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2015 Chevrolet Silverado 1500 LT 5.3L Knocking noise
Posted to GM Engine on 10/14/2025 7 Replies

Hello everyone I would first like to thank you for your time. I have a 2015 Chevy Silverado with a 5.3 in it that has a slow rotational knock in it. Is more pronounced on cold startups but can hear it all the time at idle. The rotational noise is too slow ...

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car Vehicle Data

2015 Chevrolet Silverado 1500 LT

VIN 3GCUKREC9F
Engine5.3 L / 8 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedKnocking Noise
Open Help Request

car Vehicle Data

2015 Chevrolet Silverado 1500 LT

VIN 3GCUKREC9F
Engine5.3 L / 8 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedKnocking Noise