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Car Talk › Re: Gear Hardly Select When Gear Oil Gets Hot... by Requestmechanic: 2:13pm On Jan 09, 2024

christianababy:
Good day,

I drive class benz otherwise known as W03. Till now, I haven't gotten any issue with it. Recently, my gear oil sump hit a pothole and was leaking, this made me changed the gear oil. Based on recommendation, I changed to recommended MB Gear Oil (Star), each litre sold @ 5k or thereabout.

However, I recently notice that the gear will hardly select past gear 2 after a long driving. What I observe:

1) This only occur when I drive too long on a bad road or hold-up that required gear 1 only. So, upon hitting better road, the revs will be very high (more than 3000) and will hardly select gear 2 and won't exceed this. Pls note that, normally my gear selects @ max of 2500 rpm

2) The gear select perfectly well (all gears) in the morning till now, when the gear oil is cold.

3) If am driving on highway, let's say from Ibadan to Akure, the gear will still select well since gear 1 is less used.

4) The same star oil being used presently was the one I used before the gear oil sump hit the stone and started leaking

What can I do my people?

If you're in Lagos contact roadside assistant by going to www.requestmechanic.com click the red circle "click on Request Now" button to get immediate assistance . Also enter your email to join the waitlist bar by clicking on join the the Wait list.

It's definitely concerning that your Mercedes W03 is having difficulty selecting gears, especially after switching to a recommended MB Gear Oil. While this oil might be compatible, the issue could be unrelated to the brand and more about other factors.

Based on your observations, here are some potential causes:

Clutch issues:

Worn clutch: Long drives in low gears, especially on rough roads, can put increased strain on the clutch. Over time, this can lead to wear and tear, making it difficult to engage higher gears, especially when the clutch is hot.
Clutch hydraulic system: There could be an issue with the clutch hydraulic system, such as air in the lines, a faulty master cylinder, or a leaking slave cylinder. This can interfere with the proper disengagement of the clutch, making it difficult to shift gears.
Transmission issues:

Synchronizers: Synchronizers are components that help match the speeds of the engine and transmission shafts before gear engagement. Worn or damaged synchronizers can make it difficult to shift gears smoothly, especially when the transmission is hot.
Internal transmission problems: Internal issues like worn gears, faulty bearings, or low transmission fluid can also lead to shifting difficulties.
Other possibilities:

Shift linkage: Malfunctions in the shift linkage, which connects the gear selector to the transmission, can cause inaccurate or difficult gear changes.
Engine mounts: Worn or damaged engine mounts can allow excessive engine movement, affecting the gearshift and making it difficult to select gears.

Thank you as you put your mail on our waitlist 🙏

Car Talk › Re: Car Talk Chat Room by Requestmechanic: 2:03pm On Jan 09, 2024

Ejikeme13:
My RX300 hard a fort it's so happened that I was driving and the car stoped moving all the gear light are showing the gear is shifting normal but the car is not moving please help

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Car Talk › Re: Car Talk Chat Room by Requestmechanic: 1:57pm On Jan 09, 2024

tayo85:
Hello , I just got a scanner and scanned my car and got these 7 codes. Any help and direction is appreciated.
Nissan Xterra

1. P0430 - Catalyst System Efficiency below threshold Bank 2.

2. P0455 - Evaporative Emission system leak detected ( Large Leak )

3. P0037 - HO2S Heater Control Circuit low bank 1 sensor 2

4. P0327 - knock sensor 1 circuit low bank 1 or single sensor

5. P0328 - Knock Sensor 1 Circuit High Bank 1 or single sensor

6. P0128 - Coolant Thermostat

7. P0138 - O2 Sensor Circuit High Voltage Bank 1 sensor 2

If you're in Lagos contact roadside assistant by going to www.requestmechanic.com click the red circle "click on Request Now" button to get immediate assistance . Also enter your email to join the waitlist bar by clicking on join the the Wait list.

Hello! I understand that you're concerned about the seven trouble codes your Nissan Xterra scanner revealed. It's definitely not ideal to have that many issues flagged, but don't worry, I can help you get some direction.

Here's a breakdown of each code and what it might mean:

1. P0430 - Catalyst System Efficiency below threshold Bank 2: This indicates that the catalytic converter in Bank 2 (the passenger side exhaust bank) isn't working as efficiently as it should. This could be due to a faulty catalytic converter, oxygen sensor issues, or exhaust leaks.

2. P0455 - Evaporative Emission system leak detected ( Large Leak ): This means the system that traps and purges fuel vapors from the fuel tank has a significant leak. This can cause fuel smells, increased emissions, and potentially even affect your car's performance.

3. P0037 - HO2S Heater Control Circuit low bank 1 sensor 2: This code points to a problem with the heating element in the oxygen sensor located in Bank 1 (the driver's side exhaust bank), Sensor 2. A faulty heater element can slow down the sensor's response time, impacting fuel efficiency and emissions.

4. P0327 - Knock sensor 1 circuit low bank 1 or single sensor: This code suggests that the Knock Sensor 1 in Bank 1 isn't receiving enough voltage or has a malfunction. Knock sensors detect engine knocks (abnormal combustion) and help adjust engine timing to prevent engine damage. A faulty sensor can lead to engine performance issues and potentially damage the engine if not addressed.

5. P0328 - Knock Sensor 1 Circuit High Bank 1 or single sensor: This is the opposite of P0327, indicating that Knock Sensor 1 in Bank 1 is receiving too much voltage or has a malfunction. Similar to P0327, this can lead to engine performance issues and potential engine damage.

6. P0128 - Coolant Thermostat: This code indicates a problem with the engine coolant thermostat. A faulty thermostat can cause the engine to run too cold or too hot, impacting fuel efficiency, performance, and engine wear.

