1990 Dodge Ram Wagon B250 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 Dodge Ram Wagon B250
1990 Dodge Ram Wagon 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.
1990 Dodge Ram Wagon B250 Questions
Recently, my alternator died. I'm going to replace it, but I can't get the belt that surrounds the alternator loosened. I got the main bolts and nuts off the alternator and the electrical connections. Now I just think I have to pull it out of its housing, but need to loosen belt first....