1991 Dodge Ram Van B250 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1991 Dodge Ram Van B250

1991 Dodge Ram Van B250 Problems

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.

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.

The blower motor may operate erratically and the blower switch operation has a sticky or mushy feeling, the detents almost non existent. Our technicians tell us that the blower switch should be removed and inspected for overheating. This is common if the blower motor is frequently operated on high speed as the current flow through the switch tends to melt internal the components. Also carefully inspect all of the switch connector terminals for discoloration due to overheating and replace as required. A poor electrical contact at the connector will also cause the switch to overheat.

See more problems 12

1991 Dodge Ram Van B250 Questions

especially on a hot day and more so when pulling a hill.
ANYWAYS, MY OIL PRESSURE IS FINE BUT AFTER DRIVING 20 OR SO MILES, ESPECIALLY PULLING A HILL ON A HOT DAY, WHEN I COME TO A STOP THE OIL PRESSURE LIGHT COME ON AND JUST FALLS TO "NO-PRESSURE." I PUT IT IN NEUTRAL, ITS AN AUTOMATI...

Trying to shut off Maintance light

location of oil pressure sending unit

See more questions 23