7. P0138 - O2 Sensor Circuit High Voltage Bank 1 sensor 2: This code suggests that the oxygen sensor in Bank 1, Sensor 2 is sending a voltage signal that's higher than expected. This could be due to a sensor malfunction, exhaust leaks, or other issues affecting the air-fuel mixture.

Recommendations:

Don't ignore these codes! They're indicating potential problems with your car that could lead to further damage if left unaddressed.
Find a reputable mechanic: Take your Xterra to a qualified mechanic who can diagnose the specific issues causing these codes and recommend repairs.
Prioritize repairs: Some of these codes, like P0327 and P0328, can potentially damage your engine if not addressed quickly. Focus on fixing those first.
Get estimates: Ask the mechanic for estimates on the repairs before they start work. This will help you budget for the costs involved.
Consider DIY repairs: If you're mechanically inclined and comfortable working on your car, you might be able to tackle some of the simpler repairs yourself. However, proceed with caution and only attempt repairs you're confident in doing correctly

Than you as you do put in your mail on our waitlist 🙏

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Car Talk › Re: Maintenance Tips On Cars. by Requestmechanic: 1:48pm On Jan 09, 2024

mmadu5:
My GOOD people i salute una.. abeg recently i started noticing my car gets hot while driving on a sunny day and then stalls becomes difficult to start and move unless i wait awhile ... but when there is a no sun or hot weather i dont get this problem . pls my able mechanics in the house. what could be the problem and solution to this.

thank you God bless you ..

i will reward you with some tokens if your solution or advice works for me

Car Talk › Re: Tell Us Your Car Faults. Let's Assess And Fix Them by Requestmechanic: 1:31pm On Jan 09, 2024

Akinfrank:
Happy new year fellow Nigerians and nairalanders, I'm still on my car's issue, I appreciate everyone who has commented, i met a mechanic who told me my car engine didn't jump timing, and advised to find a good electrician, my right wheel speed sensor was fixed, the wire was damaged, the abs light went out and my speedometer is now working, I don't know if this right wheel speed sensor and non functional speedometer was responsible for my random engine cut outs which I had before.
The issue I have left is with the hard starting, it will not start in the mornings, I called my mechanic he came and took out the vacuum hose connected to the throttle body, the he added a little fuel on the throttle body and told me to start the car, and the car started once, he then told me to consult an electrician.
The electrician I consulted first told me to get a new fuel pump, but I told him I had bought a new one in the past, then he said to change the whole fuel pump assembly, I believe nothing is wrong with my fuel pump assembly, and I don't really trust all these quick judgment without a definitive test.
After the car has been started by throwing some fuel into the throttle body in the morning, it starts up again itself but it cranks for a long time, so the hard starting still persists, it never starts itself in the mornings without adding fuel on the throttle body, I need your always valuable suggestions, I have to add that when this car is started it now makes an usual exhaust sound like a backfire, I've been told my exhaust pipe leaks but I'm certain that's not the case because this funny sound came with this hard starting, thanks for your replies.

Car Talk › Re: Can Bad Injector Mouth Causes Black Smoke Or Increase Fuel Consumption by Requestmechanic: 5:54pm On Jan 08, 2024

fesomokhoa:
Please my people in the house advise me because my mechanics said I should buy another one.
I bought a car last year October 2019 everything in the car is working well. when my electrician saw the car he said the engine is very sound but is like the car will be consuming fuel and I asked how did he know he said my car is not smoking out but there is black smoke inside the exaust when he deep his hand inside. So help me to service the injector mouth twice that month I bought the car and two mouth later. So I started using the car to me the car is consuming fuel because if am driving am feeling hot nes in my eyes so I was told is fuel but black smoke is not coming out.I took it to the mechanic and the mechanic check my exhaust with his hand and saw black smoke and ask me to change the injector blog which I did but to my surprise smoke starting coming out and the fuel consumption increase after much quarrel his second in the job ask me to buy another injector mouth and put my formal nose(injector plug) the consumption will reduce and the black smoke will stop.
Please advise me

If you're in Lagos contact roadside assistant by going to www.requestmechanic.com click the red circle "click on Request Now" button to get immediate assistance . Also enter your email to join the waitlist bar by clicking on join the the Wait list.

Black smoke billowing from your exhaust is definitely a warning sign of trouble in your vehicle. The culprit is usually an incomplete combustion process, often caused by an imbalance in the air-fuel mixture or internal engine issues. Here are some of the most common causes:

1. Rich Air-Fuel Mixture:

Clogged air filter: If the air filter is clogged, it restricts the amount of air entering the engine, leading to an excess of fuel in the mix and black smoke.
Faulty mass airflow sensor (MAF): The MAF sensor measures the incoming air, and a malfunctioning one can send incorrect data to the engine computer, resulting in too much fuel being injected.
Leaking fuel injector: A leaky injector allows extra fuel to enter the combustion chamber, even during idle, causing black smoke on startup or acceleration.
Faulty oxygen sensor: This sensor monitors the amount of unburned oxygen in the exhaust and helps regulate the fuel mixture. A bad sensor can mislead the engine computer and lead to a rich mixture.
2. Engine Issues:

Worn piston rings: These rings seal the combustion chamber, preventing oil from entering and fuel from escaping. Worn rings allow oil to burn, creating black smoke.
Faulty PCV valve: This valve regulates crankcase pressure, and a malfunctioning one can allow oil vapor to enter the combustion chamber, contributing to black smoke.
Turbocharger problems: In turbocharged engines, a faulty turbocharger can cause excessive oil burning and black smoke.
3. Unusual Scenarios:

