what causes the fan motor to fluctuate while driving? my heater works so does the a/c

Robert Wolfe
135

Asked by Robert Mar 13, 2013 at 01:19 AM about the 2002 Pontiac Grand Prix GT Coupe

Question type: Maintenance & Repair

2002 Pontiac Grand Prix GT 2dr 3.8L 239k

5 Answers

judge_roy
Not Active

well there is a little goodie called the 'fan clutch' in front of the radiator, in fact is an additional fan...sorta, speeds up when the moto is hot, and cools down when the motor is cool. It's job is to vary with temperature.

Best Answer
tenspeed
67,265

If you are asking about the blower fan motor for the HVAC system, it means that the brushes are too short and the motor needs to be replaced. It's a very easy DIY job on most GM vehicles. Three small screws and a electrical connector.

1 out of 1 people think this is helpful.
Best Answer
judge_roy
Not Active

oops-

Best Answer
tenspeed
67,265

I see green! Happy St Patrick's Day!

judge_roy
Not Active

wow. points!!!

Your Answer

Add photo

Related Questions

Grand Prix
Looking for a Used Grand Prix in your area?
CarGurus has 3,989 nationwide Grand Prix listings starting at $850.
ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 2,270
#2 Tom Demyan
Tom Demyan
Reputation 1,700
#3 John Saffrahn
John Saffrahn
Reputation 1,150
View All

Related Models For Sale

Used Chevrolet Impala"
1,275 Great Deals out of 55,811 listings starting at $1,000
Used Pontiac Bonneville"
19 Great Deals out of 747 listings starting at $1,300
Used Pontiac Grand Am"
19 Great Deals out of 1,924 listings starting at $1,500
Used Ford Mustang"
613 Great Deals out of 33,963 listings starting at $1,595
Used Chevrolet Monte Carlo"
46 Great Deals out of 1,793 listings starting at $1,495
Used Chevrolet Malibu"
942 Great Deals out of 58,212 listings starting at $1,850
Used Chevrolet Camaro"
480 Great Deals out of 33,889 listings starting at $1,400
Used Nissan Altima"
1,318 Great Deals out of 81,244 listings starting at $1,298
Used Honda Accord"
1,112 Great Deals out of 69,484 listings starting at $1,100
Used Nissan Maxima"
411 Great Deals out of 15,795 listings starting at $1,800

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
15 Great Deals out of 550 listings starting at $3,950
2007 Pontiac Grand Prix For Sale
20 Great Deals out of 516 listings starting at $3,886
2006 Pontiac Grand Prix For Sale
25 Great Deals out of 599 listings starting at $1,993
2005 Pontiac Grand Prix For Sale
22 Great Deals out of 482 listings starting at $1,790
2004 Pontiac Grand Prix For Sale
31 Great Deals out of 641 listings starting at $850