Problem with your car? See what our experts say or submit your own.
1994 GMC Vandura 1500 Problems
A coolant leak may develop from the water pump. This can result in an engine overheating condition. A leaking water pump will require replacement.
An engine vacuum leak may develop from the throttle body gasket causing a higher than normal idle speed. Failed gaskets should be replaced.
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.