Burning something besides fuel: If something like plastic or rubber gets sucked into the intake manifold, it will burn and produce black smoke.
Using the wrong fuel: Using a lower-octane fuel than recommended can cause incomplete combustion and black smoke.
What to do next:

Stop driving immediately: Driving with black smoke can damage your engine further.
Get your car inspected by a qualified mechanic: They can diagnose the specific cause of the black smoke and recommend repairs.
Don't ignore the problem: Leaving it unattended can lead to expensive engine repairs in the long run.
Remember, black smoke is a sign of trouble, so take action promptly to keep your car healthy and safe

Car Talk › Re: Opinions Needed: My Mechanic Said I Should Use Only Water First In New Radiator. by Requestmechanic: 5:26pm On Jan 08, 2024

Jjokke:
I bought a brand new radiator for my Lexus RX330.
I told the mechanic that I need to buy coolant. He said I should use ONLY water for some time (like 3 months) before using coolant.
Please I need opinions on this because I don't know if a new radiator require only water first before using coolant.

.
If you're in Lagos contact roadside assistant by going to www.requestmechanic.com click the red circle "click on Request Now" button to get immediate assistance . Also enter your email to join the waitlist bar by clicking on join the the Wait list.

Your mechanic's advice to use only water in your new Lexus RX330 radiator for 3 months before switching to coolant is not recommended by most car manufacturers and mechanics. Here's why:

Disadvantages of using only water:

Corrosion and rust: Water lacks the anti-corrosion and anti-rust properties of coolant, which can damage the radiator, engine block, and other components in the cooling system over time.
Overheating: Water has a lower boiling point than coolant, meaning your engine is more likely to overheat, especially in hot weather or during heavy driving.
Freezing: In cold climates, water can freeze, potentially cracking the radiator and causing serious damage.
Reasons to use coolant from the start:

Protection: Coolant is specially formulated to protect your cooling system from corrosion, rust, overheating, and freezing.
Lubrication: Coolant also helps lubricate the water pump and other moving parts in the cooling system.
Optimal performance: Using the right coolant ensures your engine operates at the optimal temperature, maximizing fuel efficiency and engine performance.
So, what should you do?

It's best to follow the manufacturer's recommendations for your specific Lexus RX330 model. The owner's manual will usually specify the type and ratio of coolant to use. In most cases, it's a pre-mixed coolant that you can directly add to the radiator.

If you can't find the information in the manual, consult a different mechanic for a second opinion.

Here are some additional tips:

Never use tap water: Tap water contains minerals that can accelerate corrosion. Use distilled water or a pre-mixed coolant.
Flush the system: If you've been using water, it's a good idea to flush the cooling system before adding coolant to remove any sediment or contaminants.
Maintain proper coolant level: Regularly check the coolant level in your overflow reservoir and top it up if necessary.
By using the right coolant and maintaining proper levels, you can help extend the life of your new radiator and keep your Lexus RX330 engine running smoothly.

I hope this clarifies the situation and helps you make an informed decision!

Car Talk › Re: Honda Accord All Light On Dashboard by Requestmechanic: 5:01pm On Jan 08, 2024

Robyn2:
I have Honda Accord 2013 touring and most error light are on. I scanned it and it say abs module.
We put up to 3 abs, some light off but still on. LDW, FCW, ACC and tracking light are still on.

But abs light is off.

Can anybody help pls?

Thanks

If you're in Lagos contact roadside assistant by going to www.requestmechanic.com click the red circle "click on Request Now" button to get immediate assistance . Also enter your email to join the waitlist bar and click on join the the Wait list.

It's definitely concerning that multiple warning lights are still on in your 2013 Honda Accord Touring, even after replacing the ABS module. While the ABS light being off is a positive sign, the LDW, FCW, ACC, and tracking lights remaining lit indicate further issues with the car's safety systems.

Here are some steps you can take to diagnose and address the remaining lights:

1. Decipher the Error Codes:

When you scanned the car, did it provide specific error codes alongside the "ABS module" message? Knowing the exact codes will allow for a more precise diagnosis of the problem affecting the LDW, FCW, ACC, and tracking systems.
2. Check Sensor Connections:

The malfunctioning systems listed rely on various sensors like radar, cameras, and wheel speed sensors to function properly. Double-check that the connections to these sensors are secure and undamaged. Consult the workshop manual for your specific Accord model to locate the sensor positions and connector details.
3. System Calibration:

Replacing the ABS module might require recalibration of related systems like LDW, FCW, and ACC. Some Honda models have a self-calibration procedure, while others might require specific tools and expertise from a qualified technician.
4. Consult a Mechanic:

If the above steps don't resolve the issue, it's best to seek professional help. A qualified mechanic with experience in Honda vehicles can perform a thorough diagnosis using specialized tools and equipment. They can pinpoint the exact problem affecting the remaining warning lights and recommend the appropriate repair solution.

Car Talk › Re: My Car Not Responding To Tettle by Requestmechanic: 4:52pm On Jan 08, 2024

johnson4nosa:
Happy new to all NL please what could be wrong with my Lexus Rx300, it usually takes time before it accelerate after a long press of tettle there by dragging the motor back meanwhile I have changed the fuel pump still remain the same

If you're in Lagos contact roadside assistant by going to www.requestmechanic.com click the red circle "click on Request Now" button to get immediate assistance . Also enter your email to join the waitlist bar and click on join the the Wait list.

