1991 GMC Van

1991 GMC VAN
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JUSTINMRICHEY
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Engine Mechanical problem
1991 GMC Van V8 Two Wheel Drive Automatic

i replaced a intake manifold gasket on a 91 gmc G3500 passenger van with a 5.7 L V8 engine. i went to start it and it backfired and then just turned over and would not start. if i let it sit for a couple hours it will backfire again and then just turn over. i was wondering what could cause this
Dec 17, 2008 at 12:18 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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