blower motor resistor

[shuff2249]

1995 ssei. Heater blower not working. Replaced the blower motor. Still not working. Where can i find the resistor?

[imidazol97]

It's in the tunnel where the blower motor forces the air toward the heater core. On top and under the relay center. The relay center has a couple of bolts in middle holding it tight and can be pushed up to gain some clearance.

Whether you have a blower control module for th e automatic temperature control or resistors, same place.

For the manual system there is a relay in the relay center as well. I'm not sure how it plays into the wiring diagram for 95 on a Pontiac. The Buick system had two relays on the manual blower and those were in the relay center that holds the major fuses and relays above the blower motor/tunnel.

[dmitchel50]

I have a similar problem. When the car sits out in the cold, the blower won't work. After the car heats up the blower comes on and everything seems to work fine. If the car sits in the garage overnight and stays warm, no problem. What would cause that problem? Thanks!

[Bugsi]

I have a similar problem. When the car sits out in the cold, the blower won't work. After the car heats up the blower comes on and everything seems to work fine. If the car sits in the garage overnight and stays warm, no problem. What would cause that problem? Thanks!

The brushes wear and the fan motors won't start and goes intermittent. They say you can whack the housing with a broomstick to get it to turn on, but I actually don't recommend that because the plastic cover gets brittle and you can break it by doing that. In any case, the fix for the problem you're having is to just replace the blower motor. It's actually a pretty easy DIY job, provided you can wriggle it out from up against the firewall .

[dmitchel50]

Thanks. I was kind of wondering if the cold might affect the resistor and cause the issue?

[Bugsi]

Thanks. I was kind of wondering if the cold might affect the resistor and cause the issue?

Intermittent blower would not be caused by the resistor pack because the resistor is out of the circuit with the blower motor on high speed. If the resistor pack burns up (and that actually happens), you'll lose one or more low speeds on the blower but still have high speed. (FWIW, the aftermarket resistor packs are a lot beefier than the OEM packs. I've had the OEM resistor packs burn up, but I've never had a replacement (AutoZone) aftermarket pack burn up.

The intermittent blowers I've had in my Bonneville and my wife's former Grand Prix were caused by worn brushes, and replacing the blower motor was the cure each time. The first time I had an intermittent blower I asked about it on this forum and the advice I got was that it's caused by worn brushes on the motor and to replace the blower motor. That advice proved accurate, and worked on both my Bonneville and my wife's former Grand Prix.

Definitely replace blower. There's often advice on this forum to pay more for the OEM Delco unit, but all I've ever been able to find at my parts stores are the aftermarket Siemens models, and those have worked *just fine* for me. Zero problems.

[1998 ssei]

This is what it looks like for the Automatic Climate Control system. The one on the left is the original one I pulled out of my bonny. The one on the right is Autozone brand. Not sure if there is a difference in performance but I didn't notice any difference. Rock Auto sells both styles.
[url][URL=http://s142.photobucket.com/user/castillejarr/media/blowermotorresister.jpg.html][/url][/url]

[Sirius]

...Definitely replace blower. There's often advice on this forum to pay more for the OEM Delco unit...

That's what I did. The Delco box said made in USA, a sticker on the blower said made in Vietnam. Knowing this, if I could turn back the clock I'd purchase an aftermarket unit for 1/2 the price.