Question about 2003 Jeep Grand Cherokee

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Heater stopped working

2003 Grand Cherokee - heater stopped working. I have no defrost for windshield and doesn't blow cold air either.

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  • tahoe1979 Feb 15, 2009

    I checked the fuse for the blower, exchanged it for the ABS fuse, still didn't work, replaced both fuses in orignal place and now ABS indicater light stays on.

  • 240cpa May 11, 2010

    is it the fan that quit? if so, check the fuse for the blower and see if it has expired. replace it if necessary.

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Where the heck is the motor located???

Posted on Dec 02, 2012

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My heater went again after the relay and blower motor was replaced. HELP!

Posted on Feb 17, 2010

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  • 67 Answers

Check blower motor.. give it a tap when you start the vehicle and turn on the heat.. if it come on then you would have to replace the blower motor..if it does not check for fuse..

Posted on Feb 15, 2009

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1998 GRAND CHEROKEE BLOWS ON DEFROST ALONE


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Heater blows cold


To troubleshoot this types of problem,click the link below :----http://howtobyme.blogspot.in/2012/02/heater-blows-only-from-defrost.html
--------Go through the procedure to confirm the issue.------
Engine Overheats and heater blowing cold? http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html
---------Heat blows cold on drivers side and hot on passenger side? http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html
-----------
This will help.Thanks.

Feb 15, 2012 | 2003 Buick LeSabre

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Neither my heat or a/c works and when I try to defrost my windows they just fog up is the accumulator / drier need replaced?


does the air temp change when you try to blow ac and or heat?? if it does change from cold to hot at your discretion and it is still fogging up you may have a leaking heater core and in which cases the "fog" you see on the windshield is actually antifreeze blowing onto the glass from the leaking heater core.

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I have an 01 Jeep Grand Cherokee. When you turn on the air conditioning air does not blow out any of the vents except a small amount of air (cold) will blow out the defroster vents by the windshield. If...


behind the center counsel between the floor and the heater housing is a part that is called the blend door actuator. these usually go bad and have to be replaced.

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I have a 2003 Jeep Grand Cherokee Overland with automatic climate control. The drivers side blows cold air constantly. It has no heat.


sounds like the blend door motro may be bad, this motor is screwed to heater box, there are a few of these motors one for pass/side for hot/cold air then one to control position of air like defrost or vent or floor, then the driverside cold/hot air, i think this motor is on driverside part of heater box, to make sure locate each motor while moving all controls until you spot the one that doesnt move, then remove it and move door manualy to see if you get heat, then replace that motor, hope this helps,

Dec 26, 2009 | 2003 Jeep Grand Cherokee

1 Answer

Grand cherokee heater blows cold air


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Dec 06, 2009 | 2003 Jeep Grand Cherokee

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Heater core leak in 2002 Jeep Grand Cherokee Ltd


your heater core is leaking its not fog on your windows its from the antifreeze having same problem so im replacing it myself but having problems getting the dash off its a head ache the heater core costs 91.99 at autozone i priced the job at a few shops and it runs between 7 and 900 dollars.good luck man

Feb 03, 2009 | 2000 Jeep Grand Cherokee

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