1991 Dodge Ram Van B150 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1991 Dodge Ram Van B150

1991 Dodge Ram Van B150 Problems

HVAC Air Flow Switching to Defrost When Accelerating

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.

Door Glass May Separate From Lift Channel

The door glass may separate from the glass lift channel. Our technicians tell us a front door glass channel kit is available to repair the door glass. The repair involves removing the door glass from the vehicle.

Oil leaks from valve cover, intake manifold, and timing cover gaskets

On the 3.9L V6, 5.2L V8 and 5.9L V8 the Oil leaks commonly from the valve cover gaskets, intake manifold gaskets (front and rear), timing cover gaskets, distributor O-ring, and the rear main seal area. Using fluorescent engine oil dye can be helpful in determining the source(s) of the oil leak.

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