Econoline E350 1 Ton V8-5.4L Prop SOHC VIN Z (1998)
1997-1999 F-250 LD
1997-2003 E SERIES, EXPEDITION, EXPLORER, F-150, RANGER, WINDSTAR
1999-2003 F SUPER DUTY
2000-2003 EXCURSION
2001-2003 ESCAPE, EXPLORER SPORT TRAC, EXPLORER SPORT
LINCOLN:
1997-1998 MARK VIII
1997-2002 CONTINENTAL
1997-2003 TOWN CAR
2000-2003 LS
1998-2003 NAVIGATOR
2002-2003 BLACKWOOD
MERCURY:
1997-1999 TRACER
1997-2000 MYSTIQUE
1997-2003 GRAND MARQUIS, SABLE
1999-2002 COUGAR
1997-2003 MOUNTAINEER
This article supersedes TSB 03-9-8 to update the vehicle lines and Service Procedures.
ISSUE
Some vehicles may exhibit a Malfunction Indicator Lamp (MIL) illuminated with Diagnostic Trouble Codes (DTCs) P0442, P0455, P0456, P0457 or
P1442 or a "Check Fuel Cap" Lamp illuminated with DTC P0457 for the Evaporative Emission System. This may be caused by loose or leaking hoses,
loose or broken fuel cap, a leak at the top of the fuel filler pipe neck, etc.
ACTION
Use the Rotunda Leak Detector Smoke Machine (Part 218-00001) or equivalent, to locate and repair leaks in the Evaporative Emission System. Refer to
the following Service Procedure for details.
Definitions of Acronyms
^
CVS Canister Vent Solenoid
^
DTC Diagnostic Trouble Code
^
EVAP Evaporative Emissions System
^
EVMV Electronic Vapor Management Valve
^
FTP Fuel Tank Pressure
^
MIL Malfunction Indicator Lamp
^
NGS New Generation STAR Tester
^
PID Parameter Identifier WDS Worldwide Diagnostic System
SERVICE PROCEDURE
NOTE
THIS PROCEDURE SUPERSEDES ALL OTHER PROCEDURES PUBLISHED IN SERVICE MANUALS AND TSB ARTICLES.
NOTE
MANY EVAP LEAKS ARE CAUSED BY A LOOSE OR FAULTY CAP. IF THE FUEL CAP IS SUSPECT DURING VISUAL INSPECTION,
DO NOT DISTURB THE FUEL CAP UNTIL THE DIAGNOSTIC PROCEDURE IS COMPLETE. IF THE LEAK VERIFICATION FAILS, THE
CAP CAN BE REPOSITIONED OR REPLACED AND THE TEST REPEATED. THIS ACTION WILL ISOLATE THE CAP FROM THE REST
OF THE EVAP SYSTEM AS A POTENTIAL CONCERN. IF DEBRIS ON THE SEALING SURFACE OF THE CAP APPEARS TO BE THE
SOURCE OF THE LEAK, CLEAN THE CAP AND REINSTALL.
OVERVIEW OF TEST PROCEDURES
