1990 Chevrolet Suburban 2500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 Chevrolet Suburban 2500
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1990 Chevrolet Suburban 2500 Problems4WD Transfer Case Position Sensor/Selector Switch May Fail
The 4WD transfer case encoder motor position sensor or the selector switch may fail causing the service 4WD message to be displayed. Fault code(s) stored in the transfer case control module will be of assistance in determining the exact fault causing the message to be displayed.
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.
1990 Chevrolet Suburban 2500 Questionsloud knocking (1 answer)
Is this engine fuel injected?
We have already diagnosed the truck with starting fluid Ignition works but immediately quits. Incidentally no headlight power to the main switch? ODB port also has no power, I suspect it is through a power circuit short or relay problem but i also suspect the shifter itself, i tried finding ne...