Fuel/propulsion system
Chevrolet technical service bulletin PIT6177 for 2020-2024 Chevrolet Silverado 1500 and 2020-2024 GMC Sierra 1500.
- Bulletin number
- PIT6177
- Component
- Fuel/propulsion system
- Summary
- This Preliminary information communicates an issues of the left rear leaf spring making a squeaking noise due to diesel fuel contamination that may occur during refueling after the fuel nozzle is removed from the fuel filler pipe. Dealers are to create a foam seal around the fuel filler pipe to prevent fuel from leaking onto the left spring.
Owners of these vehicles have filed 350 complaints in the fuel system category.
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