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Service bulletin 98024

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 id601216
Published by NHTSA1998-07-08
Manufacturer's number98024
Manufacturer's date1998-04-16
NHTSA componentFUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM

NHTSA's summary

EXHIBITING A CONDITION IN WHICH THE FOUR FUEL INJECTION TIMING GEAR BOLTS MAY LOOSEN OR FATIGUE DUE TO THE TORQUE OF THE CRANKSHAFT. *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

Fuel system, Fuel injection

Vehicles listed
CHEVROLET W35001999
CHEVROLET W45001999
CHEVROLET W55001999
GMC W35001999
GMC W45001999
GMC W55001999

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