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1999 GMC Sierra 1500 SLT 5.3L Misfire
Posted to GM Driveability on 3/16/2009 12 Replies

thanks in advance.i was just wondering if that code could have anything to do with this random miss.i have checked fuel pressure okay,also cleaned out [...] was on cylinder's 134578 at first after i cleaned maf no misfies on any cylinder,but to me it;s not rig...

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  Related Documents & Media  1999 GMC Sierra 1500 SLT

 
Message Closed w/FIX

car Vehicle Data

1999 GMC Sierra 1500 SLT

VIN 2GTEC19T7X
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIdle

Trouble Codes

P0300Multiple Misfire Detected
P0463Fuel Level Sensor Circuit High Voltage
Message Closed w/FIX

car Vehicle Data

1999 GMC Sierra 1500 SLT

VIN 2GTEC19T7X
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIdle

Trouble Codes

P0300Multiple Misfire Detected
P0463Fuel Level Sensor Circuit High Voltage