Question about 1996 Jeep Grand Cherokee

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My heater does not work, the air blows but no heat. I have replaced the thermostat, water pump, Temperature control panel, and still no heat.

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  • goingthere09 Nov 15, 2009

    Thanks for your help! Just wandering one last thing??? Where is the temp door and actuator located at??? This seams to be my problem

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Sounds like you have some mechanical aptitude..... I LIKE THAT!!!! Now....get your hand up to the evap box....after the jeep has been running for a while so it can get warmed upand turn the heater on......you should feel some hot air on the evap box on the mid to upper part...if you do this is good...it means you have a temp door actuator stickin....which is a huge tsb for these vehicles....if there is no hot air on the evap box on the inside of the jeep then get back undr the hood and put your hands on the heater core inlet and outlet hose......should both feel the same hotness...if not then ya have a faulted heater core...try to flush it and replace if necessary..........HOPE I HELPED!!!!

Posted on Nov 14, 2009

Testimonial: "Very helpful! Thanks for your help!"

  • Jason Lewis
    Jason Lewis Nov 16, 2009

    the temp door actuator(motor) and blend door actuator......are both located on the evaporator case assy....which is inside the vehicle underneath the dashboard. You can't miss them ....might need to pop off the glovebox to gain access to them.Sometimes you can navigate the new actuator in from undrneath the box if you have enought patience.....your best bet is to devote a morning timeframe for this repair. especially if you haven't done this before.. it is a simple repair.....just not a lot of room to navigate around in there with.....if need be a chilton's manual couldn't hurt you at all either...there will be a electrical pigtail on the actuator itself too that you will need to disconnect to remove from the evap box. Please get back to me if you have any other questions....I'm here to help ya..and I'm sorry about the late response.....just got back into town....THX again!!!!! HOPE I HELPED!!!!!

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