A sluggish acceleration, especially after a long press on the throttle pedal, can be frustrating and point to various issues in your Lexus Rx300. While replacing the fuel pump was a good start, it's not always the only culprit. Here are some other possibilities for the slow acceleration in your car:

Ignition System:

Spark plugs: Worn-out or faulty spark plugs can lead to weak spark and incomplete combustion, causing sluggish acceleration.
Ignition coils: Failing coils can disrupt the spark delivery, hindering engine performance.
Fuel System:

Fuel filter: A clogged fuel filter can restrict fuel flow to the engine, impacting acceleration.
Fuel injectors: Dirty or clogged injectors can deliver an inconsistent fuel spray, affecting combustion and power output.
Fuel pressure regulator: A faulty regulator can cause incorrect fuel pressure, leading to performance issues.
Air Intake System:

Air filter: A dirty or clogged air filter restricts air intake, causing the engine to run lean and lose power.
Mass airflow sensor (MAF): A faulty MAF sensor can provide inaccurate readings to the engine computer, resulting in improper fuel mixture and sluggish acceleration.
Other Components:

Throttle body: A dirty throttle body can hinder airflow and throttle response.
Vacuum leaks: Leaks in the intake system can allow unmetered air into the engine, disrupting the air-fuel ratio and causing performance issues.
Exhaust system: Clogged catalytic converters or restricted exhaust flow can also hinder acceleration.
Additional Tips:

Check for any warning lights on the dashboard: These may indicate specific issues like clogged sensors or malfunctioning systems.
Consider your driving habits: If you typically drive short distances, carbon buildup could be affecting performance. Take the car for a longer drive at higher speeds to clear out the system.
Consult a qualified mechanic: They can diagnose the specific problem using specialized tools and equipment and recommend the appropriate repair.

Car Talk › Re: Let's Talk Brainbox Aka ECU. by Requestmechanic: 4:45pm On Jan 08, 2024

marshalcarter:
Good evening engineer...
Please i drive 06 highlander...on Thursday my battery ran down...so i called a mechanic to help me start the car with his own battery...lo and behold...this guy plugged the battery otherwise and the car sparked...

Long story short...

My car doesn't go more than 20 anymore...I tried talking to the guy and he's telling me it's Brainbox.... please how true is this

Nigerian road side mechanic have finished me

.
If you're in Lagos contact roadside assistant by going to www.requestmechanic.com click the red circle "click on Request Now" button to get immediate assistance . Also enter your email to join the waitlist bar and click on join the the Wait list.

I understand that this is a frustrating situation for you. It sounds like the incorrect connection of the battery by the mechanic may have caused some damage to your 2006 Highlander, resulting in it being limited to speeds of 20 mph or less.

Here are some possible explanations for what could be happening:

Blown fuse: If the spark was significant, it could have blown a fuse related to the engine management system, limiting the power output and speed.
Damaged electrical components: The incorrect connection could have damaged other electrical components involved in engine ignition or fuel delivery, causing performance issues.
Computer glitches: The spark might have caused temporary glitches in the engine control unit (ECU), which could be limiting engine performance to prevent further damage.
It's important to not drive the car any further until you have it properly diagnosed and repaired by a qualified mechanic. Taking it on the road in its current state could cause further damage, potentially leading to more expensive repairs.

Here are some recommendations:

Contact a reliable mechanic: Explain the situation and symptoms to them, and schedule an appointment for diagnosis and repair. Ask them if they have experience working on Highlanders, preferably with knowledge of the potential consequences of incorrect battery connection.
Do not attempt to diagnose or repair the car yourself: Unless you have the necessary knowledge and skills, working on car electrical systems can be dangerous and could make the problem worse.
Get a battery check: Even if the battery wasn't the root cause of the issue, it's a good idea to have it checked after being connected incorrectly.
I hope this information helps! Remember, getting a proper diagnosis and repair from a qualified mechanic is crucial to resolving the issue and preventing further damage to your Highlander.

Car Talk › Re: My 2003 Camry Automatic Gear Problem by Requestmechanic: 4:28pm On Jan 08, 2024

ejembi28:
Hello everyone,

I have a Toyota 2003 Camry bought direct tokunbo last year that is giving me issues.
This car shift roughly from gear 2 to 3 with serious noise (gbi) that is very obvious. And this same noise occur on REVERSE TOO,
this noise on reverse comes up when the gear is shift on reverse and when trying to accelerate then the noise comes up gbi gbi
I have trying every possible means to let this noise stop but all to no availed
PLS the problem is not from the gear itself because I HAVE REPLACED THE GEAR WITH TOKUNBO ,I ALSO REPLACED THE BRIAN BOX, AND SOME OF THE ENGINE MOUNT,
still this roughly shift from 2 to 3 still there with the noise GBI
PLS people in the house any one with this experience? Or any auto technicians that can help detect and fix this issues perfectly ?
U opinion and recommendations is highly welcome ,Below is the pictures of the car.
ABUJA IS MY BASE
THKS.

If you're in Lagos contact roadside assistant by going to www.requestmechanic.com click the red circle "click on Request Now" button to get immediate assistance . Also enter your email to join the waitlist bar and click on join the the Wait list.

I understand your frustration with the persistent gear 2 to 3 shift issue and reverse noise in your 2003 Toyota Camry. Replacing the gear, brain box, and some engine mounts is a significant effort, but unfortunately, it hasn't resolved the problem. Here are some further steps you can consider:

1. Narrow down the source of the noise:

Listen carefully: Try to discern if the noise originates from the engine, transmission, driveshaft, or wheels. Does it change with engine RPM, speed, or turning?
Isolation test: Raise the car on jack stands and have someone shift gears while you listen close to different components. This can help isolate the source of the sound.
2. Explore other potential causes:

Transmission fluid: Check the transmission fluid level and condition. Low or dirty fluid can lead to rough shifting and noise. Consider a fluid change and filter replacement.
Drivetrain components: Inspect the driveshaft, u-joints, and CV axles for wear or damage. These components can also cause noise and vibration.
Clutch (if manual transmission): A worn clutch can cause rough shifting and grabbing, especially in higher gears.
Differential: The differential can also create noise if worn or defective.

