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1999 Pontiac Grand Am fan heating/cooling speed

Tiny
CASOTTO2003
  • MEMBER
  • 1999 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 135,000 MILES
Hello,
becouse the fan selector speed switch works only on speed 3-4 and 5(leeving speed 1 and 2 inoperative), I beleive that one or more of the resistor in the "resistor-bank iis either burned or opened.
Would you kindly direct me to the location of the resistor-bank?
. And if I am wrong what other could cause the malfuncioning of the "speed control swith"?
Thank-you
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Friday, March 28th, 2008 AT 3:51 PM

3 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Yes the problem is a burned up resistor. The new resister is redesigned to be alot more resistant to heat. Its located under passengers side of dash right next to the blower motor
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Friday, March 28th, 2008 AT 3:54 PM
Tiny
CASOTTO2003
  • MEMBER
  • 2 POSTS
I have already checked behind the glove compartment by the blower fan with no success!
Could you be more specific?
Thank you again.
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Friday, March 28th, 2008 AT 4:05 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Under dash. Close to firewall. Its the only thing that has wires going to it. Its held in by 3 little screws. Approx 6 inches from the passenger side in
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Friday, March 28th, 2008 AT 4:53 PM

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