M/T (6 Speed) - Won't Stay in Reverse Gear
NUMBER: 21-006-05GROUP: Transmission
DATE: February 24, 2005
THIS BULLETIN IS BEING PROVIDED IN ADVANCE. DO NOT ORDER PARTS OR PERFORM ANY ACTIONS RELATED TO THIS BULLETIN UNTIL MARCH 07, 2005.
SUBJECT:
NSG370 6-Spd Transmission - May Not Remain In Reverse Gear When Selected
OVERVIEW:
This bulletin involves replacing both the internal shift subassembly and the mainshaft reverse gear components.
MODELS:
2005 (KJ) Liberty / Cherokee
2005 (TJ) Wrangler
NOTE:
This bulletin applies to vehicles equipped with a NSG-370 6-speed manual transmission (sales code DEH).
SYMPTOM/CONDITION:
Upon shifting the 6-speed manual transmission into Reverse, the customer may notice that reverse gear may not remain engaged.
This condition may follow/develop shortly after an accidental mis-shift into reverse has occurred. While the vehicle is moving forward and already in a forward gear, instead of shifting into another forward gear the reverse gear is incorrectly selected. Though reverse can not be obtained during the mis-shift attempt, damage to the internal shift subassembly and reverse gear may occur which may later prevent full reverse gear engagement when reverse is selected properly. The customer should be made aware of proper shift procedures.
This condition may also occur if the center floor console and/or shifter boot are not positioned properly.
DIAGNOSIS:
1. Verify that the center floor console and shifter boot are not preventing the transmission shifter from fully engaging reverse. Verify that the console is centered properly to the shifter. Verify that the shifter boot is installed properly.
2. If the center console and shifter boot are properly installed, and the transmission fails to remain in reverse as designed, perform the Repair Procedure.
PARTS REQUIRED:
SPECIAL TOOLS/EQUIPMENT REQUIRED:
REPAIR PROCEDURE:
Replace the manual transmission internal shift subassembly and reverse gear components. Refer to detailed disassembly and assembly repair procedures in TechCONNECT which are available in Group 21 - Transmission and Transfer Case / Manual Transmission - NSG370.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.