1991 Dodge Ram Wagon B350 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1991 Dodge Ram Wagon B350

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1991 Dodge Ram Wagon B350 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.

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.

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.

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1991 Dodge Ram Wagon B350 Questions

Why do headlights burn out within a few moments of driving? (1 answer)

Out of the blue the headlights went out I got some new ones and within a few moments of being on they went out it was like they burned out on low beams and then put them on high beams and then they burned out on high beams.

transmission does not shift into overdrive (2 answers)

transmission does not shift into overdrive. the light in the switch is off, pushing the switch in does not change anything, is there a overdrive switch relay that could possibly be bad. If so where is it located?

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