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2011 Chevrolet Silverado 1500 LT 5.3L Misfire
Posted to GM Driveability on 3/26/2018 10 Replies

truck came in with a p0305 found the plug to be bad so replaced wires and plugs and at idle no more misfires but when you drive it. it shows random misfires on cylinders #1,5,7,6,8 only at about 48 to 50 mph with 30%throttle looked at the freeze frame data...

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  Related Documents & Media  2011 Chevrolet Silverado 1500 LT

 
Message Closed w/FIX

car Vehicle Data

2011 Chevrolet Silverado 1500 LT

VIN 1GCRKSE38B
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsMisfire
OccursHot, Under Load, Intermittently

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2011 Chevrolet Silverado 1500 LT

VIN 1GCRKSE38B
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsMisfire
OccursHot, Under Load, Intermittently

Trouble Codes

P0300Multiple Misfire Detected