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Dodge Ram Wagon 1500 Car Problems

HVAC Air Flow Switching to Defrost When Accelerating on Dodge Ram Wagon 1500

Problem Description and Solution

The AC/heater (HVAC) system may unexpectedly switch to the defrost mode when accelerating. This system is operated by engine vacuum and should be inspected for any vacuum leaks if this problem develops.  There is also a revised vacuum check valve available to address this concern.

(9 people reported this problem)

Problem Data

RepairPal Verified
Average mileage: 150,000 (150,000–150,000)
8 model years affected: 1995, 1996, 1997, 1998, more1999, 2000, 2001, 2002

Not Your Dodge Ram Wagon 1500 Problem?

Brake problem? Or maybe a faulty head gasket cylinder?
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