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November 7, 2019 Service bulletin

Engine and engine cooling

Chevrolet technical service bulletin PIP5335D for 2014, 2018 Chevrolet Silverado 1500, 2015-2020 Chevrolet Tahoe and 2017 Chevrolet Silverado and others.

Bulletin number
PIP5335D
Component
Engine and engine cooling
Summary
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Codes P0340 and P0341 setting at times. Technician should use normal published Service Information diagnostics. If normal Service Information diagnostics does not isolate the concern, inspect for corrosion in connector X154 located on the front cover next to the vacuum pump.

Owners of these vehicles have filed 685 complaints in the engine category.

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