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Mechanic Roundtable - Car Talk (5) - Nairaland

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Re: Mechanic Roundtable by Billiebaba(m): 4:49am On May 25, 2020
Blackbishop:


Why sir?
Hope I never match line sir?

I was a Computer Science Graduate
Nooo, not at all, I just wan throw twaile for you ni. Nothing else

1 Like

Re: Mechanic Roundtable by Blackbishop(m): 6:41am On May 25, 2020
What is ABS Wheel Speed Sensor?

An ABS wheel speed sensor counts wheel revolutions. It reads the wheel rotation and measures it in revolutions per minute (RPMs). It should not be confused with the gauge on the dashboard that displays the engine RPM via the tachometer. 


Common Causes Of A Bad/Failing ABS Wheel Speed Sensor

° Dirt at the tip of the wheel Speed sensor.

ABS Sensor Defective

Loose or broken ABS wheel speed sensor wire

Defective ABS relay or a blown fuse

Bad ABS Module

Burned ABS motor

Damaged wires

Low battery voltage

One or more wheel speed sensors (ABS sensors) may fail to render the ABS inoperable and triggering multiple warning lights on the dashboard. Some things that you may notice are:

ABS system disabled, as well as disabled electronic stability control (ESC) or traction control systems, if the vehicle is equipped with them, as these systems rely on the same sensors as the ABS system.

ABS warning light illuminated on the dashboard.

Occasionally, the speedometer will stop working and the check engine light will illuminate


Symptoms Of A Bad Wheel Speed Sensor

The first symptom is the Check Engine light coming up on your Dashboard, followed by

Traction Control Light On

Stability Control Light On

Transmission Won't Shift Gears

Vehicle in Limp Mode

Note: Run a proper diagnosis on your ABS Wheel Speed Sensor to know if one or more of the Sensor is affected or if the wire or connector needs correcting.

Re: Mechanic Roundtable by olawale360: 8:01pm On May 25, 2020
I have some issues with my RX 300 last month. Whenever I'm driving and the engine becomes hot, I do hear a sound like a ticking sound which makes it difficult to move.The temperature is a little bit above average. I ran a diagnosis and I was told to replace the two knock sensor and two 02 sensors. He said each sensors cost 7.5k each (30k). Last week a friend heard the sound and told me he had a similar issue with his Lexus too. His mechanic told me its a faulty thermostat and it has to be removed and connected the two fans directly, so it can start cooling the engine whenever I start the car. The car is working fine now, no more sound, moves very well and the temperature is back to normal.

I hope there won't be implications for the changes made? Thanks
Re: Mechanic Roundtable by Blackbishop(m): 1:07am On May 26, 2020
olawale360:
I have some issues with my RX 300 last month. Whenever I'm driving and the engine becomes hot, I do hear a sound like a ticking sound which makes it difficult to move.The temperature is a little bit above average. I ran a diagnosis and I was told to replace the two knock sensor and two 02 sensors. He said each sensors cost 7.5k each (30k). Last week a friend heard the sound and told me he had a similar issue with his Lexus too. His mechanic told me its a faulty thermostat and it has to be removed and connected the two fans directly, so it can start cooling the engine whenever I start the car. The car is working fine now, no more sound, moves very well and the temperature is back to normal.

I hope there won't be implications for the changes made? Thanks


Boss first and foremost never try that idea of Kazeem again, your thermostat is very important to your engine and it save the lifespan of the Engine. Now the cause of the overheating is not resolved yet and you re gradually killing the engine. So boss I will advice you spend to prevent great loss. I can tell you very soon you will experience flat gasket and spend more to keep the engine now

For more details chat me up sir

B-Automobile Nigeria Limited
08055347947

1 Like

Re: Mechanic Roundtable by Blackbishop(m): 1:49pm On May 26, 2020
How many of you know this?

