Tracker 4WD L4-2.0L VIN C (1999)
EGR Valve: All Technical Service Bulletins
Emissions - EGR Valve Cleaning
Bulletin No.: 03-06-04-008
Date: January 13, 2003
INFORMATION
Subject:
Exhaust Gas Recirculating (EGR) Valve Cleaning Prior to Potential Replacement
Models:
1999-2000 Chevrolet Tracker
with 2.0L Engine (VIN C - RPO L34)
This bulletin is being issued to inform dealers to properly and thoroughly clean the exhaust manifold whenever an EGR valve is diagnosed as sticking
open or inoperative. Sometimes a cleaning of the exhaust manifold may be sufficient rather than automatically replacing the EGR valve.
In some cases, the EGR valve may have been contaminated because the exhaust manifold was not adequately cleaned, prompting contaminants such as
weld slag or drill trailings to remain in the passageway/valve seat.
Simplified cleaning procedures were put in place as an alternative to EGR valve replacement. These cleaning steps are outlined in Corporate Bulletin
Number 00-06-04-027.
Disclaimer
