1990 GMC Suburban 1500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 GMC Suburban 1500

1990 GMC Suburban 1500 Problems

Pitman Arm and Lower Ball Joints May go Bad

The pitman arm and/or lower ball joints may wear causing loose steering and alignment issues. Replacement of worn components will be necessary before the alignment can be properly set to specification.

Intake Manifold Gaskets May Leak Coolant

A coolant leak may develop form the Intake manifold gasket causing overheating complaints. The coolant leak may be internal allowing coolant to mix with the engine oil, this condition can result in internal engine damage. Be aware that this problem is often mistaken as a blown head gasket.

Rear Axle Bearing May Fail

The rear axle bearings have been known to wear grooves in the rear axle shafts, creating a grinding noise and leaky axle seals. An indication that this problem has occurred is axle fluid leaking onto the wheel.

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1990 GMC Suburban 1500 Recalls

Recall 93V187000
THE RECLINER MECHANISM AND THE SEAT FRAME MAY HAVE FOAM AND/OR VINYL BETWEEN THEM, CREATING A "SOFT" JOINT. THIS "SOFT" JOINT RESULTS IN LOWER THAN SPECIFIED BOLT TORQUE WHICH LEADS TO JOINT LOOSENESS, CAUSING BOLT FATIGUE AND EVENTUAL BOLT FAILURE.
Recall 93V016000
UNANTICIPATED HEAT IN THE TRANSMISSION CAN FORCE THE TRANSMISSION FLUID OUT OF THE VENT TUBE.

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1990 GMC Suburban 1500 Reviews

This workhorse Suburban was very rough around the edges. With less than 100,000 miles it blew a headgasket. We also had a tire blowout on I-5 that luckily didn't cause an accident. I never felt very comfortable driving the truck and it just required too much repair given how young it was.

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