A/T - A604 Transaxle Fluid Burping From Fill Tube

91chrysler01

SUBJECT: 1990-91 A604 Transaxle


Fluid Foaming (Burping) Under Certain Operating Conditions


NO.: 21-02-91

GROUP: TRANSMISSION


DATE: Jan. 28, 1991


MODELS:

1990 - 1991 (AA) SPIRIT/ACCLAIM/LEBARON
(AC) DYNASTY/NEW YORKER/LANDAU/SALON
(AG) DAYTONA
(AJ) LEBARON COUPE/LEBARON CONVERTIBLE
(AS) CARAVAN/GRAND CARAVAN/CARAVAN C/V
VOYAGER/GRAND VOYAGER/TOWN & COUNTRY
(AY) IMPERIAL/NEW YORKER FIFTH AVENUE

SYMPTOM/CONDITION:


Some 1990 - 91 vehicles equipped with the A-604 transaxle built prior to transaxle date code K XXX 0651 XXXX may experience an ATF fluid foaming (burping) condition. The foaming conditions may result in fluid exiting the transaxle at the fill tube and/or the transaxle vent.


The foaming condition is most likely to occur if high internal transaxle temperatures are experienced. High internal temperatures may occur; while the vehicle is operating in high ambient temperatures when towing a trailer, fully loaded, driving up a grade, or driving into a strong head wind.


The foaming condition may be the result of a reaction between the RTV used in transaxle production and the ATF.

DIAGNOSIS:


The foaming (burping) condition cannot normally be duplicated at the dealership. The customer complaint will usually describe a small accumulation of oil under their vehicle after it has been operating in high ambient temperatures when towing a trailer, fully loaded, driving up a grade, or driving into a strong head wind.

Inspect the transaxle. If there is evidence of transmission fluid in the area of the fill tube and/or vent, perform the repair procedure.

If the fill tube and vent are dry, inspect the transaxle and engine for source of possible coolant, engine oil or transaxle fluid leaks and repair as required.

PARTS REQUIRED:

2 - 1/2 Ounce Containers, Anti-Foaming Additive PN 4549637


REPAIR PROCEDURE


This repair involves cleaning the transaxle case and adding the anti-foaming additive to the transaxle.


1. Check and adjust the transmission fluid level as required.


2. Using a suitable cleaning solvent, clean the transaxle case, removing all traces of transmission fluid residue.


3. Add two, 1/2 ounce containers of anti-foaming additive PN 4549637 through the transaxle fill tube.


POLICY: Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:

Labor Operation No. 21-00-10-90 . . . . . . . . . . . 0.3 Hrs.

FAILURE CODE: 41-Foreign material