A car's transmission allows a vehicle to accelerate forward through moving various internal gears. Each car manufacturer has a specific transmission model, such as a 4T65E, that is installed during production. The 4T65E transmission uses a pressure control solenoid (PCS) for regulating transmission oil pressure through electrical impulses. However, the PCS solenoid may develop problems, requiring access into the 4T65E transmission for a replacement and possible rebuild procedure.
Detach the black, or negative, wire from the car's battery.
Raise the vehicle's front end up with a car jack.
Remove the transmission's drain plug and allow the old automatic transmission fluid (ATF) to empty into a plastic container.
Detach the transmission's oil pan, and adjoining gasket, from the transmission's main body with a screwdriver or nut driver.
Unplug the solenoid's electrical connector. The connector has a two-pin configuration.
Detach the fix plate protecting the solenoid body by removing the screws or nuts with a screwdriver or nut driver.
Detach the PCS solenoid by removing it with a wrench. The solenoid may be torqued tightly into the control valve assembly. Turn the solenoid carefully to prevent any warping of the control valve.
Visually inspect the transmission before replacing the PCS solenoid. Verify that no leaks or cracks are visible. Repair or replace gaskets as needed to stop any leakage.
Tighten a new PCS solenoid into the control valve assembly with a torque wrench. Make sure to torque the PCS solenoid between five and 6.5 foot-pounds for a proper connection.
Reverse Steps 4 through 6 to close the transmission's body.
Add new ATF into the transmission. Confirm that no leaks appear and the fluid level is between the maximum and minimum levels.
Lower the car from the car jack and reattach the battery's negative cable. Start the engine and road test the vehicle.
