Question about 2004 Jeep Grand Cherokee

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Fan on the ac stopped working. Were is the resistor located.

We don't have a book. Where is the resistor located?

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I can't tell you where is the resistor but usually at maximum speed the switch bypass the resistor pack since there is no need of resistor at full speed, so if the fan stop completely, there is a good chance the fan is blown if it is not working at full speed.

Take a voltmeter and test for voltage at the fan connector with the speed fan switch on, you will be able to test all speed and if you do have voltages the fan is just dead.

Posted on Jun 01, 2009

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Locate the blower motor resistor on a 1999 dodge durango


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and must be near fan actual so it always is cooled. see?
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alldata.com
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if fan fails on high too, its not the resistor, because on high
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The ac fan motor in my 2011 Peterbilt only works on high......anyone else have this problem ?


I don't even have a 2011 Peterbuilt! ;)
But as in many vehicles when the blower only works in high its due to a bad blower resistor. The resistor is in operation on slower speeds and the motor gets full power and bypasses the resistor on the high speed setting.

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The ac fan has stopped working in my 2002 x5. controls al light up but there is no heat or air. suggestions ? & how to i fix ?


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Fan selector switch works only on high selection.


This is a typical  symptom of a failed blower resistor. These have multiple taps for the different speeds but the highest speed just bypasses the resistor completely; that is why it still runs full-tilt.
That resistor may or may not be inside the passenger compartment and could be accessible from under the hood, probably mounted on the firewall or under plastic hoods covering part of the heater/AC exchangers.
I'd recommend buying a Haynes or Chilton manual for your car that should cover the location of that part and perhaps give you information on how to best access it. The books are $17-$30 US and available on line or at any auto parts store and will earn their keep pretty quickly.    

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1 Answer

A/C Fan No-Go - Clarify solution posted by by Jason Wagner


Hi Marc,
I'm not too clear as to which of the two AC fans is not working.....Is it the condenser fan (the one out front of the radiator, mounted at the front of the engine compartment) or the cabin fan?.....either one will stop working in the event of low gas pressure in the AC system.

Is the AC working at all?

The removal of the center consul is not a small job....and to get to the resistor, is also, not very easy....I'm sure that if it is the resistor that has become defective, you'll be able to get one from a breakers yard....They don't usually give problems on the BMW....Incidentally they control the lower speeds of the interior fan operation, but not the high speed, so if the fan works when full and not any other speed, the resistor is the problem.

The fan operation is also fused....A good idea is to check the fuses....

Does the climate control work?

I think I need more clarification and then hopefully I can help a little more....

Best regards Johngee10






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1 Answer

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