2021 Chevrolet Silverado 1500 Fuel System Problems
3 owner-reported fuel system complaints from NHTSA data
Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.
Owner Complaints (3)
Your truck's check engine light came on after a transmission issue, and the dealership replaced a purge valve solenoid, but that didn't fix it. They then said you needed a fuel pump control module, which was on national backorder, and the dealership delayed getting you a repair timeline while pushing you to trade in the vehicle. After you ordered the part yourself and it arrived quickly, the dealership suddenly had the part in stock and replaced it, resolving the check engine light and transmission issues.
Parts you may need:
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P146B (EVAP Purge Pump System Performance) engine code started occurring around 50,000 miles. This is similar to the recall for 2019-2020 Chevy Silverado, Cadillac XT4, and GMC Sierra 1500 covered by N202324990.
A squirrel chewed into the fuel line [Hose - GM (84871298), see: https://www.gmpartsdirect.com/oem-parts/gm-hose-84871298). This caused a fuel leak that could be directly observed only while the vehicle was running. On one occasion, however, a small pool of fuel appeared under the vehicle immediately after shut off. This part failure poses a fire and explosion risk. In addition, the wasted gasoline pollutes the atmosphere. The line was replaced at Lynn Layton Chevrolet of Decatur Alabama (invoice 608119). The part was inspected by Lynn Layton Chevrolet as part of that service ticket in order to determine the cause of the leak. To my knowledge, further inspection has not occurred. No warning lamps indicated the failure. The problem was detected by observing the trail of fuel when parking.