Chevrolet Silverado 2017–2019 — technical service bulletin
Bulletin 18NA334 · NHTSA communication 10158776 · issued Feb 6, 2019
Technical service bulletin
communication type
Fuel System, Gasoline
component
2017–2019
model years
7
vehicle entries
Official summary
This informational bulletin provides information on Perceived Longer Crank, Misfire, Hesitation Feel and/or Surge conditions of the new L5P 6.6L Diesel Engine.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.