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2003 Chevrolet Silverado 1500 5.3L Misfire
Posted to GM Driveability on 9/1/2020 22 Replies

First off THANK YOU All those who reply. Vehicle came in with misfire on #4 & #5 @ idle. As stated new plugs and wires installed and compression test on #4 is 170 and #5 is 185. Switched #5 & #3 coils no change. Idle is currently 556 to 650. Using MISF...

22 Replies Received (View Replies)

  Related Documents & Media  2003 Chevrolet Silverado 1500

 
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Silverado 1500

VIN 2GCEK19T33
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIdle
Misc.Misfire

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Silverado 1500

VIN 2GCEK19T33
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIdle
Misc.Misfire

Trouble Codes

P0300Multiple Misfire Detected