Rough IDLE and Stalls

1997 GMC SIERRA
140 MILES
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BONECOLLECTOR2012
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My 97 GMC Sierra has a really rough idle and it dies when you stop at a lighht. What could thhat be?
Aug 19, 2012 at 2:00 PM
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ASEMASTER6371
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look for vacuum leaks. check to see if the injectors are working correctly. the spray patterns should be the same.

check fuel pressure.

throttle body gaskets are common failures for this condition

Roy
Aug 19, 2012 at 2:10 PM