Dynasty L4-153 2.5L SOHC VIN K TBI (1992)
Valve Body: Customer Interest
A/T - 41TE Buzz In Reverse
NO.:
21-14-92
GROUP:
Transmission
DATE:
Nov. 2, 1992
SUBJECT:
Buzz In Reverse
NOTE:
THIS BULLETIN APPLIES TO ALL 41TE EQUIPPED VEHICLES WITH TRANSMISSIONS BUILT BETWEEN MAY 6, 1991 (BUILD DATE
CODE 0874) AND AUGUST 5, 1992 (BUILD DATE CODE 1331).
MODELS:
1992 - 1993
(AA)
Spirit/Acclaim/Lebaron Sedan
(AC)
Dynasty/New Yorker/New Yorker Salon
(AG)
Daytona
(AJ)
Lebaron Coupe/Lebaron Convertible
(AP)
Shadow/Shadow Convertible/Sundance
(AS)
Caravan/Grand Caravan/Caravan CV
Voyager/Grand Voyager/Town & Country
(AY)
Imperial/New Yorker Fifth Avenue
DISCUSSION:
Some 41TE transaxles may produce a buzzing noise when the gear selector is in the reverse position. This buzz condition occurs primarily in 1992
model year and some early built 1993 model year 41TE transaxles.
Two changes have been made to the valve body assembly to eliminate the reverse buzz condition.
1.
A 1 mm notch was incorporated in the valve body housing at the torque convertor control valve on November 1, 1991 (build date code 1053).
2.
A new valve body separator plate with reduced "T" and "Y" orifice diameters was introduced on August 5, 1992 (build date code 1331).
3.
Refer to the illustration for build date code location.
DIAGNOSIS:
The noise which is similar to power steering pump noise, can be verified using the following procedure:
1.
Engage the parking brake and apply the service brake.
