Skylark L4-144 2.4L DOHC VIN T SFI (1997)
Shift Solenoid: Description and Operation
Shift Controls
The Hydra-matic 4T60-E uses two ON/OFF shift solenoid valves with a 2-port design that provides for all forward gear ranges. These shift solenoid
valves work together in a combination of ON or OFF sequences to direct fluid pressures to the various shift valves and apply components. The following
shows the solenoid state for each gear range:
Park, Reverse, Neutral
Solenoid 1-2 ................................................................................................................................................................................................................. ON
Solenoid 2-3 ................................................................................................................................................................................................................. ON
First
Solenoid 1-2 ................................................................................................................................................................................................................. ON
Solenoid 2-3 ................................................................................................................................................................................................................. ON
Second
solenoid 1-2 ................................................................................................................................................................................................................ OFF
Solenoid 2-3 ................................................................................................................................................................................................................. ON
Third
solenoid 1-2 ................................................................................................................................................................................................................ OFF
Solenoid 2-3 ................................................................................................................................................................................................................ OFF
Fourth
Solenoid 1-2 ................................................................................................................................................................................................................. ON
Solenoid 2-3 ................................................................................................................................................................................................................ OFF
