Question about 2005 Pontiac Aztek

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2004 pontiac aztek cooling fans not working

The fans on my aztek are not kicking on. I hot wired them so I know they work and I replaced the cooling sensor. The fuses are good so is it the relays or the thermostat???

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  • rockspenguin Sep 17, 2008

    my engine fans will not work in my 2004 pontiac aztec. i have hot wired them and they work. how do i fix it?

  • champaine26 Feb 11, 2009

    my cooling fans will not come on i changed my sensor and relays checked fuses

  • ddtedd May 18, 2009

    Cooling fans on 2004 Aztek will not come on

  • Anonymous Mar 26, 2014

    What fuse would you get so the heating and cooling will work

  • Anonymous Apr 01, 2014

    I am wondering if it is unplugged from under the hood

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  • 74 Answers

Relays control fans high and low. does fan come on with a/c on?hot wiring only will create more expensive problems in future!!!!! 2004 not 84

Posted on Aug 26, 2008

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And why do you think this is a problem, they do not run anymore than what is required to cool the engine, as it gets hotter the fans will run longer at a higher speed, but you will seldom see that except on very hot days.

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there are 4 steps to check and you've mentioned all but one the relay which cuts the fan on'off. At an elec shop you check in this order power to fuse block, fuse & output side, temp sensor, relay, and fan motors. Get a new relay

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Cooling Fans


Hello dc8jimmy...did you check the voltage to the fans? The Aztek is a known overheater...Run a diagnostic scan to see if you have a cooling fan relay circuit open short. Will be easier to correct the problem when you know where to look. I think Haynes has a publication on the Aztek that covers the 01-05 year models.
Good luck...i hope this helps.

May 17, 2009 | 2001 Pontiac Aztek

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