B-Automobile Nigeria Limited
08055347947

2 Likes

Re: Mechanic Roundtable by oluyemifelix(m): 2:35pm On May 26, 2020
not all cars

1 Like

Re: Mechanic Roundtable by autologic: 7:59pm On May 27, 2020
Blackbishop:
Bad or Failing Alternator

I just finish working on a customer's car, the customer came with the complaint of rough idling and scanned the car to discover Engine Misfire and Camshaft Position Sensor and I recommended the plugs to be changed and the sensor too.

After the whole repair the car refuse to crank, at first I thought this is a drained battery symptom.
I jump start the car and it was running fine only to act out of curiosity if the battery is the problem or the alternator.
So I removed the negative terminal and the car went off, I jump start and repeat the same procedure few times to be sure of the bad alternator.
So in conclusion the alternator was bad and I advised the customer to get a new one.

So I will give few signs to indicate your alternator is going bad

Symptoms of a Failing Alternator

The indicator light on the dashboard.. Mostly battery sign or Alt sign or Gen sign

Headlights are dim or flickering.

Other electrical failures. ...

Strange noises. ...

Car stalls or has difficulty starting. ...

Battery dies

So when you start experiencing any or all of this symptoms take it to your nearest qualified Auto Technician..

B-Automobile Nigeria Limited
Method of removing the battery terminal to test the alternator is very crude and not a standard method and accurate method of testing alternator even some cars model will even go off with terminal removed and doesn't imply that alternator is faulty moreso u can destroy sensitive modules and accessories especially if u are working with late model cars laced with communication network . There are many recommended method and more accurate way of testing alternator without removing battery terminal,I will advise to check them up online .

2 Likes

Re: Mechanic Roundtable by Blackbishop(m): 8:54pm On May 27, 2020
autologic:

Method of removing the battery terminal to test the alternator is very crude and not a standard method and accurate method of testing alternator even some cars model will even go off with terminal removed and doesn't imply that alternator is faulty moreso u can destroy sensitive modules and accessories especially if u are working with late model cars laced with communication network . There are many recommended method and more accurate way of testing alternator without removing battery terminal,I will advise to check them up online .


Good day sir/ma I really appreciate the heads up. The method is crude and it was carried out specifically for the purpose of the brand and model. In other cars code like generator circuit below threshold pops up on scanning tools.

Thanks boss

Re: Mechanic Roundtable by Blackbishop(m): 6:03am On May 28, 2020
Anti-Theft

I want to share an experience with you, I was to supervise the changing of Windshield for a customer yesterday, Hyundai Sonata 2011 Model. I drove the car down to Ladipo, the process of changing started with no issues whatsoever, After about one hour the changing was over and was about to leave when the car refuses to come to live.

The coming to live was not just cranking, but the car refuses to to even show Dashboard light, the only thing working was the horn. I was thinking it was the battery and guess what with all the batteries, the car didn't bulge.

So I called the owner to explain and was expect a threat from him and all, but he was calm and even was trying to proffer solutions to it.
At the end I resolve to calling a programmer to reprogram the car security system after concluding the car actually went into locked down mode.

So the reason I putting this forward was because I want you all to learn and understand the work of your anti theft system, the car went into lock down mode just because it detects a break-in from the windshield changing.

Always I repeat make sure you remove the battery if you are performing any major work on cars that the system is hyper sensitive.

Thank you

B-Automobile Nigeria Limited
08055347947

2 Likes

Re: Mechanic Roundtable by Blackbishop(m): 6:35am On May 31, 2020
What does P0507 mean?

A customer brought his car (Hyundai Elantra 2008) for diagnosis, one of the fault code the car had was P0507.

The code goes this way; P0507 Idle Air Control System RPM Higher Than Expected.

This P0507 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle.

