hi ,guys,
i find my g coue ( 65000 k) have more stronger steering vibration when A/C is on . it gets worse when the day get cold. if i turn off the A/C, then ,there is np at all. anyone can give me some suggestions.

 

steering vibration is usually a sign of wheels out of balance. wierd that you only notice it when the A/C is on...

 

yes, it always happen in idle.

 

help?

 

If the vibration in the steering wheel get worse with an increase in speed your tires need balancing. Speed + more vibration = wheel balance bad.

If it vibrates at idle something may be wrong with your power steering. Maybe a loose pulley or broken tensioner since loading the belt by turning on the ac changes things.

I don't understand whats happening, so with AC on there is more vibration; is it the engine that is vibrating, shaking the whole car or is it just the steering wheel ?

gotta feed us some more info.

 

it is just the steering wheel is shaking

 

if its under warranty take it to the dealer thats why you have a warranty

 

at idle?

have you looked under the hood while your car is at idle and the wheel is vibrating?

 

Very weird, so when parked at idle there is a vibration threw the steering wheel, If so I would look at the power steering system, also check the power steering fluid level.

 

If at idle it can be ***allot*** of things. Do you have an engine damper. Could be dirty injectors or carbon build up. Put a can of Chevron Tectron 20 Gallon treatment in along with a dry gas. Could be a dirty sensor such as the MAF or faulty or damaged O2 sensor [did you put in an aftermarket exhaust or cats]. Even a dirty gas filter, air filter or plugs could cause it. You may have to have someone diagnose it, but first I would start with a good cleaner.