₦airaland Forum

kelvinmnet:
I use a 2007 Accord (DC) and I have same issue. My friend uses same car and has same issue.
Once the ac is ON, you'll feel the vibration and heaviness of the vehicle.

I asked a couple of AC technicians at ladipo and other places, they explained that the manual compressor is the cause.
Manual compressors gets very cold immediately you turn them ON but the automatic compressor takes time to build up till it becomes very cold

My previous car, Camry muscle had an automatic compressor. I didn't feel the vibration but the ac takes time to get cold but once cold....its very cold.

vivalavida:
How many fans does your car have? Can u confirm if they are all working well? There was a time I didn't know one of my fan has spoilt and I was experiencing all you have been experiencing. I only use my Ac on the move. If I get to a stop, I have to switch off because the RPM drops, the AC stops cooling and I get vibrations from the engine bay. I visited my mechanic and complained. They just switched on the car and watched it. One fan didn't come on. I changed it that day and that issue stopped. So you have to also think in that direction.

berbs112:
In the past, I experienced issue relating to RPM dropping down to around 500 and this causes serious vibration. Throttle body cleaned etc it'll only improve and go back to same in days. I will like you to confirm if you have thermostat in your car because When I finally returned Thermostat to vehicle, RPM became perfect ever since.


I was working on replacing the throttle body but during discussion in a group that I belong about importance of thermostat in cars as against what Kazeems claim, I decided to install thermostat in my car, that was the best decision I ever made regarding that car.

Macmilla:
Scan and fix all codes if any
Clean your throttle body
Do idle relearn
If all these fails, then your car needs further investigation. Don't forget your alternator, ac system and power steering system when doing the further investigation.
Btw, which car is this?
Do you have full power or is your engine sluggish?

kelvinmnet:
I think this can be adjusted using an OBD scanner.
Try this and let's know.

I will check mine and share the pix. I think its same thing with yours.

kelvinmnet:
Omo na wa ooo
Na only God fit help us here ooo
But if the rpm drops and the car still works fine then ignore it.
Car issues cannot be completely fixed.

kelvinmnet:
I may be wrong o but I feel your AC compressor is the issue.
Does your car emit black smoke? You can check the tail pipe.
When I changed my engine at Oyingbo, the mechanic washed the manifold with petrol and also the ejector mouth and this helped. My car runs on a little above 500rpm on idle with ac ON and it functions well.

hecker47:
did you finally get it?

Macmilla:
Chai! Bro, all Hondas (and most others) that use drive-by-wire do not use IAC valve. The computer controls the idle through the throttle actuator. So a separate IAC valve is not needed.

Conner44:
At the bolded above concerning your tensioner, I doubt its issues will contribute as much vibration as having each of the other 4 options I listed above.

Harmonic balancer issues can arise if you've ever had a timing chain work done in the past.

Engine mounts have China and tokumbo. Using China mounts in strategic locations will always give vibrations. Use proper original mounts always to eliminate this. The mounts that cause vibrations on idle are mostly the engine side ones, the mounts that cause thumps on gear changes are mostly the transmission side ones.

If your throttle body is electronic I'd advise you just replace it. Especially if you're sure of all other options being ticked off.

repair the stripped tensioner soon to avoid getting broken bolts along your other serpentine belt driven components

RayCharles:
Thank you so much Sir. God bless you

RayCharles:
No. I didn't test the sensor, it was sent from Lagos to Kaduna. I just assumed since it was new, it would work.

Thank you so much for you help Sir. I really appreciate. I will make all necessary checks before installing the thermostat.

Can I please get the number of your plug for the 02 sensor @ Apo?

cardoctor:
Are your exhaust catalysts still on the car?

RayCharles:
Sadly, mine is the 2.4L variant. I found out my thermostat was taken out and the fan was connected directly to work with the ignition. I think I should fix that first. Was the intake manifold filter bad or missing?
Can you please direct me or link me to where you purchased the 02 sensor, the one I got doesn't work.

Thank you boss

RayCharles:
Hello OP.

Can we please get a detailed breakdown of all the steps taken to achieve this? I have a similar car, it consumes a lot of fuel. I recently changed my 02 sensor but it still doesn't reflect on the OBD II scanner.

Things I changed:
Air Filter
02 Sensor
Spark Plug

Is it possible for the 02 sensor to still be working even while the scanner doesn't show?

PS: I only changed the upstream 02 sensor (But sensors weren't working when I scanned).

tunjijones:
She no go get work and non virgin

Conner44:
At the bolded above concerning your tensioner, I doubt its issues will contribute as much vibration as having each of the other 4 options I listed above.

Harmonic balancer issues can arise if you've ever had a timing chain work done in the past.

Engine mounts have China and tokumbo. Using China mounts in strategic locations will always give vibrations. Use proper original mounts always to eliminate this. The mounts that cause vibrations on idle are mostly the engine side ones, the mounts that cause thumps on gear changes are mostly the transmission side ones.

If your throttle body is electronic I'd advise you just replace it. Especially if you're sure of all other options being ticked off.

Conner44:
Oga your vibrations can come from either one of the following 4 places in scale of most recurrent

1. Bad engine mounts

2. Bad IACV

3. Bad solenoid that directs vacuum to the associated engine mount that is designed to reduce vibration

4. Bad harmonic balancer timing in your engine sump

Check which it is and fix

Cc kelvinmnet

woodrow:
Since the thermostat was removed and bypassed, let's assume the recommended engine oil was not also used by the previous owner and as you have switched to the recommended engine oil, try pay attention to notice if it shorts oil. Check in a week or 2 if it doesn't reduce, continue using the recommended oil. Enjoy.

Conner44:
Oga your vibrations can come from either one of the following 4 places in scale of most recurrent

1. Bad engine mounts

2. Bad IACV

3. Bad solenoid that directs vacuum to the associated engine mount that is designed to reduce vibration

4. Bad harmonic balancer timing in your engine sump

Check which it is and fix

Cc kelvinmnet

kelvinmnet:
I use a 2007 Accord (DC) and I have same issue. My friend uses same car and has same issue.
Once the ac is ON, you'll feel the vibration and heaviness of the vehicle.

I asked a couple of AC technicians at ladipo and other places, they explained that the manual compressor is the cause.
Manual compressors gets very cold immediately you turn them ON but the automatic compressor takes time to build up till it becomes very cold

My previous car, Camry muscle had an automatic compressor. I didn't feel the vibration but the ac takes time to get cold but once cold....its very cold.

kelvinmnet:
Then your AC compressor may be the culprit, its probably a manual compressor.
I am able to analyze this because I use a 2007 accord and same thing happens.

kelvinmnet:
Hello, you may need to check you engine mounts again since it only vibrates on Reverse especially the small mounts beneath the gear.
Also, your AC compressor may be a manual compressor which may cause your car to vibrate when turned ON.

Turn off your AC and check again...engage the reverse and drive gear and check if it still vibrates.

Kewtt:
Write in English language.

Bongadu:
Post pics