Car shakes crazy when aircon on

**tangyoonee** · 13-01-2010 02:10 PM

Hi.
Does anyone know why the car shakes when the aircon's on?
Is it because of engine conversion?
can it be fixed?
Let me know if someone can fix it
cheers

**flipfire** · 13-01-2010 02:12 PM

Does it happen on idle? cause aircon eats up juice causing your idle to drop and get shakey.

Idle might be too low or your alternator is too weak

**Chi** · 13-01-2010 02:21 PM

Are you running aftermarket engine mounts or an Engine torque damper or a solid 3 point strut bar?

What type of engine conversion?

**tangyoonee** · 13-01-2010 02:29 PM

Originally Posted by flipfire

Does it happen on idle? cause aircon eats up juice causing your idle to drop and get shakey.

Idle might be too low or your alternator is too weak

yeh it shakes on idle not when going. Idle seems not low. maybe the alternator.
thanks.

**tangyoonee** · 13-01-2010 02:31 PM

Originally Posted by Chi

Are you running aftermarket engine mounts or an Engine torque damper or a solid 3 point strut bar?

What type of engine conversion?

yes aftermarket engine mounts.
it's H23a Vtec from Accord 4WD Wagon.
cheers

**Chi** · 13-01-2010 02:37 PM

Its normal then if you have stiffer mounts, all the engine vibartion and movement is transferred through the chasis/cabin/steering wheel.

It particularly gets worse with the A/C on.

**flipfire** · 13-01-2010 03:08 PM

Originally Posted by tangyoonee

yeh it shakes on idle not when going. Idle seems not low. maybe the alternator.
thanks.

Should idle at 700-800rpms.. see if it dips down 500rpms when your put the aircon on (make sure this is after youve driven for at least 10 mins and the car is warmed up)

**Zilli** · 13-01-2010 03:10 PM

your issue is your engine mounts, nothing else... the change in RPM, and the vibrations that are resultant are being transferred through your chassis as Chi said earlier...