1990 Dodge Ram Van B150 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 Dodge Ram Van B150

1990 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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1990 Dodge Ram Van B150 Questions

Have been trying all day and evening to remove oil filter with no success. (1 answer)

Cannot get the old oil filter out. Made 3 trips to auto store for tools. Nothing has worked. Wits end. Please help.

Ned to replace parts on radiator (1 answer)

On the bottom of the radiator are two nipples to which hose connects to keep transmission cool. purchased used radiator but it did not have the nipples to whic I would need to connect the lines. Can I get these nopples to replace what I need?

vibration in van (1 answer)

when driving down the road i get a bad vibration especially at 45mph when i let off gas it quits ujoints seem to be good just did a tune up can u email me a wiring diagram for the van plz

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