Is your defective GMC Sierra 3500 actually a LEMON?

Find out in 30 SECONDS or less if it qualifies for a REFUND or a CASH SETTLEMENT.

TSB Document:

Affected Component: FUEL SYSTEM, DIESEL

Summary
This service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.

Click a tab for more information.

Date Published
SEP 14, 2022
NHTSA TSB #
10222779
Find something helpful? Spread the word.

Become a Fan & Spread the Word