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2001 GMC Sierra 2500 HD SL 6.0L Misfire, MIL Lamp on, flashing mil
Posted to GM Driveability on 7/13/2011 5 Replies

Tuck came in with p0300. Truck just passed Ma insp with OBD2 test the day before. Scan tool on misfie data has equal counts on misfire monitor for cylinders #7 and #8. Disabled injectors with Modis. No noticeable changes on 7 and 8. Moved coils and wires to ot...

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  Related Documents & Media  2001 GMC Sierra 2500 HD SL

 
Message Closed w/FIX

car Vehicle Data

2001 GMC Sierra 2500 HD SL

VIN 1GCHC29U01
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp on, Flashing MIL
OccursAlways
Misc.Ca Emissions

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2001 GMC Sierra 2500 HD SL

VIN 1GCHC29U01
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp on, Flashing MIL
OccursAlways
Misc.Ca Emissions

Trouble Codes

P0300Multiple Misfire Detected