|
Post by jt723 on May 17, 2004 11:25:20 GMT -6
Hey All,
I'm a new member trying to get any information on a blower motor problem that I'm having with a 98 Aurora. I like my car; however, this problem of getting the blower to work when it feels like it is very aggrevating. Any help would be greatly appreciated.
JT723
|
|
|
Post by JimW on May 17, 2004 12:50:30 GMT -6
Maybe you can describe some of the symptoms for us? Does it not blow hot or cold?, are the speeds not correct? To loud? Cuts out? Could be a host of things from a bad motor, bad wiring or your ECC is acting up.. Let us know
|
|
|
Post by jt723 on May 17, 2004 13:07:55 GMT -6
Thanks for replying so soon, and sorry the previous message was so vague.
The blower motor will not come on with the fan controls set on high and the temperature range set at either the high or low limit. All of sudden the blower will kick on high, stay on for a few minutes, cut out, come back on (blows warm or cold air depending on temperature setting), cut out, and then stay off. The number of cycles will vary, and there's no rhyme or reason to when it comes on and how long it stays on. Does this help??
How can I diagnose the problem without spending an arm or leg at the service center?
JT723
|
|
|
Post by JimW on May 17, 2004 15:21:42 GMT -6
From what you're describing it sounds like its a wiring issue. I say that because, its intermittant, no real pattern to it at all. We know for sure that its blowing, we know for sure the air con works. It could be interuption of the power to the blower motor, unless someone else wants to suggest something. For the record, I have not experienced this problem
|
|
|
Post by Aurora95 on Jul 30, 2004 21:38:26 GMT -6
Thought I would share my recent repair of an inoperative blower motor on my 95. The heater/air blower is controlled by a blower control module located very close to the blower motor inside on the passenger side (under the dash behind a plastic panel). Mine would cut in and out and then I would smell burning plastic. Upon removal of the module I found the red power lead pin had corroded off the module. Seeing as the connector is sealed and inside the car I suspect galvanic corrosion, so many cars may see this very same problem. The dealer wanted $110 for a new module so I ground away the epoxy at the corroded pin on the module and soldered on a new lead about an inch long. I then cut off the power connector which had become useless because of the old pin firmly corroded in the old connector and solder spliced and taped the connection. Works like a charm and just completed a 1000 mile trip with continuous use. Hope this info helps someone out.
|
|
|
Post by jt723 on Aug 20, 2004 11:13:52 GMT -6
Aurora95 or others,
I removed the referenced cover and see several connections that appear to be plugged into various sized modules. Can someone please provide a bit more of a description of what the blower control module looks like (i.e., size and shape)? Any help would be appreciated.
JT723
|
|
|
Post by Aurora95 on Aug 21, 2004 8:35:30 GMT -6
The bulk of the blower control module is not visible, it is actually inside the air duct. Look on the blower motor side towards the firewall. The plugs connected to the module (on my 95) have black, red, purple and a gray/black wire. The red and black are larger gauge wires. Like I said earlier, on my car the red (power feed) connection had corroded and caused the power to cut out to the module. The module is held in by two screws and you pull it straight out when they are removed. The module has a large aluminum heat sink and to cool it they put it into the air flow of the system. Mine got so bad you could smell the electrical connection arcing when the blower would cut in, the fumes were sucked into the air duct and blown out the a/c vents...phooey! My repair outlined above in this thread is still working solid! Good luck & keep us posted.
|
|
|
Post by R4D30N on Aug 21, 2004 15:36:38 GMT -6
Aurora95 or others, I removed the referenced cover and see several connections that appear to be plugged into various sized modules. Can someone please provide a bit more of a description of what the blower control module looks like (i.e., size and shape)? Any help would be appreciated. JT723 when i get a minute i got the schematics in my glovebox, i could probably scan them later tonight. (if anyone needs schematics, i have the whole car )
|
|
|
Post by Aurora95 on Aug 21, 2004 20:38:14 GMT -6
I found this photo of a typical GM blower control module on a Cadillac board. It looks almost the same as the one in the Aurora. Gives you an idea of the size, although all that's visible are the outer plugs when your looking for it.
|
|
|
Post by R4D30N on Aug 22, 2004 19:11:49 GMT -6
thats just a picture of a blower motor resistor. (module)
passenger side, remove bottom panel, (under hte glvoe compartment), then turn the controls on and while the motor is not spinning, tap it lightly with a hammer or wrench to see if it kicks on, and if it does, then oyu got a bad motor. try jerking lightly on some wires while up there too and see what happens
|
|
|
Post by jt723 on Aug 23, 2004 7:09:12 GMT -6
Great site - Thanks to all for the support.......
Hopefully, the ole' hammer repair will work.
JT
|
|