Firebird V6-191 3.1L (1990)
Transmission Speed Sensor: All Technical Service Bulletins
A/T - 4L60 Fluid Leaks At Speed Sensor/Manual Update
Bulletin Number:
91-7-2
Reference Number:
037105R
Publish Date:
7/90
Subject:
TRANSMISSION FLUID LEAKS AT SPEED SENSOR (NEW SPEED SENSORS)
Models
Affected:
1990-91 FIREBIRD WITH 4L60 TRANSMISSION
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 application.
Parts are currently available from GMSPO.
Use Labor Code:
K6310
Labor Time:
0.5 hrs.
