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1999 GMC K1500 Suburban SLE 5.7L Misfire
Posted to GM Driveability on 5/17/2005 22 Replies

We have been working on this truck trying to correct this very intermittant misfire code that rears its ugly head every couple of [...] hard part is trying to duplicate the problem...it only occurs when climbing a long {1-2 mile } very steep uphill grade{which...

22 Replies Received (View Replies)

  Related Documents & Media  1999 GMC K1500 Suburban SLE

 
Message Closed w/FIX

car Vehicle Data

1999 GMC K1500 Suburban SLE

VIN 3GKFK16R3X
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / Central Sequential Fuel Inject
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load, Intermittently

Trouble Codes

P0300Multiple Misfire Detected
P0307Cylinder 7 Misfire Detected
Message Closed w/FIX

car Vehicle Data

1999 GMC K1500 Suburban SLE

VIN 3GKFK16R3X
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / Central Sequential Fuel Inject
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load, Intermittently

Trouble Codes

P0300Multiple Misfire Detected
P0307Cylinder 7 Misfire Detected