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Pontiac Aztek Blower Motor and Resistor

15 messages,  Last post on Dec 04, 2007 at 5:48 AM

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What is this discussion about? Pontiac Aztek, Heating / Cooling, Electrical, SUV


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#1 of 15
2003 Aztek Blower Motor Intermittently works by jlamson
Nov 19, 2006 (1:03 pm)
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I have a 2003 Aztek. This summer when using the AC, the blower worked sometimes, and sometimes it did not. Now that it is cold out, warm air feels available, but the blower isn't working. When moving in traffic, warm air will gently come out of the upper vents, but not on the floor. Is my motor gone, or could it be something else?
 
Since I'm here, when starting the car, sometimes the ignition switch keeps the starter engaged. When it was under warranty, the dealer said it is operating as designed. Does something need to be lubed or something?
 
Thanks,
 
--Jim
#2 of 15
Re: 2003 Aztek Blower Motor Intermittently works [jlamson] by ray80
Nov 20, 2006 (4:57 am)
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Replying to: jlamson (Nov 19, 2006 1:03 pm)

Hhmm could be a number of things. First does the sound change at all when changing fan speeds, or at some point did the lower speeds seem to stop working first? If so it may be the blower motor resister assembly. Simple things to check would be the cabin air filter (if equiped) behind a door and panel cover in back of glove box (check for debris there also) and make sure cowl under hood near lower part of windshield isn't clogged with leaves or anything.
#3 of 15
Re: 2003 Aztek Blower Motor Intermittently works [ray80] by jlamson
Nov 20, 2006 (5:18 am)
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Replying to: ray80 (Nov 20, 2006 4:57 am)

Thank-you for your reply. I opened the 2 covers for the cabin filter and there is nothing behind them. The cowl under the hood is clear. The blower does not do anything at any setting, but the lights give the appearance as though it works, so I think the controls are okay.
 
Last night I first just slapped the blower motor trim panel and the blower came to life. So then I removed the blower motor trim panel, and pulled the power plug. I noticed that one of the contacts appears burnt. I plugged/unplugged several times to clean it up a bit, and will go out today to try and find a new replacement plug ... but I'm concerned as to why it's burnt in the first place. Any ideas?
 
Thanks, --Jim
#4 of 15
Re: 2003 Aztek Blower Motor Intermittently works [jlamson] by ray80
Nov 20, 2006 (5:39 am)
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Replying to: jlamson (Nov 20, 2006 5:18 am)

I think the burnt/welded look might imply a loose connection that was arcing (short). It may have come from factory that way, or perhaps somewhere along the line something was worked on and created a bad connection. You might want to consider replacing both sides of the connection to ensure there is a tight/clean fitment.
#5 of 15
Re: 2003 Aztek Blower Motor Intermittently works [ray80] by jlamson
Nov 20, 2006 (5:47 am)
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Replying to: ray80 (Nov 20, 2006 5:39 am)

Do you know if the other end of the plug hard-mounted to the motor, or if its on a wiring harness attached to the motor?
 
--Jim
#6 of 15
Re: 2003 Aztek Blower Motor Intermittently works [jlamson] by ray80
Nov 20, 2006 (5:49 am)
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Replying to: jlamson (Nov 20, 2006 5:47 am)

That I don't know, fortunately for me I haven't had to go there (yet anyway )
#7 of 15
Re: 2003 Aztek Blower Motor Intermittently works [ray80] by jlamson
Nov 20, 2006 (5:54 am)
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Replying to: ray80 (Nov 20, 2006 5:49 am)

I'll give it a shot, will post back when I'm done.
 
--Jim
#8 of 15
Re: 2003 Aztek Blower Motor Intermittently works [jlamson] by elkein
Nov 20, 2006 (6:24 pm)
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Replying to: jlamson (Nov 19, 2006 1:03 pm)

Tell your passengers not to kick the wiring harness...
I've seen this before in other vehicles.
Of course better protection on some of those plugs would help too.
#10 of 15
Aztek Blower motor resistor by jkporcupine
Jun 29, 2007 (11:26 am)
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Replying to: elkein (Nov 20, 2006 6:24 pm)

Ive been reading about the blower fan issue that appears to be common with azteks.
I have the same issue many of you have. The fan settings are failing one by one.
now only 4 and 5 work.
From my understanding it is a blower resistor assembly that is causing this.
My question is.
How do i get to this part? Ive heard its in a tight spot but is accessible, but where is it? I can get a new part for $27 but as with everything my mechanic wants $400 to replace it.
How do i do this my self?
Thanks

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