AC Fan lost levels 1, 2 &3

Tiny
CHEEKY1178
  • MEMBER
  • PONTIAC GRAND AM
I have a 2000 Pontiac Grand Am SE, 60,500 miles. When I bought the car fan level 1 only worked when the car was moving, same with level 2. Levels 3, 4 and 5 were fine. Slowly since then I have been losing levels.1, 2 and 3 no longer work at all. Since I lost level 3 I've been using level 4 and am noticing it's not as strong as it once was. The AC Is cold and the Heat is Hot, no problems there, just the fan.

Any ideas what it could be? I'm pretty handy so if it's something simple like a fuse or a belt I could probably fix that myself or else I'll have to call in a professional before winter comes and I lose any more levels!

THANK YOU!
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Thursday, July 20th, 2006 AT 10:01 AM

2 Replies

Tiny
RAYRAY1
  • MEMBER
I had the same problem with a pontiac grand prix. I took it to the shop and they said that the fan needed replaced. I did it myself. I also have a 1997 pontiac transport montana and 1, 2, 3 are also gone. I'll be replacing that as well.
Hope that helps.
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Monday, July 24th, 2006 AT 3:07 PM
Tiny
MIKEYBDMAN
  • MEMBER
Ok, this is a very common problem with the pontiacs. You have a Blower Motor Resistor that increases the resistance to the motor for each level of fan speed. If you go to High, or speed 5, this eliminates the resistor, and if the fan runs fast, then you know your fan is good. If the fan doesnt run good in the high position, then it may be the fan motor going bad.
However, if the fan runs good in high, then most likely the blower motor resistor is bad.
This is located between the blower motor and the firewall. It is screwed into the airstream of the ducting. All you will see is the connector and two screws. Remove those two and the assemplby will drop out of the duct.
Do not over torque the screws going back in. You can crack the new resistor and then you will be right back where you are now. The screw torque is 9 inch pounds.
All in all, this will not be a hard, nor expensive repair. Might I suggest getting the new parts from www. Gmpartsdirect. Com they will be a lot cheaper than the dealer, but they will be the exact parts the dealer uses.
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Monday, July 24th, 2006 AT 3:20 PM

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