1994 GMC Vandura 2500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1994 GMC Vandura 2500

1994 GMC Vandura 2500 Problems

Idling Problems Due to Vacuum Leak in Throttle Body Gasket

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

Intake Manifold Gaskets 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.

Distributor Shaft O-Ring Seal May Leak Oil

An oil leak may develop from the distributor o-ring seal requiring replacement of the seal.

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1994 GMC Vandura 2500 Reviews

should timeing marks on a timeing chain be pointing at each other or in a straight line up
my wife loves this van, and Im tired of it because Im the one working on it all the time. I went thru 4 starters within 1 month and now i have to put a timing chain and gears in it, but i keep getting this roering sound from the rear and cant figure it out. i re-done the brakes, put gear oil in the axels, changed the tires, and three auto mechanics couldnt tell me whats wrong, im at a loss. any...

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