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2003 Chevrolet Suburban 1500 LS 5.3L Excessive Emissions, Misfire
Posted to GM Driveability on 9/27/2008 14 Replies

Vehicle will start and run fine at first, watching short term and mis-fire, bank one goes crazy gradually increasing, and misfire data on cylinders one and three goes up. Pulse width average on bank one is almost double of bank two. Black smoke is emmitted. Re...

14 Replies Received (View Replies)

  Related Documents & Media  2003 Chevrolet Suburban 1500 LS

 
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car Vehicle Data

2003 Chevrolet Suburban 1500 LS

VIN 3GNEC16T83
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Misfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
Message Closed

car Vehicle Data

2003 Chevrolet Suburban 1500 LS

VIN 3GNEC16T83
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Misfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected