GMC Vandura 2500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your GMC Vandura 2500
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GMC Vandura 2500 ProblemsIntake 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.
On the 4L80-E Transmission (Diesel and 7.4L gas engine), Transmission fluid may leak through the electrical connector on the side of the transmission, damaging the wire harness and causing the transmission to shift erratically. Our technicians tell us there are updated shift solenoids, an internal transmission harness, and a connector pigtail available to correct this fault.
GMC Vandura 2500 QuestionsCar parked for three years. Very low mileage. New fuel pump. I can hear it running, no gas to fuel filter (1 answer)
Have not been able to start.
Hello, i'm working in a ski resort for the winter. So my van did not move since the beginning of december. I didn't disconnect the battery so it's flat. But i'm charging it this 2 days and i am still not able to start the van. While it's charging the hazard light are flashing ...