Car Talk › Re: Honda Pilot And The Cylinders Deactivation Technology by Requestmechanic: 1:56pm On Jan 08, 2024

iddoro:
Please Car Guru I would like to be enlightened about the Honda Pilot Cylinders deactivation TECHNOLOGY which tend to have negative impact on the engine

In view of this issue Is Honda Pilot 2009 to 2012 good SUVs

Your enlightenment is needed

Honda Pilot Cylinders Deactivation Technology: Pros and Cons
Honda's Variable Cylinder Management (VCM) technology, used in certain Honda Pilots between 2009 and 2014, has both positive and negative aspects:

Positives:

Improved fuel economy: By deactivating cylinders under light load conditions, VCM can improve fuel efficiency by around 5-10%.
Reduced emissions: Lower fuel consumption also means fewer emissions.
Negatives:

Engine vibrations: When VCM kicks in, some drivers report increased engine vibrations and noise, especially at low speeds and while idling.
Premature engine wear: Some reports suggest VCM can contribute to premature wear and tear on certain engine components, particularly the lifters and piston rings. This is due to increased stress on those parts when switching between active and deactivated cylinders.
Potential oil starvation: In some cases, VCM may lead to decreased oil circulation to certain cylinders, potentially impacting their longevity.
Impact on Your Decision:

Whether or not the potential downsides of VCM outweigh the benefits for you depends on your priorities:

If fuel economy is your top concern, a Honda Pilot with VCM could be a good option, especially if you primarily do highway driving.
If you prioritize smooth engine operation and long-term engine reliability, you might want to consider other SUV options or look for Pilots without VCM.
Honda Pilot 2009-2012 Overall:

Beyond VCM, the 2009-2012 Honda Pilot is generally considered a reliable and well-regarded SUV. Here's a quick summary:

Positives: Spacious interior, comfortable ride, strong engine, good safety ratings, high resale value.
Negatives: Not the most fuel-efficient, dated interior design compared to newer models, some potential issues with VCM-equipped models.
Recommendation:

If you're considering a 2009-2012 Honda Pilot, I recommend:

Do your research: Find out if the specific model you're interested in has VCM.
Test drive the vehicle: Pay attention to engine noise and vibration, especially at low speeds and while idling.
Get a pre-purchase inspection: This can help identify any potential engine issues, including possible VCM-related problems.
Weigh the pros and cons: Decide whether the potential fuel economy benefits of VCM outweigh the potential downsides for you.
Ultimately, the decision of whether or not a 2009-2012 Honda Pilot is a good SUV for you depends on your individual needs and priorities

Thanks and God bless

Car Talk › Re: Honda Pilot And The Cylinders Deactivation Technology by Requestmechanic: 1:49pm On Jan 08, 2024

iddoro:
Please Car Guru I would like to be enlightened about the Honda Pilot Cylinders deactivation TECHNOLOGY which tend to have negative impact on the engine

In view of this issue Is Honda Pilot 2009 to 2012 good SUVs

Your enlightenment is needed

Thanks and God bless

If you're in Lagos contact roadside assistant by going to www.requestmechanic.com click the red circle "click on Request Now" button to get immediate assistance . Also enter your email to join the waitlist bar and click on join the the Wait list.

Sure, I can tell you about Honda's cylinder deactivation technology, also known as Variable Cylinder Management (VCM), and its potential downsides.

What is VCM?

VCM is a fuel-saving technology used in some Honda engines, primarily V6s. It essentially allows the engine to run on three or four cylinders instead of all six under certain driving conditions, like cruising on the highway. This reduces pumping losses and internal friction, improving fuel efficiency by up to 6%.

How does VCM work?

VCM uses the i-VTEC system to deactivate one bank of cylinders (three cylinders) by stopping fuel injection and valve operation for those cylinders. When the engine needs more power, VCM seamlessly reactivates all cylinders.

Potential downsides of VCM:

While VCM offers fuel-saving benefits, it has been criticized for some potential downsides:

Increased engine vibration: When running on fewer cylinders, the engine can vibrate more noticeably, especially at low speeds. This can be perceived as a lack of refinement.
Image of Honda Pilot engine vibrationOpens in a new window
www.ebay.com
Honda Pilot engine vibration
Premature engine wear: Some owners report increased wear and tear on engine components like mounts and lifters due to the additional stress from cylinder deactivation. However, there is no conclusive evidence to support this claim.
Oil sludge buildup: VCM can contribute to oil sludge buildup due to lower engine temperatures during cylinder deactivation. This can potentially lead to engine damage if not addressed through proper maintenance.
Reduced towing capacity: When VCM is active, the towing capacity of the vehicle is often reduced.
It's important to note that these are potential downsides, and not all Honda VCM engines experience them. Some newer VCM systems have addressed some of these concerns, and following proper maintenance schedules can help mitigate the risks.

Ultimately, whether the benefits of VCM outweigh the potential downsides is a personal decision. If you're concerned about the technology, you can research specific models to see if owners report any issues. You can also consider disabling VCM altogether, although this may void your warranty and impact fuel economy.

Car Talk › Re: Peugeot: Cars With Attitude! by Requestmechanic: 1:35pm On Jan 08, 2024

fabulousmann:
Hi please my 206 has entered eco mod and won’t start please help

If you're in Lagos contact roadside assistant by going to www.requestmechanic.com click the red circle "click on Request Now" button to get immediate assistance . Also enter your email to join the waitlist bar and click on join the the Wait list.

