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Blower motor

Tiny
RIDRA007
  • MEMBER
  • 2004 PONTIAC BONNEVILLE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 105,000 MILES
2004 bonneville heater/ac blower works when it wants to. When I turn left it goes real high and when I turn right it slows down. It changes when I hit a bump or will not work at all. Its winter in Minnesota. Please advise on a solution.
Tuesday, December 28th, 2010 AT 5:53 PM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I'd have to check when the problem is ongoing. Intermittent issue can be a pain to find? Check for hvac codes. Some national brand autostores will check obd2 generic codes, don't know about manufacturer specific?

I'd have to check for voltage and ground at the blower motor, when the problem is ongoing.
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Tuesday, December 28th, 2010 AT 8:36 PM
Tiny
ROBAUTO
  • MEMBER
  • 7 POSTS
I had a blower problem on my 02 bonnevile, sometimes it worked and sometimes it did not, banging on the passenger dash would turn it on, there is a good troubleshooting guide in the part selection of blowers in rockauto. Com, it sounds like your problem might be the resistor or the blower itself, but can be wiring. I decided to change my blower and see if that was it. Time will tell. It is a fairly easy job, it is under the passenger dash. Part was inexpensive on line. Resistor is expensive, so make sure it is it before replacing.
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Thursday, December 30th, 2010 AT 2:03 AM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Here is part of wiring diagram on your blower motor, maybe it will help?
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Wednesday, March 2nd, 2011 AT 4:47 PM

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