Causes

A vacuum leak
Leaking air intake after the throttle body
EGR valve leaking vacuum
A faulty positive crankcase ventilation (PCV) valve
Damaged/failed/dirty throttle body
Failed EVAP system
Failed IAC (idle air controller) or faulty IAC circuits


Solutions

A proper diagnosis will be needed to know which of the causes triggered the fault code

Re: Mechanic Roundtable by Blackbishop(m): 9:37am On May 31, 2020
Hyundai Elantra 2008
Naija Registered

The First body
Gear ok
Engine will need to be replaced
AC working fine

Call for Negotiation

B-Automobile Nigeria Limited
08055347947

Re: Mechanic Roundtable by Doppleganger: 11:20pm On May 31, 2020
Hi, please I need a benz specialist in Benin.
Re: Mechanic Roundtable by Blackbishop(m): 7:13am On Jun 01, 2020
Doppleganger:
Hi, please I need a benz specialist in Benin.

I reside in Lag, but what is the issue let me see if I can help you with suggestions.

You can chat me as well

B-Automobile Nigeria Limited
08055347947
Re: Mechanic Roundtable by Blackbishop(m): 8:07am On Jun 01, 2020
P0501 - Vehicle Speed Sensor Range - VSS

How The VSS Works Typically, the VSS is an electromagnetic sensor that uses a rotating reluctor ring to complete an input circuit to the PCM. The VSS is mounted in the transmission housing at such a position as to allow the reluctor ring to pass by it; in close proximity. The reluctor ring is attached to the output shaft of the transmission so that it spins along with it. As the reluctor ring passes by the electromagnetic tip of the VSS, notches and grooves serve to complete and interrupt the circuit rapidly. These circuit manipulations are recognized by the PCM as transmission output speed or vehicle speed.

Potential Symptoms

loss of anti-lock brakes

The "anti-lock" or "brake" warning lamps on the dash may be lit

The speedometer or odometer may not work properly (or at all)

Your vehicle's RPM limiter may be decreased

The shifting of an automatic transmission may become erratic other symptoms may also be present

Causes

The Vehicle Speed Sensor (VSS) is not reading (functioning) properly
There is a broken/frayed wire leading to the vehicle speed sensor
The vehicle's PCM is not correctly configured for the actual tire size on the vehicle
And lastly the ECM might be going bad, but that should be the last resort.

Solutions

Check for the possible solutions from the causes listed above.

Related vehicle speed sensor trouble codes:

P0500 Vehicle Speed Sensor "A" Malfunction
P0502 Vehicle Speed Sensor "A" Low Input
P0503 Vehicle Speed Sensor "A" Intermittent/Erratic/High

Re: Mechanic Roundtable by OloyeChartered: 8:20pm On Jun 01, 2020
Good day all,
After scanning my Peugeot 406, it showed Air Pump Relay Permanent Fault.
Please what does this mean?
Re: Mechanic Roundtable by adedapodvirus001(m): 9:04pm On Jun 01, 2020
Good evening bro

I have an issue with my Honda civic 08, when I start the car in the morning it will start fine and once but if I drive it for like 15 minutes up ward and stop and I decide to start again, it will be doing hard starting and if it refuse to start and I leave it for sometime it will start again.

Please what is the cause of this?

What do I need to do to fix this?

The thing dey embarrass me inside traffic
Re: Mechanic Roundtable by Blackbishop(m): 10:30pm On Jun 01, 2020
OloyeChartered:
Good day all,
After scanning my Peugeot 406, it showed Air Pump Relay Permanent Fault.
Please what does this mean?

Pls send me the fault code first
Re: Mechanic Roundtable by Blackbishop(m): 10:31pm On Jun 01, 2020
adedapodvirus001:
Good evening bro

I have an issue with my Honda civic 08, when I start the car in the morning it will start fine and once but if I drive it for like 15 minutes up ward and stop and I decide to start again, it will be doing hard starting and if it refuse to start and I leave it for sometime it will start again.

Please what is the cause of this?

What do I need to do to fix this?

