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Service bulletin EG00699

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 id606186
Published by NHTSA1999-08-12
Manufacturer's numberEG00699
Manufacturer's date1999-06-18
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

NHTSA's summary

SUBJECT REGARDING 5VZ OXYGEN SENSOR IMPROVEMENT FOR VEHICLES BUILT BEFORE CERTAIN VIN RANGES. *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

Vehicles listed
TOYOTA TACOMA1996, 1997, 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
WLK0524182018-07-02. Service bulletin. Provides instructions for returning Walker Exhaust Systems' BM Premium Pipe (P/N 55096). Because the part did not have the oxygen sensor fitting drilled out, it will not allow the sensor to be installed.
T-TT-0010-10 Rev2018-04-02. Service bulletin. Tech Tip: Low battery voltage can contribute to a MIL "ON" condition for P0335 (Crankshaft Position Sensor Circuit) and/or P0340 (Camshaft Position Sensor Circuit) due to inconsistent rotational speed of the engine's crankshaft.
46162005-08-15. Service bulletin. 1999 TACOMA DIAGNOSTICS - ENGINE (2RZ-FE, 3RZ-FE) - REPAIR MANUAL CORRECTION. 00400-RM673-U1. *TT '00 TACOMA. 00400-RM712-U1. *TT
037042004-11-03. Service bulletin. ENGINE BANK 1 AND BANK 2 A/F AND 02 IDENTIFICATION. VARIOUS TOYOTA MODELS. *TT
TC010312002-02-07. Service bulletin. SUBJECT REGARDING HEAD GASKET REPLACEMENT. *YD
0101992000-05-23. Service bulletin. SUBJECT REGARDING 5VZ OXYGEN SENSOR IMPROVEMENT. *TT
EG011992000-04-14. Service bulletin. INFORMATION INTRODUCING DESIGN CHANGES TO THE 5VZ OXYGEN SENSOR TO REDUCE POSSIBILITY OF MOISTURE CONTACTING THE CERAMIC ELEMENT. *TT
EC012991999-12-29. Service bulletin. SUBJECT REGARDING RADIATOR LEAK FROM OVERFLOW PIPE. *TT
EG011991999-12-23. Service bulletin. SUBJECT REGARDING 5VZ OXYGEN SENSOR IMPROVEMENT. *TT
EG012991999-12-23. Service bulletin. VEHICLES MAY EXPERIENCE A RADIATOR LEAK FROM THE COOLANT OVERFLOW PIPE HOSE. *TT