1990 Chevrolet Suburban 1500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 Chevrolet Suburban 1500
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1990 Chevrolet Suburban 1500 ProblemsIntake Manifold Gaskets May Leak Coolant or Engine Oil
The intake manifold gasket may develop an external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Running the engine with a coolant/oil mix may result in engine damage. Replacing the intake manifold gasket should correct this issue.
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.
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 1500 Questionsengine gets spark, wont start. could it be fuel (1 answer)
suspect fuel pump
make alot of noise when driving around 70mph
wher is the flap actuator located ? can it be repaired or need to b replaced i don't know what it looks like