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rotten egg smell from car

Discussion in 'Stock 2002 - 2005 Explorers' started by jlrapp8, October 14, 2010.

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    1. jlrapp8

      jlrapp8 Active Member

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      Hello all, i noticed today while my car was running at idle it has a nasty smell. kind of like rotten eggs. anyone know anything about this?
       
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    3. zukman

      zukman "Home of Misfit Crawlers" Elite Explorer

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      yup cats are gone
       
    4. Xdropped22s

      Xdropped22s New Member

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      sorry but what does "cats are gone" Mean
       
    5. RaistliN

      RaistliN New Member

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      Catalytic converters needs to be replaced
       
    6. swetrid

      swetrid Well-Known Member

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      Ford has tsb
      Printable View (37 KB)
      TSB
      02-21-6 DRIVEABILITY - EXCESSIVE SULFUR SMELL FROM EXHAUST
      EXHAUST - EXCESSIVE SULFUR SMELL FROM EXHAUST

      Publication Date: October 15, 2002

      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.

      SERVICE PROCEDURE

      2002-2003 4 DOOR EXPLORER/MOUNTAINEER 4.0L

      Vehicles Built 1/14/02 Through 12/02/2002

      At latest level for engine calibration.

      Install Exhaust wrap on the pipes between the light-off and the underbody catalyst referring to the instruction sheet in the kit.
      Refer to Drive Sequence heading to purge stored sulfur from catalyst.
      See Contributing Factors heading for additional information.
      NOTE: CONVERTER REPLACEMENT OR RECALIBRATION IS NOT NECESSARY.



      Vehicles Built Before 1/14/02

      Verify that WDS is at the latest level, B21.0 or higher.
      Reprogram the PCM with the latest calibration.
      Install Exhaust wrap on the pipes between the light-off and the underbody catalyst referring to the instruction sheet in the kit.
      Refer to Drive Sequence heading to purge stored sulfur from catalyst.
      See Contributing Factors Heading for additional information.
      NOTE: DO NOT REPLACE THE CONVERTER.



      2002-2003 4 DOOR EXPLORER/MOUNTAINEER 4.6L

      Vehicles Built Prior To 12/02/2002

      Install Exhaust wrap on the pipes between the light-off and the underbody catalyst referring to the instruction sheet in the kit.
      Refer to Drive Sequence heading to purge stored sulfur from catalyst.
      See Contributing Factors Heading for additional information.
      NOTE: CONVERTER REPLACEMENT OR RECALIBRATION IS NOT NECESSARY.



      2001-2002 2 DOOR EXPLORER SPORT 4.0L

      7/24/00 Through 3/4/02 With 5R55E Transmission

      Refer to 2001/2002 Explorer Sport/Sport Trac Workshop Manual, Section 309-00. Remove the old catalytic converter and install the revised converter 2L2Z-5E212-DA.
      Verify that WDS is at the latest level, B21.0 or higher.
      Reprogram the PCM with the latest calibration only.
      See Contributing Factors Heading for additional information.
      NOTE: DO NOT REPLACE CONVERTER MORE THAN ONCE.



      2002 2 DOOR EXPLORER SPORT/SPORT TRAC 4.0L

      Vehicles Built After 3/27/02

      At latest level for engine calibration and converter, no service action will improve the situation.

      See Contributing Factors Heading for additional information.
      3/4/02 Through 3/27/02

      Refer to 2002 Explorer Sport/Sport Trac Workshop Manual, Section 309-00. Remove the old catalytic converter and install the revised converter 2L2Z-5E212-AB only.
      See Contributing Factors Heading for additional information.
      NOTE: DO NOT REPLACE CONVERTER MORE THAN ONCE OR RECALIBRATE.



