Air Conditioning Not Cold on Dodge D150

The powertrain control module (PCM) may fail resulting in a lack of AC cooling. The lack of cooling could be caused by evaporator freeze-up due to the AC compressor staying on continuously or conversely, not coming on at all. Proper diagnoses of the PCM should be performed before replacing it for this concern.

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Average mileage: (–)
4 model years affected: 1990, 1991, 1992, 1993
4 people reported this problem
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