Mechanics

CAR SHAKES

2003 Ford Focus • 2.0L 4 cylinder FWD Automatic • 106,000 miles

Car shakes when the A.C is turn on.
Avatar
Hector bravo
May 24, 2014.




The AC adds additional load to the engine so some vibration is expected. Check your belt tension and operation and the quality of your motor mounts. Fatigued motor mounts will not absorb as much engine vibration.
AD

Wrenchtech
May 24, 2014.
Thanks. But I just changed the motor mounts. Serpentine belt is fairly new. Belt tensioner is new. High speed relay is new, for the A. C. Fans. Could there be some another problem? Anything that will help me, will be appreciated.

Tiny
Hector bravo
May 24, 2014.
It could be the IAC isn't correcting the idle sufficiently or it could just be normal from the increased load.

Wrenchtech
May 24, 2014.
Thank you. The problem was the passenger motor mount and the transmission mount. Gracias.

Tiny
Hector bravo
May 25, 2014.

AD