Mountaineer AWD V6-4.0L VIN K Flex Fuel (2003)
Technical Service Bulletin # 02-21-6
Date: 021028
Engine Controls/Emissions - Exhaust Sulfur Smell
Article No.
02-21-6
10/28/02
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DRIVEABILITY - EXCESSIVE SULFUR SMELL FROM EXHAUST
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EXHAUST - EXCESSIVE SULFUR SMELL FROM EXHAUST
FORD:
2001-2002 EXPLORER SPORT
2002 EXPLORER SPORT TRAC
2002-2003 EXPLORER
MERCURY:
2002-2003 MOUNTAINEER
Article 02-16-6 is being republished in its entirety to update the Service Procedure and model years.
ISSUE
Some vehicles may exhibit excessive sulfur smell from the exhaust under certain drive modes. This may be due to the highly active state of a new
catalyst, calibration factors, underbody catalyst temperature, and amount of sulfur present in the fuel.
ACTION
Identify year, model, and build date to identify appropriate service procedure. For applications that require installing exhaust wrap, use good quality
stainless steel worm-drive hose clamps for best longevity, similar to what would commonly be used for exhaust heat shield rattle issues.
OTHER APPLICABLE ARTICLES: NONE
SUPERSEDES: 02-16-6
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage And Emissions Warranty Coverage
OPERATION
DESCRIPTION
TIME
022106A
Install Exhaust Wrap And
1.4 Hrs.
Perform Drive Sequence.
2002-2003
Explorer/Mountaineer 4.0L
Vehicles Built 1-14-02
Through 12-02-02, 4.6L
Built Prior To 12-02-02
022106B
Install Exhaust Wrap,
1.6 Hrs.
Reprogram Powertrain
Control Module And
Perform Drive Sequence.
2002-2003
Explorer/Mountaineer 4.0L
Built Prior To 1-14-02
022106C
Replace Catalytic
0.8 Hr.
Converter And Reprogram
Powertrain Control Module.
2001-2002 Explorer Sport
Vehicles Built 7-24-00
Through 3-4-02, 2002
Sport Trac 11-02-01
Through 3-4-02
022106D
Replace Catalytic
0.6 Hr.