      2002 2 DOOR EXPLORER SPORT/SPORT TRAC 4.0L M5R4 MANUAL TRANSMISSION

      11/2/01 Through 3/4/02 With Manual Transmission

      Refer to 2002 Explorer Sport/Sport Trac Workshop Manual, Section 309-00. Remove the old catalytic converter and install the revised converter 2L2Z-5E212-DA only.
      See Contributing Factors Heading for additional information.
      NOTE: DO NOT REPLACE CONVERTER MORE THAN ONCE OR RECALIBRATE.



      2002 SPORT TRAC 4.0L 5R55E TRANSMISSION

      11/2/01 Through 3/4/02 With 5R55E Transmission

      Refer to 2002 Explorer Sport/Sport Trac Workshop Manual, Section 309-00. Remove the old catalytic converter and install the revised converter 2L2Z-5E212-DA.
      Verify that WDS is at the latest level, B21.0 or higher.
      Reprogram the PCM with the latest calibration.
      See Contributing Factors Heading for additional information.
      NOTE: DO NOT REPLACE CONVERTER MORE THAN ONCE.



      DRIVE SEQUENCE AFTER REPAIRS COMPLETED

      Check engine oil and coolant levels. Verify both are at specified levels before driving vehicle. Perform highway driving at normal highway speeds for 30 miles. The optimum engine speed for this drive sequence is 3,000 to 4,500 rpm, and this can be accomplished by manually selecting the transmission gear state. The goal of the drive procedure is to maintain a constant high temperature level in the exhaust system through the use of increased engine speed. The combination of increased temperature and driving will provide a sulfur cleaning environment for the catalyst system.

      CONTRIBUTING FACTORS TO SULFUR SMELL

      Factors outside of engineering control may lead to a sulfur odor. A large contributing factor is the amount of sulfur in the fuel. Replacing a Catalytic Converter multiple times will not alleviate the sulfur odor. Several catalyst replacements on the same vehicle may actually increase customer sensitivity to an exhaust odor concern. Based on some driving habits the converter does not get hot enough to burn out stored sulfur residue and can produce a sulfur odor. For example:

      Extended Idle - Increase sulfur odor
      Stop and go driving - Increase sulfur odor
      Trailer Towing - Decrease sulfur odor
      Heavy Loads - Decrease sulfur odor
      Short trips - Increase sulfur odor
      Abrupt accel/decel - Decrease sulfur odor
      Hotter driving conditions - Decrease sulfur odor
      Hilly terrain - Decrease sulfur odor
      Canceling Overdrive - Decrease sulfur odor
      Catalysts with 5,000-10,000 Miles (8,000-16,000 Kilometers) are likely to have a sulfur smell due to the highly active state of the new catalyst. Refer to symptom chart #22 of PCED for appropriate year. Additives in fuels (Ethanol, Methanol, ETC.) can cause sulfur odor, suggest using a different fuel source. Geographic variations on sulfur odor intensity are possible due to different refineries supplying fuel to different areas of the country. California regulated fuel will exhibit less sulfur odor.

      Experiment with different fuel brands. Some contain more sulfur than others, which can lead to an increase in sulfur odor from the converter. Sulfur odors are an aromatic phenomenon and do not cause any durability or safety concerns with vehicle operation.

      To summarize for the customer, explain that sulfur is in the fuel used and the catalyst system on their vehicle as a result of the fuel and driving environment which creates a condition where sulfur has been stored in their exhaust system. The service action performed allows the sulfur to pass through the exhaust system and to clean the existing sulfur deposits. During the initial cleansing of the catalyst it is expected that a sulfur odor may still be present, and this odor may change from the 'rotten egg smell' to that of a 'burning match'. The odor will cease with time.

