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2013 Chevrolet Silverado 2500 HD LT 6.0L Poor Performance
Posted to GM Driveability on 5/1/2026 5 Replies

Vehicle has no codes. lack of pep and speed maxes out at about 55. Pedal sensor tests good, Pedal sensor at 100% but throttle position sensor reads abot 45% and does not go fully open physically. Thanks in advance for your thoughts Bruce

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car Vehicle Data

2013 Chevrolet Silverado 2500 HD LT

VIN 1GC0KVCG0D
Engine6.0 L / 8 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / fi
EmissionsOBD-II Compliant
SymptomsPoor Performance
OccursAlways, Always
Open Help Request

car Vehicle Data

2013 Chevrolet Silverado 2500 HD LT

VIN 1GC0KVCG0D
Engine6.0 L / 8 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / fi
EmissionsOBD-II Compliant
SymptomsPoor Performance
OccursAlways, Always