I understand how frustrating it can be when your car won't start, especially when it enters "eco mode". Here are some things that could be causing the issue with your 206 Peugeot and possible solutions:

Potential causes:

Low battery: Eco mode can activate as a warning for a weak battery. Check the battery voltage with a voltmeter. If it's below 12.4 volts, it might need a jump start or replacement.
Faulty alternator: The alternator charges the battery. If it's malfunctioning, the battery won't get enough power, triggering eco mode. Check the alternator output.
Electrical fault: A parasitic drain, where something is slowly draining power even when the car is off, can also trigger eco mode. Disconnect the battery and check for a drop in voltage over time.
BSI (Body Service Interface) issue: The BSI controls various electrical functions in the car, including eco mode. A malfunction can cause it to stay activated. Resetting the BSI (with proper instructions) might help.
Sensor problems: Faulty sensors related to battery voltage, coolant temperature, or other factors can confuse the system and activate eco mode unnecessarily. Diagnosing and replacing any faulty sensors may be needed.
Things you can try:

Jump start the car: If the battery is low, try jump starting it. However, if this becomes a frequent occurrence, consider replacing the battery.
Check fuses: Frayed or blown fuses related to eco mode or essential starting components can cause issues. Check the relevant fuses in the fuse box and replace any faulty ones.
Consult the owner's manual: The manual might have specific troubleshooting steps for eco mode issues related to your 206 model.
Seek professional help: If you're not comfortable troubleshooting yourself, or if the above suggestions don't work, it's best to take your car to a qualified mechanic. They have the diagnostic tools and expertise to pinpoint the exact problem and fix it.
Additional tips:

Avoid leaving electrical accessories like lights or radio on for extended periods when the engine is off, as this can drain the battery.
Regularly maintain your car, including battery checks and alternator testing, to prevent future eco mode issues.
I hope this information helps you get your 206 Peugeot out of eco mode and back on the road! Remember, safety first. If you're unsure about any repair procedures, consult a professional mechanic

1 Like

Car Talk › Re: Club-Lexus by Requestmechanic: 1:15pm On Jan 08, 2024

Joeeasy:
Hey guys,

I'm getting this knocking sound from my 2013 GS350
https://www.youtube.com/shorts/MN194imQKdg

The mechanic said we'll have to replace the engine, I want a second opinion, last time the car was serviced was 3 months there was no check engine or oil pressure light.

If you're in Lagos contact roadside assistant by going to www.requestmechanic.com click the red circle "click on Request Now" button to get immediate assistance . Also enter your email to join the waitlist bar and click on join the the Wait list.

Knocking sounds in a car can be concerning, especially in a luxury vehicle like a 2013 Lexus GS350. Unfortunately, diagnosing the exact cause based on just the sound description is difficult. However, I can offer some guidance to help you narrow down the possible sources and next steps:

First, try to describe the knocking sound in more detail:

When does it occur? Is it only at idle, under acceleration, while turning, or constantly?
Where does it seem to come from? Does it sound like it's coming from the front, back, left, right, or top of the engine?
How loud is it? Is it a faint ticking or a loud clunking?
Does it change with engine speed or load? Does it get louder or faster as you rev the engine or accelerate?
Are there any other symptoms? Any warning lights on, loss of power, rough idle, or unusual smells?
The more information you can provide about the sound and any other related symptoms, the easier it will be to identify the potential cause.

Here are some possible sources of knocking sounds in a 2013 Lexus GS350:

Engine:
Valvetrain: Worn or loose lifters, rocker arms, or camshafts can cause a ticking or clattering sound.
Piston rings or connecting rods: Worn or damaged components can lead to a deeper knocking sound.
Crankshaft bearings: Worn or damaged bearings can create a loud knocking sound, especially at higher engine speeds.
Fuel system:
Detonation or pre-ignition: Using low-quality fuel or incorrect timing can cause a knocking sound similar to pinging.
Exhaust system:
Loose heat shields or exhaust leaks: Can create a rattling or clunking sound.
Suspension or drivetrain:
Worn or failing components in the suspension or drivetrain can cause various knocking or clunking sounds depending on the specific issue.
Recommendations:

Don't ignore the knocking sound. It could be a sign of a serious problem that could worsen and lead to expensive repairs.
Take your car to a qualified mechanic as soon as possible. They can diagnose the source of the sound and recommend the appropriate repairs.
It's especially important to consult a mechanic familiar with Lexus vehicles as they may have specific knowledge of common issues with the GS350 model.
If you're unsure about the mechanic's diagnosis, consider getting a second opinion from another reputable shop.
I hope this information helps! Please let me know if you have any other questions or if you need further assistance.

Car Talk › Re: Hard Starting On 2009 Honda Accord by Requestmechanic: 12:42pm On Jan 08, 2024

senator2k9:
Hello Auto experts in the house. My Honda 2009 has difficulty in starting especially when the engine is very cold. I was told it was a failing fuel pump.

I changed the fuel pump yesterday n the problem still persist. Its that bad that when u park for just 5 mins, u will have to start it between 3 to 5 times before it will start.

My local kazeem told me it might be the ECT sensor.

I need advice before it will spoil my kick starter.

If you're in Lagos contact roadside assistant by going to www.requestmechanic.com click the red circle "click on Request Now" button to get immediate assistance . Also enter your email to join the waitlist bar and click on join the the Wait list.

When was the last time you had the following components serviced?
Battery
Spark plugs
Ignition coils
Air filter
Engine oil and filter
Once I have this information, I can provide you with some more specific troubleshooting steps or suggestions for what might be causing the problem.

In the meantime, here are some general things you can try:

Check the battery voltage. A cold battery can have less cranking power, so make sure it's fully charged. You can either test it yourself with a voltmeter or take it to an auto parts store to have it checked.
Try giving the engine a few extra seconds to crank before letting go of the key. This gives the fuel pump more time to pressurize the system.
If you haven't recently changed your spark plugs, consider doing so. Worn or fouled plugs can make it difficult for the engine to start, especially in cold weather.
Make sure you're using the correct type of oil for your car's climate. Thicker oil can be harder for the engine to turn over in cold weather.

