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October 28, 2020 Service bulletin

This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the

Chevrolet technical service bulletin 16NA380 for 2010-2014, 2017-2021 Chevrolet Silverado 1500, 2021 Chevrolet Tahoe and 2018-2019 Chevrolet Equinox and others.

Bulletin number
16NA380
Component
Engine and engine cooling: exhaust system: manifold/header/muffler/tail pipe
Summary
This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.

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