The thing dey embarrass me inside traffic


Boss we have some many issues related to that
It can be Crankshaft sensor
Neutral shift solenoid
Camshaft position sensor

But I will like to know the fault code boss
Re: Mechanic Roundtable by AbujaNigeria(m): 12:37pm On Jun 02, 2020
Hi Blackbishop,
My 2003 Corolla came up with check light with
P0420 - Catalyst System Efficiency Below Threshold (Bank 1)

How do I get it fix?

Someone suggested 02 sensor fouler. Can you help me to get one?

Awaiting your kind response.
Re: Mechanic Roundtable by Blackbishop(m): 1:58pm On Jun 02, 2020
AbujaNigeria:
Hi Blackbishop,
My 2003 Corolla came up with check light with
P0420 - Catalyst System Efficiency Below Threshold (Bank 1)

How do I get it fix?

Someone suggested 02 sensor fouler. Can you help me to get one?

Awaiting your kind response.

The Code P042X deals with the exhaust system ranging from Catalyst converter to Your Oxygen sensors. So if the code you are having is just the P0420 then try out the cheap ones first, change O2 sensor and that should solve the case.

For more you can get in touch with me
08055347947
Re: Mechanic Roundtable by Zane2point4(m): 1:58pm On Jun 02, 2020
Blackbishop:
What is ABS Wheel Speed Sensor?

An ABS wheel speed sensor counts wheel revolutions. It reads the wheel rotation and measures it in revolutions per minute (RPMs). It should not be confused with the gauge on the dashboard that displays the engine RPM via the tachometer. 


Common Causes Of A Bad/Failing ABS Wheel Speed Sensor

° Dirt at the tip of the wheel Speed sensor.

ABS Sensor Defective

Loose or broken ABS wheel speed sensor wire

Defective ABS relay or a blown fuse

Bad ABS Module

Burned ABS motor

Damaged wires

Low battery voltage

One or more wheel speed sensors (ABS sensors) may fail to render the ABS inoperable and triggering multiple warning lights on the dashboard. Some things that you may notice are:

ABS system disabled, as well as disabled electronic stability control (ESC) or traction control systems, if the vehicle is equipped with them, as these systems rely on the same sensors as the ABS system.

ABS warning light illuminated on the dashboard.

Occasionally, the speedometer will stop working and the check engine light will illuminate


Symptoms Of A Bad Wheel Speed Sensor

The first symptom is the Check Engine light coming up on your Dashboard, followed by

Traction Control Light On

Stability Control Light On

Transmission Won't Shift Gears

Vehicle in Limp Mode

Note: Run a proper diagnosis on your ABS Wheel Speed Sensor to know if one or more of the Sensor is affected or if the wire or connector needs correcting.
*for sometime now my dash is showing check vsc sign, i dont know if its related with wat you said up there, no check engine light, just check vsc, its a 2010 toyota camry*
Thanks.
Re: Mechanic Roundtable by Blackbishop(m): 2:39pm On Jun 02, 2020
Zane2point4:
*for sometime now my dash is showing check vsc sign, i dont know if its related with wat you said up there, no check engine light, just check vsc, its a 2010 toyota camry*
Thanks.

It depends on the real cause of the VSC coming up, I will suggest a proper diagnosis first, so we don't start guess work.

1 Like

Re: Mechanic Roundtable by AbujaNigeria(m): 4:06pm On Jun 02, 2020
Blackbishop:


The Code P042X deals with the exhaust system ranging from Catalyst converter to Your Oxygen sensors. So if the code you are having is just the P0420 then try out the cheap ones first, change O2 sensor and that should solve the case.

For more you can get in touch with me
08055347947

Appreciate your kind response.
Please how much can I get a reliable 02 sensor from you?

