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.