DIY: How To Replace Your Torque Converter Clutch Solenoid (GM)

Here is where you have to be really careful. Look and study the valve body assembly so you have a picture of it in your mind. Be careful of the small check balls and springs that they don't pop out and get lost. I found that sometimes sketching a "map" is very helpful when you are in unknown territory.

» Remove the valve body cover. Refer to "Valve Body Cover" and "Transaxle Support Assembly".
» Remove the wiring harness from the case electrical connector and leads from the pressure switch.
» Remove the torque converter clutch bolt (334) to auxiliary valve body.
» Remove the 3rd clutch pressure switch (335).
» Remove the second clutch switch (338), if applicable.

Reassembly: Torque Converter Clutch (TCC) Solenoid

» Reinstall the second clutch switch, if applicable. TIGHTEN Switch to 97 inch pounds.
» Reinstall the 3rd clutch pressure switch. TIGHTEN Switch to 97 inch pounds.
» Reinstall the torque converter clutch bolt to the auxiliary valve body. Install a new O-ring.
» Reinstall the wire harness to the case and switches.
» Reinstall the valve body cover with a new gasket.