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Service bulletin 030604051

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 id10004313
Published by NHTSA2003-12-02
Manufacturer's number030604051
Manufacturer's date2003-10-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

REVISED DIAGNOSTIC TROUBLE CODE (DTC) P0146 HO2S CIRCUIT INSUFFICIENT ACTIVITY BANK 1 SENSOR 3. *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

Trouble codes named

P0146

Vehicles listed
CHEVROLET ASTRO1997
GMC SAFARI1997

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
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0006050012005-02-15. Service bulletin. BOOM TYPE NOISE DURING ENGINE WARM UP. THIS SERVICE BULLETIN REPLACES 000605001A. *EH
30812004-11-17. Service bulletin. SERVICE ENGINE SOON LIGHT AND P0300 WHEN TOWING, CRUISING UPHILL OR ON HARD ACCELERATION. *TT
012252004-07-08. Service bulletin. ENGINE COOLANT LEAK AT INTAKE GASKET. * MJ
000605001A2004-03-02. Service bulletin. CONCERNS WITH BOOM TYPE NOISE DURING ENGINE WARM-UP HEARD IN THE VEHICLE PASSENGER COMPARTMENT. *TT
0306010242003-12-04. Service bulletin. RATTLE NOISE IN ENGINE. *TT
030601024A2003-12-02. Service bulletin. RATTLE NOISE IN ENGINE. *TT
3110012002-03-05. Service bulletin. SOME VEHICLES MAY EXHIBIT AN EXHAUST NOISE, RATTLE NOISE AT 550 RPM. *TT
676114A1997-08-21. Service bulletin. ENGINE NOISE (INSTALL VALVE STEM OIL SEAL). *TW