Mechanics

'89 DCOUPE (FWD) BLOWER STAYS ON AFTER ENGINE SHUT OFF.

1989 Cadillac Fleetwood • V8 FWD Automatic • 19,856 miles

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?
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Aneilljr
July 26, 2011.




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


Docfixit
Jul 26, 2011.
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)?
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Tiny
Aneilljr
Jul 26, 2011.
Open hood blower box on bulkhead


Docfixit
Jul 26, 2011.

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