K 1500 Suburban 4WD V8-5.3L VIN Z Flex Fuel (2003)
Transmission Speed Sensor: Service and Repair
Input Shaft Speed Sensor
4L80-E/4L85-E
Input Shaft Speed Sensor Replacement
Removal Procedure
1. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
2. Disconnect the input speed sensor electrical connector (1).
3. Remove the input speed sensor bolt.
4. Remove the input speed sensor (1).
5. Inspect the input speed sensor (1) for any evidence of damage.
Installation Procedure
1. Lubricate the input speed sensor seal with automatic transmission fluid.
