ANSWERS: 3
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If it will not blow at all it could be the blower motor, blower resistor, or a broken door. If the right side of the dual zone AC system is blowing but is too warm then the problem could be a broken door or a door motor, read more on related problems at the following link http://www.denlorstools.com/home/dt1/page_11687/jeep_grand_cherokee_dual_zone_ac_repair.html
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Yes, it sounds like a blend door problem and this failure is very common on the GC. Check HeaterTreater at www.heatertreater.net for pictures, diagnostics and an inexpensive fix for the problem.
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The 2000 Jeep Grand Cherokee has a HVAC fault code system. The #56 = Right temperature door travel to large. This code indicates the passenger’s side blend door problem. Search for the Blen Dor Store for a NO Dash Removal - user friendly – access hole repair for the 99/04 Jeep GC common blend door and recirculation door problems.
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