A/T - New Wiring Harness With Inline Temp Sensor

Number: 92-272-7A

Section: 7A

Date: AUGUST 1992

Corporate Bulletin No.: 277129R

ASE No.: A2

Subject:
NEW WIRING HARNESS ASSEMBLY WITH IN-HARNESS TEMPERATURE SENSOR INFORMATION

Model and Year:
1991-92 C/K, R/VP AND G TRUCKS WITH 4L80-E/4L80-EHD AUTOMATIC TRANSMISSION

Transmission Applications:
1991-92 HYDRA-MATIC 4L80-E/4L80-EHD (MT1)

Transmission Models:
All Models

Subject:
New Wiring Harness Assembly (In-harness Temperature Sensor New Service Package)

Vehicle Applications:
C/K, R/V and P-Trucks, G-Van








(Figures 2 and 3) New Wiring Harness Assembly with an in-line temperature sensor. Replaces current design Temperature Sensor.





Start of Production Date: (Figure 1)

Starting March 31, 1992 (Julian Date 090) all 1992 HYDRA-MATIC 4L80-E/4L80-EHD Transmissions were built with a new Wiring Harness Assembly which has an in-line temperature sensor.

Service Procedure:

Transmissions built prior to this date can be serviced with the previous design Sensor. To service the new wiring harness, leave the current sensor in the previous valve body unconnected. There is no connector for the sensor. To service the previous valve body assembly use the new wiring harness assembly and the valve body assembly together, available in a service package. New valve body assembly cannot be serviced with previous wiring harness. Caution: Use care when removing the wiring harness connectors. Broken connectors require a new harness assembly.








Service Parts Information (see illustrations).