Chevrolet Express 2006–2008 — technical service bulletin
Bulletin PIP-4430 · NHTSA communication 10026665 · issued Jul 1, 2008
Technical service bulletin
communication type
Fuel System, Gasoline
component
2006–2008
model years
14
vehicle entries
Official summary
Gmc: fuel rail pressure sensor performance dtc p0191. May set due to actual fuel rail pressure not dropping quickly enough when the engine is shut off. *pe
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.