A/T - 4L60 Fluid Leaks at Speed Sensor
90Chevy33Number: 91-33-7A
Section: 7A
Date: July 1990
Corp. Bulletin No.: 037105R
Subject: TRANSMISSION FLUID LEAKS AT SPEED SENSOR
Model and Year: 1990-91 CAPRICE AND CAMARO WITH 4L60 AUTOMATIC TRANSMISSION
TO: ALL CHEVROLET DEALERS
CONDITION:
Transmission fluid leaks at the vehicle speed sensor.
CAUSE:
The leak may be at the sensor seal to the transmission or at the electrical connector to the sensor.
CORRECTION:
A new series of transmission speed sensors with improved anti-leak characteristics should be used to correct the condition.
Use: P/N 10456087 REPLACES P/N 10456020
P/N 10456088 REPLACES P/N 10456021
P/N 10456089 REPLACES P/N 10456022
See Parts Book for proper numbers.
Parts are currently availabile from GMSPO.
Labor Operation Number: K6310
Labor Time: 0.5 hrs.
The attached art work/repair information supplements the unit repair for speed sensor/ speedometer driven gear given in Section 7 of the service manual.