2003 Ford Focus car shakes

2003 FORD FOCUS
106,000 MILES • 2.0L • 4 CYL • FWD • AUTOMATIC
Avatar
HECTOR BRAVO
  • MEMBER
  • 3 POSTS
car shakes when the A.C is turn on.
May 24, 2014 at 4:35 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
WRENCHTECH
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 20,761 POSTS
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.
May 24, 2014 at 4:53 PM
Advertisement
Avatar
HECTOR BRAVO
  • MEMBER
  • 3 POSTS
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.
May 24, 2014 at 4:58 PM
Avatar
WRENCHTECH
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 20,761 POSTS
It could be the IAC isn't correcting the idle sufficiently or it could just be normal from the increased load.
May 24, 2014 at 5:02 PM
Avatar
HECTOR BRAVO
  • MEMBER
  • 3 POSTS
thank you. the problem was the passenger motor mount and the transmission mount. Gracias.
May 25, 2014 at 6:09 PM