      PCM CALIBRATION INFORMATION
      Application Old Part Number (-12A650-) Old Tear Tag New Part Number (-12A650-) New Tear Tag Old Calibration New Calibration NGS/WDS Qualifier
      4.0L 1L2F-AGM LAE1 1U7Z-BZA ZPZ0 1U51AF0B15 1U51AF0B15 WDS Release B21.1 or Later
      4.0L 1L2F-ACM CNK1 1U7Z-CBA CVF0 1U51BG0A15 1U51BG0A15 WDS Release B21.1 or Later
      4.0L 1L2A-BL SIM0 1U7Z-CTA TFJ0 1U51AG0M15 1U51AG0M15 WDS Release B21.1 or Later
      4.0L 1L2A-AEB AUE1 1U7Z-CYA YTD0 1U51AF0B21 1U51AF0B21 WDS Release B21.1 or Later
      4.0L 1L2A-AFB XPB1 1U7Z-CZA ZAR0 1U51BG0A21 1U51BG0A21 WDS Release B21.1 or Later
      4.0L 1L2A-AGB EAB1 1U7Z-DFA FMM0 1U51AG0M21 1U51AG0M21 WDS Release B21.1 or Later
      4.0L 1L2A-AHB KVO1 1U7Z-DGA GBH0 1U51A40E21 1U51A40E21 WDS Release B21.1 or Later
      2 Door 4.0L 1U7A-CGA GZM0 1U7Z-CGB GZM1 1U71AG0510 1U71AG0510 WDS Release B21.1 or Later
      2 Door 4.0L 1U7A-CJA JJU0 1U7Z-CJB JJU1 1U71AG0510 1U71AG0510 WDS Release B21.1 or Later
      2 Door 4.0L 1U7A-CHA HBC0 1U7Z-CHB HBC1 1U72AG0506 1U72AG0506 WDS Release B21.1 or Later
      2 Door 4.0L 1U7A-CKA KNW0 1U7Z-CKB KNW1 1U72AG0506 1U72AG0506 WDS Release B21.1 or Later
      4.0L 1U7A-CMA MQS0 1U7Z-CMB MQS1 1S12A40506 1S12A40506 WDS Release B21.1 or Later
      4.0L 1U7A-CLA LFA0 1U7Z-CLB LFA1 1S11A40510 1S11A40510 WDS Release B21.1 or Later


      Obtain an Authorized Modifications Decal (FPS 8262 - obtainable through DOES II, 25/pkg) and list the date, dealer number, and summary of modifications performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.

      AUTHORIZED MODIFICATIONS

      THE FOLLOWING MODIFICATIONS HAVE BEEN MADE:
      Reprogrammed Powertrain Control Module (PCM) Per TSB 02-21-6



      THESE MODIFICATIONS HAVE BEEN APPROVED, AS APPROPRIATE, BY EPA AND CARB.
      DEALER NUMBER:------------------------------------------DATE:

      CHANGE AUTHORITY:

      FPS 8262 9/78 FORD MOTOR COMPANY PRINTED IN U.S.A.



      PART NUMBER PART NAME
      2L2Z-4K277-AA Exhaust Wrap Kit
      2L2Z-5E212-DA 4.0L 5R55E Catalyst
      2L2Z-5E212-AB 4.0L Catalyst



      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 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 1.4 Hrs.
      022106B Install Exhaust Wrap, Reprogram Powertrain Control Module And Perform Drive Sequence. 2002-2003 Explorer/Mountaineer 4.0L Built Prior To 1-14-02 1.6 Hrs.
      022106C Replace Catalytic 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 0.8 Hr.
      022106D Replace Catalytic Converter Only. 2002 Explorer Sport/Sport Trac 3-4-02 Through 3-27-02 With Automatic Transmission, 11-02-01 Through 3-4-02 With Manual Transmission 0.6 Hr.

      DEALER CODING
      BASIC PART NO. CONDITION CODE
      5F250 42

      OASIS CODES:
      403000, 499000


      --------------------------------------------------------------------------------

      NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by "do-it-yourselfers". Do not assume that a condition described affects your car or truck. Contact a Ford, Lincoln, or Mercury dealership to determine whether the Bulletin applies to your vehicle.

      Copyright © 2002 Ford Motor Company
       
    7. waskly

      waskly Well-Known Member

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      not really, the op has an 02, this was common that tsb posted did jack, it might make it better, it might not.
       

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