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1998 GMC K1500 Sierra SL 4.3L Misfire, MIL Lamp on
Posted to GM Driveability on 6/7/2005 16 Replies

Reoccurring code returns P0300, misfire counters storing misfires on all cylinders, excessive misfires occurring on current misfire counters for cylinders #1 & #4, ran fuel injection cleaning on fuel system. Replace injectors #1 & #4. Misfire apparent at R.P.M...

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  Related Documents & Media  1998 GMC K1500 Sierra SL

 
Message Closed w/Summary

car Vehicle Data

1998 GMC K1500 Sierra SL

VIN 1GTEK14W9W
Engine4.3 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / c.p.i
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursHot, Under Load, on Decel, on Accel
Misc.Sierra

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/Summary

car Vehicle Data

1998 GMC K1500 Sierra SL

VIN 1GTEK14W9W
Engine4.3 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / c.p.i
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursHot, Under Load, on Decel, on Accel
Misc.Sierra

Trouble Codes

P0300Multiple Misfire Detected