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Questions & Answers
2001 grand prix/ changed out dual climate/fan
Probably the left side air temperature actuator is bad . electric motor that controls opening an closing of temp door in the HVAC case . No the computer doesn't need to be reset .
Temperature Valve Actuator Replacement - Left Side
Remove the left instrument panel insulator. Refer to Instrument Panel Insulator Panel Replacement - Left Side in Instrument Panel, Gauges and Console.
Remove the knee bolster. Refer to Knee Bolster Replacement in Instrument Panel, Gauges and Console.
Disconnect the electrical connector from the left air temperature actuator.
Remove the mounting screws from the left air temperature actuator.
Remove the left air temperature actuator.
on Dec 05, 2017
1999 Grand Prix doors unlock & Interior lights turn on by itself
Click on the link. I tried to get everything on one page, which makes it harder to read. It's been my experience that posting multiple images, only the first image posts, not the others. I didn't see a relay in diagram.
The bcm controls door locks with input from the door lock/unlock switch, I doubt I can trouble shoot that from here. You could check for bcm trouble codes, see if anything comes up? Some of the national brand auto stores will check po codes for free, I don't know about bcm codes?
Could be other issues.
on Jun 30, 2017
2003 Grand Prix hesitation on acceleration
the transmission shifting problem indicates that the vacuum hose and vacuum actuator have a problem as that unit changes ratios when the vacuum is correct
have the battery load tested as the other problem could be low voltage affecting the performance of the ECM
have the fault codes read
also check for a bad cat converter as it may be blocking the exhaust system
on Apr 30, 2017
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