AC not working

1985 CADILLAC FLEETWOOD
45,500 MILES
Avatar
BILLSWEETING
  • MEMBER
  • 1 POST
enter your question...A.C. CLUTCH DOES NOT ENGAGE ,THERE IS ELECTRIC TO IT,CAR ALSO HAS CLIMATE CONTROL
Jun 1, 2011 at 10:39 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
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
Check for both power and ground arriving at the clutch. If you have both, then you likely have a bad clutch.
Jun 1, 2011 at 11:11 PM
Advertisement
Avatar
CADIEMAN
  • CAR REPAIR CONTRIBUTOR
  • 3,544 POSTS
there is a pressure sensor on the high side line going to the evaporator.theirs a 2 wire round sensor.jump across that sensor to see if the clutch engauges. poss. bad sensor or wrong pressures.
Jun 2, 2011 at 2:51 AM
Avatar
WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
He already stated he has power to the compressor. Lets verify whether that is true or not before worrying about any of the many switches or sensors that may not even be an issue.
Jun 2, 2011 at 11:23 AM
Avatar
WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
Also, is this a FWD Fleetwood or a Fleetwood Brougham? Auto Temp Control or manual?
Jun 2, 2011 at 11:24 AM
Avatar
CADIEMAN
  • CAR REPAIR CONTRIBUTOR
  • 3,544 POSTS
85 is fwd wrenchtech.the programer applys a ground for the clutch and the blower motor.he needs to test the ground. I would use a test light and jumper wire ground one end and hook the other end to the test light.then reground the neg. wire to test.the clutch should engage.
Jun 2, 2011 at 5:25 PM
Avatar
WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
No, there was a RWD Brougham made from through 88 and he needs to perform the tests I asked him to first before he gets totally confused.
Jun 2, 2011 at 6:16 PM