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Service bulletin 1800402

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 id629151
Published by NHTSA2002-03-27
Manufacturer's number1800402
Manufacturer's date2002-01-28
Replaces180600C
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

SUBJECT REGARDING 1999 MY ENGINE SPARK KNOCK. *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
DODGE DAKOTA1999
DODGE DURANGO1999
DODGE RAM1999
DODGE RAM VAN1999

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

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