Mechanics

ROUGH IDLE AND STALLS

1997 GMC Sierra • 140 miles

My 97 GMC Sierra has a really rough idle and it dies when you stop at a lighht. What could thhat be?
AD
Avatar
Bonecollector2012
August 19, 2012.




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

ASEMaster6371
Aug 19, 2012.


AD