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» HVAC Air Flow Switching to Defrost When Accelerating
Dodge Ram Wagon 2500
Report: HVAC Air Flow Switching to Defrost When Accelerating
Dodge Ram Wagon 2500 Problem
Model Years Affected: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
Verified
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.
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