'89 Cadillac Fleetwood dCoupe (FWD) Blower stays on after engine shut off.

1989 CADILLAC FLEETWOOD
19,856 MILES • V8 • FWD • AUTOMATIC
Avatar
ANEILLJR
  • MEMBER
  • 2 POSTS
I have ordered from RockAuto a Blower Motor Resistor Module for my '89 Cadillac Fleetwood Coupe (FWD). The blower stays on after vehicle shutoff intermittently but more often when ambient is hot. Does module mount from engine side of the firewall or will I have to remove the dash? How can the problem be intermittent? Is there a possibility that the Power Control Module or Relay Assembly might be at fault? Should I get BCM codes set for these failures?

Also, the compressor does not engage on demand or disengages when demand is present intermittently. Any ideas other than add Freon?
Jul 26, 2011 at 3:40 PM
Advertisement
Avatar
DOCFIXIT
  • CERTIFIED EXPERT
  • 18,828 POSTS
Power control module faulty also need to replace blower motor or module will fail again. Very common problem. And yes check freon charge and for leak
Image (Click to enlarge)
Attached Media
Jul 26, 2011 at 3:45 PM
Avatar
ANEILLJR
  • MEMBER
  • 2 POSTS
Thank you. From which side of the firewall do I access the Blower Motor Resistor module to change it on my '89 Fleetwood Coupe (FWD)?
Jul 26, 2011 at 4:04 PM
Advertisement
Avatar
DOCFIXIT
  • CERTIFIED EXPERT
  • 18,828 POSTS
Open hood blower box on bulkhead
Jul 26, 2011 at 4:11 PM