Car Talk › Re: Tell Us Your Car Faults. Let's Assess And Fix Them by Requestmechanic: 12:09pm On Jan 08, 2024

kingreign:
Snap picture of the cluster with the battery light showing.

If you're in Lagos contact roadside assistant by going to www.requestmechanic.com click the red circle "click on Request Now" button to get immediate assistance . Also enter your email to join the waitlist bar and click on join the the Wait list.

A lit battery light in your 2006 Honda Civic Hybrid can indicate several different issues, depending on other symptoms and how the light is behaving. Here's what I can suggest to help troubleshoot:

**First, clarify the light**:

* **Is it the regular battery light (looks like a car battery) or the IMA light (green wrench logo)?** The IMA light specifically denotes issues with the Integrated Motor Assist system, including the hybrid battery.
* **Is the light on constantly, blinking, or dimming?** Different behaviors can point to different causes.

**Based on the type and behavior of the light, here are some possible explanations:**

**Regular battery light**:

* **Constant light:** This could indicate a faulty 12-volt battery, alternator, or charging system.
* **Dimming light:** This could be a sign of a loose or corroded battery terminal.

**IMA light**:

* **Constant light:** This suggests a problem with the hybrid battery itself, its sensors, or the IMA system components.
* **Blinking light:** This often indicates a temporary issue like low battery voltage or excessive heat.

**Next steps**:

* **If the light is the regular battery light:**
* **Check the 12-volt battery terminals for corrosion or looseness.** Tighten them if necessary.
* **Get the battery tested at an auto parts store or mechanic.** It may need replacement.
* **If the battery is good, have the alternator and charging system checked by a mechanic.**
* **If the light is the IMA light:**
* **Read the owner's manual for specific instructions on what to do when the IMA light comes on.**
* **Avoid putting excessive strain on the hybrid system**, such as heavy acceleration or uphill driving.
* **Have the car diagnosed by a qualified mechanic, preferably one with experience in hybrid vehicles.** They can read diagnostic trouble codes and pinpoint the issue with the IMA system.

**Important Note:** Ignoring a lit battery or IMA light can lead to further damage to the hybrid system and other components. It's important to address the issue as soon as possible.

I hope this information helps you narrow down the cause of the battery light in your Honda Civic Hybrid!

Car Talk › Re: What 5 Things Will You Checkout For Before Buying A Fairly Used Corolla by Requestmechanic: 2:53pm On Jan 07, 2024

Engine,gear box, catalyst and body parts if it is first painting, rust..
For consultation,or get juicy tips on car maintenance please follow us on Twitter request mechanic,or on Facebook. To get a quick response from an automobile mechanic please click on request now on www.requestmechanic.com..or you could drop your mail on our waitlist.😊

Car Talk › Re: �️common Problems Found In Toyota Brand Vehicle�️ by Requestmechanic(op): 8:47pm On Jan 06, 2024

JAYUK:
You go explain tire,108 views no comment😧😧,God abeg

🤣

Car Talk › Re: . by Requestmechanic: 9:57pm On Jan 04, 2024

bukitt:
Thank you. Can i replace tie rod only without ball joint?

Yes you can replace, but would need alignment after replacing so it doesn't repeat same issue

Car Talk › �️common Problems Found In Toyota Brand Vehicle�️ by Requestmechanic(op): 4:41pm On Jan 04, 2024

These are the common problems found in Toyota brands:
1.fuel pump issue
2. Brake problem which we all know
3. Engine oil sludge common in Toyota produced within the year 1997 -2005
4. Excessive oil consumption
5. Suspension problem
6. Air conditioning can be faulty at times
You could drop some other Toyota brand problems if you know..we learn everyday..
Do you know you could get your vehicle fixed with an immediate response,and within your location by clicking on request now at www.requestmechanic.com. Or join the waitlist on requestmechanic.com and get more juice tips on your brand maintenance

Car Talk › Re: . by Requestmechanic: 2:37pm On Jan 04, 2024

1. Check air pressure of your car tires

If you find out that your steering wheel hard to turn at low speeds, the first thing you should check will be the air pressure of all your tires. All tires of a car should be filled with equal air and stayed at automaker’s recommended PSI (Pound per Square Inch) in order to prevent improper air amount in tires that leads to stiff steering.

2. Check power steering condition and fluid level

Steering wheel hard to turn at low speeds can happen due to some problems related to power steering fluid level and condition. Therefore, if this case occurs, you need to check both power steering condition and fluid level. (Note: You can easily found the power steering fluid in a cylindrical reservoir which is close to a power-steering belt and being labeled clearly. The cylinder may be a plastic cylinder or a metal one). Inadequate fluid is the reason makes hard and stiff steering. Thus, you need to keep the fluid at accurate full level and the color should be a dark red. If you observe that the fluid color is too dark and old, it’s time for you to change the fluid.

3. Check the pulley on the power steering unit

When your steering wheel hard to turn, inspecting the pulley on the power steering unit is what you should do. Notice that you only check the pulley when the engine of your car off to ensure the safety. Normally, proper tension doesn’t exceed one inch of play or three quarters. For checking tension, you just press your thumb down on the belt. Make sure that the pulley belt condition is good enough with no cracks or frayed edges.

Moreover, you also take a visual check with the car engine running to ensure that the pulley belt is running well. If you observe that the belt is slipping, you can face stiff and erratic steering.

4. Check the power steering unit

Next thing to do is inspecting the power steering unit. As a leak from connecting pressure hoses will decrease your pressure and thus leads to hard steering. Hence, a visual check for fluid leaks here is what you should do.

