Heater and A/C fan dead

[00GT]

Hi guys. I'm new to the site. So glad I found it. This site is awesome!

I have 2000 Grand Prix GT, 3.8L, 86K miles. No major problems yet other than the whole plenum leak problem which I ended up taking to the dealer. That really should have been a recall.

Anyway, I've had a few different problems recently, so I'll put them in different posts. One is that the fan in my car has stopped working. Doesnt matter if its the heater or the A/C. I read a few old posts regarding electrical problems associated with the level of the fan, such as headlights turning off, or dash lights going bad, etc. but I dont have any of those. Just no fan. I'm wondering if I should try changing the blower resistor, ignition harness or both. Any ideas?

[BNaylor]

Welcome to AF.

If you have no speeds then it could be the blower motor. You can remove it and bench test using 12 volts. If it works then:

If you have a manual HVAC change the blower motor resistor. If digital climate control change the blower motor control module.

Unless you have the other symptoms I would rule out the ignition switch and harness assembly.

[richtazz]

[00GT]

Thanks guys. I have the digital climate control. Richtazz, I saw in other posts that you have access to parts. Could you give me the OEM part #'s and ur prices for both the blower motor and blower motor control module?

[mrbertnoternie]

Don't know if this will help you or confuse you more. I have a 2001 gtp and the blower fan went out this past winter around christmas. I bought the resistor and the blower, since i was sure it was one or the other. So I pulled the blower motor and bench tested it> and nothing. So I just installed the new blower motor and it works great again.

[richtazz]

00 Grand Prix GT W/climate control:
blower module-15-8756 (gm#52479971) $82.16 (dealer retail $164.32)
blower motor - 1st design 15-8950 (gm# 52489322) (oem motor labeled 52481316) $66.23 (dealer $132)
blower motor - 2nd design 15-8940 (gm# 52487088) (oem motor labeled 52487086) $65.64 (dealer $131)

[edbrycem]

Originally Posted by richtazz

00 Grand Prix GT W/climate control:
blower module-15-8756 (gm#52479971) $82.16 (dealer retail $164.32)

Damn!!!! you got some good prices. can you get other parts other then pontiac.? i have a 02 trailblazer haven't had any problems yet other then #1 on blower motor dont work but just wanna keep you in mind for the future.

[richtazz]

Let me know, I'd be glad to help you out.

[edbrycem]

sounds good, thanks.