Question about 2003 Jeep Grand Cherokee

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Heater not working / climate control not working

03 grand charokee limited heater & ac not working. Take to dealer working fine , 2 day later stops working.

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  • topsell345 Dec 14, 2008

    THE BLOWER GOES ON AND OFF. MOSTLY OFF. THERE IS POWER TO THE FAN. CLIMATE CONTROL MAYBE IS THE ISSUE ? TOOK TO GARAGE AND WORKED FINE, 2 DAYS LATER DOES NOT WORK

  • tracyb433 Dec 18, 2008

    Same problem, can feel cool air, but does not blow, heater does not work at all anymore. 2003 Jeep Grand Cherokee Limited. About a year ago the heat got stuck on and could not get to cool. Took to Jeep Service who said the vent was stuck and would have to remove entire dash, at a cost of 1000 dollars, to repair. Mechanic managed to get it unstuck somehow for me to go to a funeral. Worked great all year up til now.

  • Tim K May 11, 2010

    is it the blower that is not working or what is it doing or not doing?

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I KNOW ITS INCONVENIENT TO SAY THE LEAST & YOU PROBABLY SHELLED OUT A FEW BUCK FOR IT TOO.CALL THEM RIGHT BACK.DONT LET ANYONE ELSE TOUCH IT.

Posted on Dec 14, 2008

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My 2002 Jeep Grand Cherokee Laredo with manual climate control AC light goes off and AC stops working whenever it wants. I can force the AC to work by holding the AC button in real tight.The AC l


Have a good mechanic to check to see if the door of the a/c and heater and defroster is working properly. I had the same problem and one mechanic said he could fix it for $750. I got it fixed by an honest mechanic for less than $100. Good Luck!!

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My ac was working fine then one day it stopped and now only hot air blows out the mechanic said the ac is fine and works good but there is a vent door that switches the ac to heater and he said it was...


There is a blender that controls the air flow to go through the heater core for heat, and the evaporator for AC. It very well could be stuck.

You maybe able to try and get it to get unstuck by running the cars AC and switching from heat to AC back and forth and see if it gets unstuck. Just turn it on full blast and go from heat to cool.

If that fails, then you may need to service it. There should be a Lever Marked VENT under the dash, usually by the Brake and other pedals on the Driver's Side. Close the VENT and that will stop the Air from coming in and leave the A/C Blowing through the outlets(Vents).

I also read this online if you have an electronic climate control. "On climate control press off and heat button and let go quickly. Then press automatic. The display will start rotating eventually displaying a code 025,125 , 024 etc. Then press defrost to stop. You may hear blend door operating atb that time. It worked for my climate control."

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My 97 buick lesabre limited heater/ac blower quit, it has the climate control,I checked all fuses.


REMOVE HEATER BLOWER MOTOR HOT WIRE BLOWER MOTOR IT.IF IT WORKS.YOUR AC AND HEATER CONTROL SWITCH IS FAULTY.CHECK HVAC FUSES AND CHECK BLOWER MOTOR RELAY.IF BLOWER MOTOR DONT WORK WHEN HOT WIRE REPLACE IT.IF ALL CHECK OUT GOOD.HAVE DEALERSHIP DO A DIAGNOSTIC TEST ON YOUR CLIMATE CONTROL SYSTEM.

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2000 jeep grand cherokee limited with climate controle and 6 cyl. the ac blows cold on the driver side and hot on the passenger side.


If you have duel climate control, it sounds like the blend doors inside the heater box have broke. It is a rather large repair to do. If you don't have duel climate control, look for a broken, leaking or aged vacuum line under the battery try. Hope this helps.

Best of luck

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2001 BMW X5 Climate Control (AC) not working


its not a fuse i had the same problem on my 03 x5 it an ac resistor thats at fault it controls your fan once it goes your fan wont come on or comes on intermitently once again the faulty part is a blower motor resistor should be 100 bucs at dealer or if you shop around i got mine for 75 from local parts store (carquest)

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Interior lights on climate clontrol knobs don't work


I have this same problem, have you found a way to fix it?

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I have the same problem... If you have the auto climate control like I do there is a resistor at the bottom of the HVAC assembly right where the passengers foot would go. Be careful playing with these wires but you can wiggle them around and sometimes it worksish. But I've seen jeeps that the entire inside has burnt out because of that wiring. It is hard to find this part without going to the dealership stores say they can order it and then call later and say they cant. But you have to replace both the wiring and the heater resistor which will be a good days worth of work.

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2 Answers

Heat/ac not working on 2004 Jeep Grand Cherokee Limited


look for Main A/C relay, look for fuses, or go to a/c shop and have gas check out, perhaps leaks, perhaps evaporator, perhaps condenser, but start for relay box on front passengers side, or fuses on same side

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