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2002 Dodge Grand Caravan Question: Heat system is not working properly

 

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casual51, Bothell, WA, February 14, 2009, 08:12
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My Caravan 01 it has a problem with heat system,just work with right side ,left side (passenger side) is cold always

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  • Answer #1

    February 16, 2009, 15:22
     Master

    It's either the system that controls the vent flaps, or the vent control flaps themselves.

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  • Answer #2

    February 22, 2009, 22:41
     Master

    Is your vehicle equipped with Dual Zone Temp Controls? (separate Driver/Passenger Temperature Control) You do not mention what mode the system is in, ie; heat, defrost, vent etc. If air is blowing out of all dash vents with the exception of the temperature, the problem is likely due to the "Blend Air: doors in the Heater Housing. Same is applicable for the Floor Vents. If heater floor outlet temperature cannot be adjusted with the heater-A/C control temperature control, one of the following could require service: Blend-air door binding, Faulty blend-air door motor, Improper engine coolant temperature, Faulty heater-A/C control. A dealership can also connect a diagnostic tool DRB3 and perform a system check of actuator operation and perform a simple calibration procedure to Isolate the problem. Also, if this involves the floor vent, make sure the air ducts are attached to the heater housing.

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