Firebird V6-173 2.8L VIN L 2-bbl HP (1983)
![background image](/pontiac/firebird/v6-173_2.8l_vin_l_2-bbl_hp/Page-1244001.png)
Torque Converter Clutch Solenoid: Description and Operation
Solenoid--mounted in the automatic transmission--locks-up the torque converter when activated by the ECM.
-
When the vehicle reaches a specified speed the ECM energizes the solenoid---causing the torque converter to mechanically couple the engine
to the transmission.
-
When the brake is applied, or other conditions indicate that the transmission should operate as a normal--fluid coupled--transmission the ECM
de-energizes the solenoid.