1993 GMC 2500 Pickup Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1993 GMC 2500 Pickup

1993 GMC 2500 Pickup Problems

Transmission Fluid Leak, Erratic Shifting

On the 4L80-E Transmission (Diesel and 7.4L gas engine), Transmission fluid may leak through the electrical connector on the side of the transmission, damaging the wire harness and causing the transmission to shift erratically. Our technicians tell us there are updated shift solenoids, an internal  transmission harness, and a connector pigtail available to correct this fault.

Quick-connect fittings for heater hoses may leak engine coolant

The quick-connect fittings for the heater hoses tend to leak engine coolant. This problem commonly occurs because the metal housing has become brittle, which can break and cause leaks.

Alternator May Fail and Cause Noise and Dead Battery

The alternator may fail causing the battery to go dead, or an abnormal noise may develop. The dash warning light may or may not illuminate. A failed alternator will require replacement.

See More Problems (17)

1993 GMC 2500 Pickup Questions

rebuild transmission? (1 answer)

my truck will not go over 35 ml hr. the drive may be out? all other gears are working properly. my question is can it be repaired? or am i looking at buying another transmission?

See More Questions (1)

1993 GMC 2500 Pickup Recalls

Seat Recliner Bolts Loosen And Fracture

The seat recliner to seat frame bolts could loosen and fracture, resulting in the seat back reclining unexpectedly while driving. Dealers will remove all foam and fabric sandwiched between the recliner assembly and the seat frame, and will install new attaching bolts tightened to a higher specification free of charge to resolve the concern.

See More Recalls (1)