A/T - 41TE Harsh 2-1 Gear Downshift

NO.:
21-16-92

GROUP:
Transmission

DATE:
Nov. 2, 1992



SUBJECT:
Harsh 2-1 Downshift 41TE Transaxle



MODELS:


1989-1992
(AA) Acclaim/Spirit/LeBaron Sedan
(AC) Dynasty/New Yorker/New Yorker Salon
(AG) Daytona
(AJ) LeBaron Coupe/LeBaron Convertible
(AS) Caravan/Grand Caravan/Caravan CV
Voyager/Grand Voyager/Town and Country
1990-1992
(AY) Imperial/New Yorker Fifth Avenue


SYMPTOM/CONDITION:


Some 41TE transaxles may exhibit a harsh 2-1 downshift. This condition may occur when coasting to a stop or after applying pressure to the accelerator pedal at low vehicle speeds. Changes have been made to the Transmission Control Module (TCM) for the 1993 model year that significantly reduce 2-1 downshift harshness.

These new service controllers should only be used to repair vehicles with specific customer dissatisfaction with harsh 2-1 downshifts.


DIAGNOSIS:


1. Confirm the 41TE transaxle fluid level is correct using the procedure in the appropriate service manual.

2. Use the DRB II to read Diagnostic Trouble Codes (DTC) that may exist and Clutch Volume Indexes (CVI's) to determine if transaxle repair is appropriate.

3. Road test the vehicle to confirm 2-1 downshift harshness.






PARTS REQUIRED



REPAIR PROCEDURE:


This bulletin involves replacing the Transmission Control Module (TCM).

1. Use the procedure in the appropriate vehicle service manual to replace the TCM.

2. When returning the vehicle to the customer, advise him/her that for the full benefit of the new TCM to be realized, approximately one week of driving will need to be completed.


POLICY:
Reimbursable within the provisions of the warranty.


TIME ALLOWANCE:
Labor Operation No. 08-19-05-98 ......0.5 Hrs.


FAILURE CODE:
58 - Internal Defect