Question about 1999 Jeep Grand Cherokee

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Heat blows out cold on passanger side but fine on drivers side 2003 jeep grand cherrokee

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Try heatertreater on ebay. It costs about $130 and takes about 30min to install! It replaces the blend doors with a metal one. I did mine 2 years ago and is still working great :)

Posted on Jan 12, 2009

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Well lucky you i just fixed one of these jeeps at work. I take it that there is dual zone control one the jeep. First off its a 6 hour job you have to remove the entire dash and heater control unit. On the back side of the heater control housing there is a small motor that controls a heat blend door i found the motor to be ok but the door was broken. if you go to you're dealer they have a new updated door and a few other pieces you have to put in also. Also if they check the computer codes there will be a few codes im sure . I woul dleave this one up to the pro's but if you wana try it let me know.

Posted on Jan 11, 2009

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1 Answer

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check temp. blend door actuator its what controls the temp doors to change from hot to cold usually pass. side door breaks on jeep grand cherokee's causing pass. side to be cool,have seen some on drivers side break but not as many

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hi
you have faulty blend doors, try heatertreater.com they have a DIY kit that fixes the problem, it takes around half an hour to fix and works really well.
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