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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I have a 03 aztek and the cooling fan is not comeing on when hot changed relays, thermostat is good ,water pump is good changed the coolant temp. senson on thermostat houseing but still no fan . both fans...


Pull the plastic Module plug apart ,Figure out witch is the hot wire to the fan, End the ground wire ,Use a jumper wire to ground it to the body of the car Some where like a bolt going into the body or the engine some where, Take anouther jumper wire end hook it up to the hot wire on the fan .Touch it to the positive terminal on the battery to check if the fan comes on, If it doesn,t the fan motor is shot. They don,t last for ever,

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have you checked to see if the cooling fan is working properly.if not then it will have to be checked to see if its the fan that is no good,wiring,or a relay.there are 2 temp sensors one for the gage/light and one for the computer to know what the engine temp is to alter engine controls and cooling fan operation.

Jun 14, 2011 | 2004 Pontiac Aztek

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Cooling fans on aztek no coming on, ran hot wire to fans and works. checked fuses, jumped wires at temp. sensor and fans ran after shutting ignition off for aprox. 30 seconds, replaced temp. sensor and...


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

Apr 28, 2011 | Pontiac Aztek Cars & Trucks

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My pontiac azteck 2006 is over heating. I know that when i drive the fan is not kicking on, but the ac fan is on. The thing is that i do not know where the thermostate is located to replace it nor the...


Best thing to check is the socket for the fan relay. Find the cooling fan relay in the engine compartment relay box and pull out the relay to interrogate the socket. Use a test light to see if the car is trying to turn on the fan. See my post at http://www.fixya.com/cars/r6022358-relay_check on how to check the relay and socket. The car must be running and hot for this test. If the car is not hot, you can at least test the fan by jumping the relay. Please let me know if you have questions.

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My cooling fan motor isn't turning on my 2004 Pontiac Sunfire. My car is running hot because of this. How can I change the motor myself without spending a tonne of money on a dealership.


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Cooling fans on 04 aztec not working


Their is a sensor screwed into the radiator which sends a signal to the fan relay when the radiator gets hot and activates the fan. If you changed the relay then this is most likely the problem. But it may be the fan. To check remove the plug from the fan and when radiator get's hot check if power is comming through the wire's.

Sep 12, 2009 | 2005 Pontiac Aztek

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Aztek over heating cooling fans not coming on the


temp gauge working proprely?turn on ac both fans should kick on after a few if not replace it

Jun 20, 2009 | 2001 Pontiac Aztek

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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

1 Answer

2004 pontiac grand am


Sorry - which ones? A/C heating or engine cooling fans?

Check fuses to make sure they're still ok. Remove the ones for the fans - and replace to clear any corrosion off them.

If it's the cooling fans at the front, these are controlled by a temperature switch which may be faulty.
Locate it , and measure the conductivity between contacts when cold - and when engine is very hot. The switch should close at around 90 degrees - 3/4 of the temperature gauge.

If the switch is ok, the relays controlling the fans are probably corroded.
Sometimes mounted on the fan housing - follow the fan motor wiring directly to them.

Hope this helps.

Jun 15, 2008 | 2004 Pontiac Grand Am

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