When i turn the heater to defrost , even with the a/c not turn on the electric fan start and won t stop
SOURCE: 98 dodge ram 3500 no heater blower
check your fan speed resisters usually located in the engine compartment
SOURCE: Dodge Ram 1500...heater is blowing cold air, even
Take a flashlight and look up under dash from center console area, across to passenger side, for wiring harness, and/or hoses(small rubber) , they should lead you to it. Haven't had my head under one of those recently, and having a problem tracking you down a diagram for some reason, but it has to be there.
SOURCE: air only blows on defrost (windshield)
Check vacuum lines on firewall for leak, check all vacuum lines if one on fire wall is ok , doors work off vacuum
SOURCE: problem with hid on 2008 dodge ram 2500
Not too much amperage. HID lights use less amps. Duh. The circuit is showing a failure in the HID kit from not enough amps so it turns off. You need to add a resistor.
SOURCE: no heat to cab in 96 dodge ram, will defrost.
you might have a vacuum leak, ck the vacuum line to the firewall where the a/c lines are at and make sure a check valve is in it also.
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