1990 GMC Suburban 2500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 GMC Suburban 2500

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1990 GMC Suburban 2500 Problems

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.

Distributor may fail
The distributors can go bad and set a trouble code; they should be replaced.
Loose Steering & Alignment Issues

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.

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1990 GMC Suburban 2500 Questions

Electrical power on my 1990 GMC Suburban (1 answer)

My 1990 GMC suburban just quit while driving it. It lost electrical power and the only thing that works is the head lights. Is there a fuse or fuse link some where that has blown.

How can I service my throttle body on my own? (1 answer)

Rough idle under no load, and roughacceleration.

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1990 GMC Suburban 2500 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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