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Service bulletin SB0001C005

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 id615679
Published by NHTSA2001-01-28
Manufacturer's numberSB0001C005
Manufacturer's date2000-12-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

NHTSA's summary

SOME 1999 - CURRENT MODEL VEHICLES, DRIVEN DURING EXTREME COLD WEATHER CONDITIONS, MAY EXPERIENCE PCV SYSTEM FREEZE UP, CAUSING THE REAR MAIN SEAL TO LEAK. *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, Exhaust and emissions, EGR valve

Vehicles listed
ISUZU NPR1999
ISUZU NQR1999

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