WenmarOpen by Wenmar Pro

Service bulletin 01C1

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 id621540
Published by NHTSA2001-09-25
Manufacturer's number01C1
Manufacturer's date2001-06-18
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

SUBJECT REGARDING A RECALL TO RESET THE VARIABLE NOZZLE TURINE (VNT) MECHANISM ON 2000 AND 2001 MODEL YEAR SERIES 50 EGR ENGINES TO ELIMINATE POOR ACCELERATION AND CUSTOMER COMPLAINTS. *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
DETROIT DIESEL DETROIT

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