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2003 Chevrolet Silverado 2500 6.0L No Start, Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on
Posted to GM Driveability on 10/14/2017 26 Replies

This truck belongs to my new young tech. It will start and idle ok and even drive for a few minutes but once its hot it stalls and has severe misfires under load and will barely move. If you can get is started it idles ok in park but will stall in reverse usua...

26 Replies Received (View Replies)

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car Vehicle Data

2003 Chevrolet Silverado 2500

VIN 1GCHK23U43
Engine6.0 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsNo Start, Poor Idle Quality, Cuts Out, Stall, Misfire, MIL Lamp On
OccursHot, Under Load, Idle

Trouble Codes

P0101Mass Airflow Sensor Range/Performance
P0300Multiple Misfire Detected
Message Closed

car Vehicle Data

2003 Chevrolet Silverado 2500

VIN 1GCHK23U43
Engine6.0 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsNo Start, Poor Idle Quality, Cuts Out, Stall, Misfire, MIL Lamp On
OccursHot, Under Load, Idle

Trouble Codes

P0101Mass Airflow Sensor Range/Performance
P0300Multiple Misfire Detected