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1996 GMC K1500 Sierra SL 5.7L Poor Idle Quality, Misfire
Posted to GM Driveability on 10/18/2008 26 Replies

this vehicle came to me with all new ignition parts and a new # 5 fuel injector. # 5 cylinder misfires only at idle, you can watch it on the tech 2 scanner, above 2000 rpm it starts to fire ok. it runs great on the road. i suspect a vacuum leak, but all tests ...

26 Replies Received (View Replies)

  Related Documents & Media  1996 GMC K1500 Sierra SL

 
Message Closed w/FIX

car Vehicle Data

1996 GMC K1500 Sierra SL

VIN 1GTEK14R2T
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

1996 GMC K1500 Sierra SL

VIN 1GTEK14R2T
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected