1994 GMC Vandura 3500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1994 GMC Vandura 3500
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1994 GMC Vandura 3500 ProblemsIdling 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.
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.
A coolant leak may develop from the water pump. This can result in an engine overheating condition. A leaking water pump will require replacement.
1994 GMC Vandura 3500 QuestionsMy truck will not shift when its cold. (1 answer)
When I start my truck in the morning it will not shift out of low gear. when it gets to 170 degrees I can shut the truck off and turn it back on and it will shift normally. But if I do not shut the truck off it will not come out of low gear.
when i goin the the hiway and is an slope , the speed go down drasticly from 65 to 35 mph., lus power..
Our van will overheat frequently and VOMIT out anti-freeze through the overflow. Very annoying. I don't think it's the head gasket, as it doesn't do it constantly.... Thermostat? Water pump? Something else?