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Service bulletin 00040

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id6091421
Published by NHTSA2000-10-11
Manufacturer's number00040
Manufacturer's date2000-06-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

SOME VEHICLES MAY HAVE A HARD START, NO START, OR ROUGH RUNNING ENGINE CAUSED BY WATER ENTRY INTO THE FUEL SYSTEM THROUGH THE AIR INLET SEPARATOR. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Vehicles listed
CHEVROLET P31998 to 1999
GMC P31998 to 1999

Listing a model year does not mean every vehicle of it is concerned: the document says which.