GMC Suburban owners have reported 86 electrical system related problems since 1996. Table 1 shows the 17 most common electrical system problems. The number one most common problem is related to the vehicle's battery (19 problems). The second most common problem is related to the vehicle's wiring (12 problems). For details of each of the problem category, use the links in the table.
No summary listed for above vehicle. Read details...
Fuel gage was acting erratic went full then empty with full tank . A few days later the truck would not start. Found fuse in engine compartment blown for fuel pump. Fuel pump wiring was melted in fuel tank causing short. Had to replace pump and harness which was part of the pump housing. Read details...
1997 GMC Suburban- multiple engine & transmission failures. At 60,000 miles, vehicle began to shift hard. Returned to shop for diagnosis and repairs several times for work. Finally, while driving the vehicle in city traffic, the transmission failed compeletly. Read details...
Since purchasing SUV new, I have had 3 failures to crank due to a design defect in the hot lead cables that attach to the battery. The lead washer used between the two leads becomes misshaped and loses the ability to cause a connection. Read details...
The positive battery terminal post broke loose from the battery, spilling battery acid on the brake tubing. Discussed battery failure with gm and they refused to replace battery due to the fact the vehicle was out of warranty. Read details...