1992 GMC Suburban 2500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1992 GMC Suburban 2500
Verified by mechanics, reported by drivers like you
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1992 GMC Suburban 2500 ProblemsDriveability Problems Due to Internal Distributor Fault
The distributor may develop internal faults. This can cause a rough running engine or stalling condition, the Check Engine Light may or may not illuminate. Our technicians tell us that the distributor should be overhauled or replaced to correct this concern.
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.
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.
1992 GMC Suburban 2500 Questionsstart but will not run long (1 answer)
truck had been starting &running ;set for two weeks.will start and then shut off.
checked;fuel pump/prusser ;all electric to injects all OK; spray starter fluid [will run as long as you spray]
start up run 15 or 20 sec. then shut off. does carb. have pump in it