Harsh Torque Converter Clutch Apply or Release

Checks	Cause
DEFINITION: An unacceptably quick TCC apply or release occurs in third or fourth gear, Drive or Manual third range, with the throttle held steady.
Control Valve Body Assembly	The TCC regulator apply valve (327) is stuck or binding. The TCC regulator apply valve spring (326) is missing or damaged. The TCC control valve spring (336) is missing or damaged. The control valve body spacer plate gaskets assembly (396) are misassembled or contain incorrect parts. TCC PWM Solenoid faulty.