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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Pontiac Technician
Category: Pontiac
Satisfied Customers: 2373
Experience:  GM Grand Master Technician 2007. 14 years experience.
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I have a 2003 pontiac grand prix the heater blower will not

Customer Question

i have a 2003 pontiac grand prix the heater blower will not run on settings 1-4 but will on 5 after some hesitation, we replaced blower fan and resistor located behind the fan and still not working, on setting 5 blower fan running i have running lights however when turned to lower setting fan goes off and so does the running lights. can you please help me
Submitted: 4 months ago.
Category: Pontiac
Expert:  david craig replied 4 months ago.

hi i m dave, let me get you a wiring print of the circuit so we can figure this one out, im stumped as to why the resistor did not fix this issue. try wiggling the wiring for the resistors connector and see if it affects things

Expert:  david craig replied 4 months ago.

the running light problem is not even close to being associated with the fan control. 2 separate issues even though it seems like it not, unless there are wires behing the instrument panel shorted together.

Expert:  Chad Farhat replied 4 months ago.

Hi, I'm Chad ,Welcome To JustAnswer, I'm reviewing your question and I will be be posting a replay ASAP

Expert:  Chad Farhat replied 4 months ago.

unplug the drl headlight switch , does your blower works normal

Please let me know

Thank You

Chad Farhat

ASE Certfied Technician

Expert:  Chad Farhat replied 4 months ago.

what is the mileage on vehicle ?

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