Chevrolet Conventional 2001–2016 — technical service bulletin

Bulletin PIP3504D · NHTSA communication 10114873 · issued Oct 9, 2015

Technical service bulletin

communication type

Fuel System, Gasoline

component

2001–2016

model years

vehicle entries

Official summary

This Preliminary Information communication provides information to the technician about vehicles that have a hard start when the engine is hot. If the fuel found in the vehicle has an American Petroleum Institute specific gravity reading of 39 - 44, and the fuel sample you used for comparison has an American Petroleum Institute specific gravity reading of 30 - 39, drain the fuel system and refill with a known good diesel fuel and retest.

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.