Question about 2003 Pontiac Aztek

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Heater pops on and off

Had it checked and all the fuses and fan fuses were good. mechanic could not find anything wrong with car

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Add more cooler or replace all cooler!

Posted on Jan 04, 2009

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Ok i have a 2004 chevy monte carlo i have a weird problem i know its a pain to get it on how about off i have keys out fuse out and my ac/heater is still goin i cant turn it off tell i disconnect the fan...


I DONT THERE IS ANYTHING WRONG WITH YO FAN NOR FUSE BUT THE SWITCH, AC FAN SPEED CONTROL UNIT AND MAY B THE HARNESS TOWARDS THE AC BLOWER FAN.


NGOSA L. K.

Mar 02, 2014 | Cars & Trucks

2 Answers

Can anyone tell me why the heater fan just stopped working? the controller is good and the fan motor is also good . Is there some type of relay some where I am missing. Need help Thanks


the thing that the fan plugs into called the blower resistor. check that
The fuse boxes will have a fuse and a relay. Your owners manual will tell you your locations for each.

Dec 13, 2012 | 1999 Cadillac DeVille

1 Answer

I'm looking for the fuse that goes to me heater. the fan comes on but it blows cold air.


Hello
the fan priveds air circulation, not heat. If you have power to the fan, you're good in the fuse department.
As for no heat - did you check the coolant level?
Any check engine lights on?
Have you added anything to the radiator to prevent leakage? (If so the heater core could be clogged or other obstruction in the supply lines to/ from the engine cooling system.)
Best regards
Ck

Nov 14, 2011 | Cars & Trucks

1 Answer

The fan for air conditioner does not come on no heater or air ?.


Fan should be on its own fuse. Check owners manual for its location and swap it out for a known good fuse. Retest.

If fuse is good then either the fan switch or the fan itself has failed.
Both require special tools and information to replace. Your vehicle is pretty new so I think you should make friends with a local mechanic now! These cars were made on the cheap so this is probably only the beginning of many pesky little issues.

Oct 11, 2010 | 2006 Scion xB

1 Answer

Waterpumpisbad and mechanic say is because the fan clutch


if the blades are all there then fan is fan. he is probably referring to the fan clutch. but water pumps fail it is a wear item so sooner or later most cars are going to have to have one replaced.

Mar 18, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

1989 chev sub. heater fan will not operate,


yes under hood or dash if fuse is good check your elec. plug on heater fan housing may be burned up replace plug if still bad fan motor is no good

Oct 18, 2009 | 1989 Chevrolet Suburban

1 Answer

Fan does not work ,heater fan does not blow or come on to defrost window.


Hi,
My first line of action would be to check the fuse for the fan motor. Your owners manual should direct you to the fuse panel location. Hopefully, that's all that's wrong.
Hope this helps... Good luck!

Sep 15, 2009 | 1997 Ford Escort

1 Answer

91 Cavalier 4cyl AC Heater fuse blows


Disconnect the battery and do a continuity check from the heater fuse to ground. It will probably be a short. If so do a physical check of the wire(s) from the heater to the fuse. Look at any place where the wire(s) bend and any place where it's possible for the wire to vibrate against metal even if you have to cut tape and pull it out of a bundle to follow it, retape it later. I have faith in you finding a burned wire, good luck.

Mar 31, 2009 | 1991 Chevrolet Cavalier

1 Answer

Car heater


there is a relay for your heater fan. there is also a reostat that controls the speed of the fan as well. have these checked out.

Aug 28, 2008 | 1996 BMW 318

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