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2002 GMC Sierra 1500 SL 5.3L MIL Lamp on
Posted to GM Driveability on 2/18/2009 12 Replies

This car came in with a MIL and P0300. The owner said the truck ran fine and had no drivability complaints. A few occasional misfires show up at idle, but not biased toward one cylinder. After looking on the ignition scope, the firing kV was about 10-13V, spar...

12 Replies Received (View Replies)

  Related Documents & Media  2002 GMC Sierra 1500 SL

 
Message Closed w/FIX

car Vehicle Data

2002 GMC Sierra 1500 SL

VIN 2GTEC19T22
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2002 GMC Sierra 1500 SL

VIN 2GTEC19T22
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0300Multiple Misfire Detected