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This bulletin involves reprogramming the Powertrain Control Module (PCM) with new software and replacing the torque converter as required. SYMPTOM/CONDITION: The vehicle operator may experience one or more of the following symptoms: **Transmission Shudder - (42RLE), (41TE JS), (62TE JS)** a. This condition can only occur after the vehicle has been driven and the torque convertor is past the break in period. Torque Converter break in can be confirmed with the StarSCAN®. Torque Converter Pull In Bump - (41TE/62TE JS) a. This condition can occur due to abrupt torque converter clutch engagement during EMCC initialization. DIAGNOSIS: Using a Scan Tool (StarSCAN®) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all engine/transmission systems are functioning as designed. If DTC’s other than those listed above are present record them on the repair order and repair as necessary before proceeding further with this bulletin. REPAIR PROCEDURES BY SYMPTOM/CONDITION: Transmission Shudder - (42RLE), (41TE / 62TE JS)**: 1. Is the vehicle an LX/LE/L2 that has had Service Bulletin 21-002-07 or 21-002-07 REV. A been performed already? Reprogram the PCM with the latest software using the flash procedure listed in the flash procedure below. After PCM reprogramming, the following must be performed: a. Clear the Variable Line Pressure (VLP) Counters, found in the StarSCAN® Misc Function Menu. VLP Clear Counters must be completed on all models with a 62TE transmission or if DTC P1745 appears on other transmission applications. FLASH REPAIR PROCEDURE - USING THE INTERNET TO RETRIEVE THE FLASH FILE: When performing this Repair Procedure, the software release level in the StarSCAN®; must be programmed with 8.03 level software or higher. The software release level is visible in the blue header at the top of the StarSCAN® screen.
Tags : torque converter clutch, powertrain control module pcm, powertrain control module, torque convertor, jeep service, flash repair, applications flash, transmission applications, vehicle operator, scan tool, level software, software release, flash file, diagnostic procedures, dtc
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