5. Check the front end parts

Check the front end parts like tie rod ends and ball joints for wear and lubrication. Too much wear on ball joints or tie rod ends is too dangerous and can cause steering wheel to turn as well. Inspecting these parts to make sure that your car has got proper front end alignment. A warning sign would be irregular front tire wear and your car will pull to one side when you drive it. You can face stiff steering, particularly when you make a turn if all the wheels of your car are not aligned precisely.

Moreover, regular maintenance and scheduled servicing are the best ways to keep your car free of this problem. You should check the fluid level at regular intervals. Also, make sure to have the power steering system diagnosed every time you send the car to a servicing shop for the schedule checkup. You could do further consultation on www.requestmechanic.com by clicking request now.

Car Talk › Re: Toyota Camry 2002 Timing Belt by Requestmechanic: 10:20am On Dec 24, 2023

There are so many reasons your timing belt keeps cutting..dryness of the timing belt makes it become brittle, misalignment, driving too..entering gallops, potholes etc for further enquiries you could consult a Toyota specialist using www.requestmechanic.com

Car Talk › >>> Most Of Your Engine Overheating Is Caused By Your Radiator Cover? <<< by Requestmechanic(op): 12:24pm On Dec 12, 2023

Do you know these tiny radiator covers have sent so many vehicles and engines to early graves.
They look so small but very vital in your cooling system and when used wrongly you stand a chance of loosing your engine.

Now, that small spring you see under your radiator covers have you ever asked yourself why its there and its function or you think its for fancy?
Radiator covers work like a kind of supply and recovery system through the help of valves.
There are two major valves that do these jobs. They are the RADIATOR CAP PRESSURE RELIEF VALVE and VACCUM VENT VALVE. Their job in a lay man's voice is for to and fro of pressurized vapour.

As engine is running, coolant boils and become vapour, its temperature rises. As the temperature and pressure rise further and above atmospheric pressure more pressure builds against the spring of the pressure relief valve of the radiator cap untill at a certain pressure the valve opens.

When the valve opens the hot coolant flows out into an overflow container (the white container that sits beside the radiator with tiny hose and cover on top).
As the engine cools, the coolant contracts, pressure in the radiator drops, atmospheric pressure in the overflow container will then open the second valve of the radiator cover (THE VACCUM VENT VALVE) and overflow coolant flows back into the radiator.

You experience this more when your car overheats. This is why its very dangerous to open your radiator cap at this point because thats the point the atmospheric pressure and pressure of the hot radiator are battling and trying to balance each other.
If you dare open either the radiator cover or the overflow cap at this point you will get a massive explosion of your life, so stay safe.

NOW, HOW DO THIS RADIATOR COVER DAMAGE ENGINE?

▪︎ When the pressure relief valve is faulty and refuse to open, hot vapour cannot be released from the engine so it will find a weak point like top gasket, radiator plastic or any weak part of the radiator, hose or engine block and burst it open and discharge from there.

▪︎ If it opens and didn't close back or the return valve didn't open you may loose all the coolant in your radiator inform of vapour, your engine will dry, crack and burn.

Now you've got the point, can you now see that little things matters.
If you like change your radiator fan or wash your radiator 100 times and still fails to replace your faulty radiator cover your engine will continue to overheat.

©️Engr Gozie Atueyi.

Car Talk › Re: Check Light Not Showing by Requestmechanic: 6:00pm On Dec 11, 2023

Best take the vehicle to a Toyota specialist...not just any mechanic. If you can't get a Toyota specialist you can go to www.requestmechanic.com and get connected to one. If you're within Lagos and it's environ.

Car Talk › Re: Check Light Not Showing by Requestmechanic: 5:59pm On Dec 11, 2023

There are literally hundreds of reasons why your car might not start. It's out of gas, the fuel pump failed, it has a dead battery, the ecm has failed, somone stole your starter. You have to provide details of you want real help.

The check engine light should illuminate for a few seconds with the key on and the engine off. If it doesn't the bulb is out. The check light will only stay on if the engine is running and the and there are diagnostic codes in memory or there is a current fault. If for instance, the engine cranks but won't start because the fuel pump has failed you will not get a check engine light because the fuel pump is not monitored by the ecm.

Car Talk › Re: Maintenance Tips For Honda Cars by Requestmechanic: 5:48pm On Dec 11, 2023

Make sure the air pressure in tires is accurate. Wheel balancing and alignment should be maintained and checked at regular intervals.
Apply brakes smoothly and anticipate your stops.
Fill fuel in the coolest hour of the day for better fuel efficiency, high temperature affects the efficiency drastically.

Car Talk › Re: No Car Brand Or Model Is BAD. Do You AGREE Or DISAGREE With That? by Requestmechanic: 4:53pm On Dec 11, 2023

Of a truth no car is bad, but there key things to look out for before purchasing, the engine, air conditioning, maintenance light, model,brand etc .

Car Talk › Re: What Event Motivates You To Learn How To Drive? by Requestmechanic: 1:00pm On Dec 08, 2023

It was among the top things on my to do list..and for emergency

Car Talk › Re: Best Used Cars To Buy In 2023 by Requestmechanic: 7:18pm On Dec 04, 2023

Toyota, mercedes, honda, BMW all depends on your budget, location etc Honda's are best used in the northern part of Nigeria compared to the southern part cos of the good road network.. seeking for a specialist or consultant on your premium cars visit www.requestmechanic.com

Car Talk › Re: What To Look Out For When Getting A Tokunbo Or Nigerian Used Vehicle by Requestmechanic(op): 1:07pm On Dec 04, 2023

Heat and air conditioning. ...
Power windows. ...
Automatic vs. ...
Engine type. ...
Is the body of the vehicle very important?

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