TSB # 21-016-05 Delayed Engagement After Extended Off Period

Discussion in 'Technical Service Bulletins and Recalls' started by Old Navy, Nov 17, 2005.

  1. Old Navy

    Old Navy New Member

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    Location:
    SwampEast MO
    NUMBER: 21-016-05
    GROUP: Transmission
    DATE: September 01, 2005

    THIS BULLETIN IS BEING PROVIDED IN ADVANCE. DO NOT ORDER PARTS OR
    PERFORM ANY ACTIONS RELATED TO THIS BULLETIN UNTIL SEPTEMBER 09,
    2005.
    SUBJECT:
    RFE Transmission - Delayed Engagement After An Extended Off Period
    OVERVIEW:
    This bulletin involves verifying the build date of the transmission, and if
    necessary,
    replacement of the transmission cooler return filter inside the
    transmission.
    MODELS:
    2005 - 2006 (DR) Ram Truck
    2005 - 2006 (HB) Durango
    2005 - 2006 (KJ) Liberty / Cherokee
    2005 - 2006 (ND) Dakota
    2005 - 2006 (WK / WH) Grand Cherokee
    2006 (XK) Commander
    NOTE: This bulletin applies to vehicles equipped with the a 45RFE or a
    545RFE
    automatic transmission (sales code DG4 or DGQ respectively).
    SYMPTOM/CONDITION:
    The customer may experience an initial delayed shift engagement following an
    extended
    off (not running) period of time, generally after being parked overnight.
    The initial shift
    engagement may feel like a delay or slip when a transmission gear (reverse
    or drive) is
    first selected after engine start.
    The customer may also experience a MIL illumination. Investigation may
    determine that
    the MIL is due to one or more of the following Diagnostic Trouble Codes
    (DTC's):
    P0868 - Line Pressure Low. This DTC will be the most frequently occurring
    DTC for
    the delayed shift condition.
    P0731 - Gear Ratio Error In 1st.
    P0736 - Gear Ratio Error In Reverse.
    P0841 - LR Pressure Switch Rationality.
    NUMBER: 21-016-05
    GROUP: Transmission
    DATE: September 01, 2005
    P0876 - UD Pressure Switch Rationality.
    P0944 - Loss Of Hydraulic Pump Prime.
    The condition may be caused by a suspect cooler return filter with a part
    number of
    04799662AB. The suspect cooler return filter may allow transmission fluid to
    drain back
    out of the torque converter when the engine is not running.
    DIAGNOSIS:
    1. Turn the ignition to the "OFF" position.
    2. Raise the vehicle on a suitable lift.
    Fig. 1 TRANS IDENTIFICATION NUMBER
    1 - TRANSMISSION IDENTIFICATION (SERIAL AND PART) NUMBER - 20 DIGIT
    3. Inspect for the transmission build date (Julian date) (Fig. 1). The
    transmission build
    date can be determined by inspection of the 20 digit transmission
    identification number
    (DDDYxxxxxPpartnumber). The transmission identification number is stamped on
    the
    left side (driver side) of the transmission oil pan flange. The first four
    (4) digits of the
    transmission identification number are the transmission build date, in
    Julian date
    format. An example of a transmission identification number would be :
    101510492P52119684AA. The first three digits ( 101 ) of the identification
    number
    equal the day of the year, in this case 101 equals April 11. The fourth
    digit ( 5 ) of the
    identification number equals the calendar year, in this case 5 equals 2005.
    So 1015
    equals April 11, 2005.
    4. Determine if the vehicle's transmission was built on or between one of
    the two sets of
    Julian date build ranges listed below:
    a. Julian date 0425 (February 11, 2005) to Julian date 0455 (February 15,
    2005). 0425
    to 0455.

    b. Julian date 1015 (April 11, 2005) to Julian date 2345 (August 22, 2005).
    1015 to
    2345.

    21-016-05 -2-
    5. If the vehicle has the above condition, and if the transmission Julian
    build date is on or
    between the range of dates listed above, perform the Repair Procedure.
    PARTS REQUIRED:
    NOTE: The correct cooler return filter will not be available until September
    09, 2005.
    Qty. Part No. Description
    1 04799662 Filter, Cooler Return
    4 05013457AA Fluid, Automatic Transmission, MS-9602
    ATF+4, Quart
    1 05010884AA Mopar ATF-RTV
    NOTE: DO NOT use a replacement cooler return filter with a part number of
    04799662AB. This filter is suspect of causing the above condition. The
    filter
    part number is stenciled on the side of the filter case.
    SPECIAL TOOLS/EQUIPMENT REQUIRED:
    8321 Oil Filter Wrench
    REPAIR PROCEDURE:
    Fig. 2 Transmission Filters - 4X4 Shown
    1 - PRIMARY OIL FILTER
    2 - COOLER RETURN FILTER
    3 - COOLER RETURN FILTER BYPASS VALVE
    4 - VALVE BODY
    -3- 21-016-05
    NOTE: All cooler return filters with the "AB" suffix (04799662AB) are
    suspect. The
    above condition may be corrected by replacing a suspect "AB" filter with a
    new cooler return filter whose part number is 04799662 (with no suffix or
    with
    a suffix that is other than the "AB" level).
    NOTE: A replacement 04799662 cooler return filter may come packaged with a
    separate threaded adapter stud. The threaded adapter stud is used to attach
    the cooler return filter to the transmission. Inspect the stud and note end
    without threads. Install the stud end without the threads into the cooler
    return filter and tighten the stud-to-filter connection to 18.6 Nm (165 in.
    lbs.).
    Once the threaded adapter stud has been installed to the cooler return
    filter,
    install the assembled cooler return filter to the transmission and tighten
    the
    filter to 14.1 Nm (125 in. lbs.)
    Use the procedures outlined in TechCONNECT® ( Service Information Tab / 21 -
    Transmission Transaxle / Automatic - 45RFE 545RFE / Fluid / Standard
    Procedure / Fluid
    and Filter Replacement) to replace the cooler return filter.
    POLICY:
    Reimbursable within the provisions of the warranty.
    TIME ALLOWANCE:
    Labor Operation
    No:
    Description Amount
    21-55-02-90 Filter, Cooler Return - Replace 0.6 Hrs.
    21-55-02-60 Optional Equipment: Skid Plate Equipped
    (2005-2006 KJ / 2005 ND / 2005-2006 WK WH)
    0.2 Hrs.
    FAILURE CODE:
    P8 New Part

    I had no symptom other then sometimes a hard shift, dealer did the TSB without any hassle and the tech even said he sealed the trans filler tube and showed me the seal used and that they all leaked water.

    Even if you don't have the TSB done or need it done, you should at least have the transmission filler tube where it goes into the transmission sealed with the RTV sealer to prevent water getting into the tranny. Yes it's common problem and maybe one day they will get a real fix that won't need to be checked on a regular basis.