I have an potiac grand prix gt,, 2001 model,, Heater/defrost


Asked by Oct 20, 2013 at 06:58 PM about the 2001 Pontiac Grand Prix GT

Question type: Maintenance & Repair

I replaced the resistor pack  for the fan ,, But I still only have the maximum speed which is #5,, all other speeds #1 through #4,, have no effect on it,, Is there any other components I can change out,,I did test the switch,, ,, < used another switch from another grand prix,, No effect just the maximum speed ,, ,, Also the rear window defogger will not stay on are the two related in some way?

5 Answers


Check the fuses in the glove box. Sounds like one is blown. High blower speed is fused seperatly from the others. HTH. -Jim

1 people found this helpful.

I have checked the fuse ,, which is 30 Amp,, Its fine,, I even put a new one in,, nothing changed,, One thing to note ,, when I turn the fan speed control to the #1 setting,, the day light running lights( headlights), go out,, its the same for the other settings till I get to #5 setting ,, it comes back on,, Whats going on?

1 people found this helpful.

For the daytime running lights to go out it sounds like a bad ground. Unfortunately I don't have a wiring diagram for your car. Have you recently replaced the radio? Since the climate controls are just below the radio I'm guessing that's where you should look first. HTH. - Jim

1 people found this helpful.
Best Answer Mark helpful

Thanks ,, i'll check it out,, and No I havn't replaced the radio.. I did have it out looking for any relays behind it,, which I did find behind the glove box

1 people found this helpful.

You're welcome. Glad to help. Thank you for the best answer click. -Jim

1 people found this helpful.

Your Answer

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 1,805 nationwide Grand Prix listings starting at $2,008.


Pontiac Grand Prix Experts

  • #1
  • #2
    Tom Demyan
  • #3
View All

Related Models For Sale

Used Chevrolet Impala
397 Great Deals out of 25,595 listings starting at $799
Used Chevrolet Monte Carlo
3 Great Deals out of 937 listings starting at $3,900
Used Pontiac Bonneville
316 listings starting at $3,395
Used Chevrolet Camaro
224 Great Deals out of 28,922 listings starting at $3,900
Used Ford Mustang
270 Great Deals out of 37,082 listings starting at $2,150
Used Pontiac Grand Am
723 listings starting at $1,700
Used Chevrolet Malibu
480 Great Deals out of 49,315 listings starting at $2,000
Used Pontiac Firebird
7 Great Deals out of 674 listings starting at $3,695
Used Nissan Maxima
200 Great Deals out of 17,499 listings starting at $1,900

Used Cars For Sale

2007 Pontiac Grand Prix GT For Sale
42 listings starting at $2,725

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.