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1990 GMC Vandura 2500 Repair and Maintenance Costs

A guide to repairs, service, and maintenance costs for your 1990 GMC Vandura 2500

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1990 GMC Vandura 2500 Problems

Highter Than Nornal Idle Due to Vacuum Leak

An engine vacuum leak may develop from the throttle body gasket causing a higher than normal idle speed. Failed gaskets should be replaced.

Noise and/or Dead Battery Due to failed Alternator

The alternator may fail causing the battery to go dead. The charge light on the dash may or may not illuminate. The alternator may also develop an abnormal noise. A failed alternator will require replacement.

Intake Manifold Gasket May Leak Coolant or Engine Oil

The intake manifold gasket may develop and 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.

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