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2002 Chevrolet Silverado 2500 6.0L Poor Idle Quality, Misfire, MIL Lamp on
Posted to GM Driveability on 2/23/2009 12 Replies

The engine runs very rough at idle showing misfires mainly on cylinders 1,3,4,8. After 2000 rpm it smooths out and runs ok. The fuel pressure is ok and the egr is staying closed. It acts like a vacuum leak but we haven't been able to find one. It seems to have...

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  Related Documents & Media  2002 Chevrolet Silverado 2500

 
Message Closed w/FIX

car Vehicle Data

2002 Chevrolet Silverado 2500

VIN 1GCHK29U82
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIdle

Trouble Codes

P0106Manifold Air Pressure Sensor Range/Performance
P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2002 Chevrolet Silverado 2500

VIN 1GCHK29U82
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIdle

Trouble Codes

P0106Manifold Air Pressure Sensor Range/Performance
P0300Multiple Misfire Detected