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Service bulletin 99018

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 id610236
Published by NHTSA2000-04-21
Manufacturer's number99018
Manufacturer's date1999-08-30
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

NHTSA's summary

SOME VEHICLES BUILT WITHIN VIN 19UYA2 ... XL005044 AND 19UYA2 ... XL005158 MAY EXHIBIT A MALFUNCTION INIDCATOR LAMP ON AND DIAGNOSTIC TROUBLE CODE P0401 (INSUFFICIENT EGR FLOW) IS SET. *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

Trouble codes named

P0401

Vehicles listed
ACURA CL1997, 1998, 1999

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

Other bulletins for the same vehicles and component
990452002-02-05. Service bulletin. INFORMATION REGARDING EGR PORT CLOGGING. *YH
0110012001-12-14. Service bulletin. INFORMATION ON WARRANTY EXTENSION ON EGR SYSTEM CLOGGING.*JB
990452001-12-13. Service bulletin. SUBJECT REGARDING WARRANTY EXTENSION ON EXHAUST GAS RECIRCULATION PORT CLOGGING. *JB
990452000-05-08. Service bulletin. PRODUCT UPDATE CAMPAIGN ON REPLACING PCV HOSE ROUTING. *TT