Getting from you will give me a peace of mind.
Re: Mechanic Roundtable by Slickleo: 4:53pm On Jun 02, 2020
Good day all I have successfully bought 2009 Honda Civic Asian spec with 134595km. kindly assist me with advice, the previous owner uses Mobil xhp 20w50, can I switch to 5w30 fully synthetic or d made in Nigeria Mobil 5w30. Thanks

Re: Mechanic Roundtable by Blackbishop(m): 6:55pm On Jun 02, 2020
AbujaNigeria:


Appreciate your kind response.
Please how much can I get a reliable 02 sensor from you?

Getting from you will give me a peace of mind.

For obvious reasons pls chat me up
08055347947
Re: Mechanic Roundtable by Blackbishop(m): 6:58pm On Jun 02, 2020
Slickleo:
Good day all I have successfully bought 2009 Honda Civic Asian spec with 134595km. kindly assist me with advice, the previous owner uses Mobil xhp 20w50, can I switch to 5w30 fully synthetic or d made in Nigeria Mobil 5w30. Thanks

Is it foreign used or naija used?
But from your naration it is likely a naija used and I will recommend to you to keep using the Mobile XHP
Re: Mechanic Roundtable by pufframmy: 8:26pm On Jun 02, 2020
i just got a corolla 2001 model i refill the ac and was working fine after 5 days i notice it not cooling again please what may be the problem

1 Like

Re: Mechanic Roundtable by Nobody: 8:26pm On Jun 02, 2020
Goodday... please my Peugeot 406(manual) rev high a bit, the needle stick keeps fluctuating around the 1rpm_mark and also switch off if idle for 2 to 3 minutes but it restarts fine if I turn the ignition..and if it's to climb a slope it sometimes trip off but restarts fine again when I turn the ignition and the engine jerks sometimes...please engineers what is the reason behind this sudden change....note:it's an XU engine.
Re: Mechanic Roundtable by Slickleo: 8:32pm On Jun 02, 2020
Blackbishop:


Is it foreign used or naija used?
But from your naration it is likely a naija used and I will recommend to you to keep using the Mobile XHP

Thanks
Re: Mechanic Roundtable by MOTIONTECH(m): 1:33am On Jun 03, 2020
olawale360:
I have some issues with my RX 300 last month. Whenever I'm driving and the engine becomes hot, I do hear a sound like a ticking sound which makes it difficult to move.The temperature is a little bit above average. I ran a diagnosis and I was told to replace the two knock sensor and two 02 sensors. He said each sensors cost 7.5k each (30k). Last week a friend heard the sound and told me he had a similar issue with his Lexus too. His mechanic told me its a faulty thermostat and it has to be removed and connected the two fans directly, so it can start cooling the engine whenever I start the car. The car is working fine now, no more sound, moves very well and the temperature is back to normal.

I hope there won't be implications for the changes made? Thanks
Removing thormostat and connecting fan direct.......wow......please correct the error and go for a proper fix.
Re: Mechanic Roundtable by Billiebaba(m): 5:43am On Jun 03, 2020
olawale360:
I have some issues with my RX 300 last month. Whenever I'm driving and the engine becomes hot, I do hear a sound like a ticking sound which makes it difficult to move.The temperature is a little bit above average. I ran a diagnosis and I was told to replace the two knock sensor and two 02 sensors. He said each sensors cost 7.5k each (30k). Last week a friend heard the sound and told me he had a similar issue with his Lexus too. His mechanic told me its a faulty thermostat and it has to be removed and connected the two fans directly, so it can start cooling the engine whenever I start the car. The car is working fine now, no more sound, moves very well and the temperature is back to normal.

I hope there won't be implications for the changes made? Thanks
That your friend weekend, pls revert what you did to the car and fix the car according to the way the scantool complained
Re: Mechanic Roundtable by Blackbishop(m): 7:01am On Jun 03, 2020
Hyundai Elantra 2008
Naija Registered

The First body
Gear ok
Engine will need to be replaced
AC working fine

Call for Negotiation

B-Automobile Nigeria Limited
08055347947

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