Emissions - MIL ON/Driveability Issues/DTC's Set

Article No.
04-11-1

06/08/2004

DRIVEABILITY - STREAMLINED DIAGNOSTIC
PROCEDURE FOR VEHICLES WITH MIL ON AND
DTCS P0401, P0402, P1400 OR P1401 - ADDITIONAL
SYMPTOMS MAY INCLUDE RUNS ROUGH, LACKS
POWER, SURGE, POOR FUEL ECONOMY

FORD:
2000-2002 TAURUS
2001-2002 CROWN VICTORIA, FOCUS, MUSTANG
2001 EXPLORER USPS
2001-2002 E SERIES, ESCAPE, EXPEDITION, EXPLORER SPORT TRAC, EXPLORER SPORT, F-150, RANGER, WINDSTAR
2002-2003 EXPLORER

LINCOLN:
2001-2002 TOWN CAR

MERCURY:
2000-2002 SABLE
2001-2002 COUGAR, GRAND MARQUIS
2002-2003 MOUNTAINEER

This article supersedes TSB 04-3-1 to update service part information and applications.

ISSUE





Some vehicles may exhibit a malfunction indicator lamp (MIL) "ON" with or without the following symptoms: Rough Running, Lack of Power, Surge or Poor Fuel Economy, along with diagnostic trouble codes (DTC's) P0401, P0402, P1400 or P1401. This may be caused by an intermittently functioning tube-mounted delta pressure feedback EGR (DPFE) sensor (Figure 1).

ACTION

For vehicles equipped with a tube-mounted DPFE sensor, perform the following diagnostic procedure and repair action. This procedure supersedes the diagnostic procedure in the PC/ED Manual for the issue described above.

NOTE
ALL LISTED APPLICATIONS CAN NOW BE SERVICED WITH DPFE SENSOR 4U7Z-9J460-AA





NOTE
THIS ARTICLE APPLIES TO THE FULL MODEL YEAR FOR ALL VEHICLES SHOWN EXCEPT THE FOLLOWING:

^ 2002 Taurus/Sable 3.0L DOHC - Built After May 2002

^ 2002 Taurus/Sable 3.0L OHV - Built After February 2002

^ 2002 Econoline And F-150 4.2L OHV - Built After April 9, 2002

^ 2003 Explorer 4dr/Mountaineer 4.6L SOHC - Built After February 2, 2003

SERVICE PROCEDURE

1. Retrieve continuous DTC(s).

2. If P0401, P0402, P1400 or P1401 are present, turn ignition OFF and replace the DPFE sensor.

3. Clear continuous DTC(s).

4. Perform key on engine off (KOEO) and key on engine running (KOER) self-test.





Labor Operations





Parts Block

OTHER APPLICABLE ARTICLES: NONE

WARRANTY STATUS:
Eligible Under The Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage.

DEALER CODING
CONDITION
BASIC PART NO. CODE
9J460 42





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