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2003 Chevrolet Silverado 2500 6.0L Poor Idle Quality, Misfire
Posted to GM Driveability on 11/18/2005 22 Replies

Got a strange one here.

This 6.0 truck has a very rough idle and will even sometimes die. Missfires build up on all cylinders while idling but go away once you reach anything over 1400 rpm.

The truck has plenty of power and drives fine off idle. We have repl...

22 Replies Received (View Replies)

  Related Documents & Media  2003 Chevrolet Silverado 2500

 
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Silverado 2500

VIN 1GCHC29U33
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / PFI VORTEK
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursIdle

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Silverado 2500

VIN 1GCHC29U33
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / PFI VORTEK
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursIdle

Trouble Codes

P0300Multiple Misfire Detected