Resources for the Repair and Maintenance of your GMC Vandura 1500
GMC Vandura 1500 Models:
GMC Vandura 1500 Problems
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.
The Fuel Pump May Fail Causing the Engine to Stall or Crank Over But Not Start
The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.
Coolant Leak & Engine Overheating
A coolant leak may develop from the water pump. This can result in an engine overheating condition. A leaking water pump will require replacement.
Driveability Problems Due to Internal Distributor Fault
The distributor may develop internal faults. This can cause a rough running engine or stalling condition, the Check Engine Light may or may not illuminate. Our technicians tell us that the distributor should be overhauled or replaced to correct this concern.
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.
GMC Vandura 1500 Questions and Answers
How do you install a netraul safety switch on a 88-91 gmc van
i have a gmc van 1989 it idles fast put in plug wires tps and map sencer and it steel idles around 2000 rpm
My Vandura runs perfectly when first started running in Open Loop and doesn't miss at idle or at high RPM. Once the van reaches operating temp and goes into closed loop, it hesitates and backfires...
We keep replacing the battery but none of them have held a charge. The auto shop says there's nothing wrong but we have to charge the battery if we want to use it. Sometimes we can be somewhere a...
Would all the coolant drain out from the bottom of the radiator?.