Harsh TCC Apply

WARNING: This page is about a different car, the 2003 Saturn Vue and 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The following are possible causes and corrections for this condition:

The TCC control valve is worn, sticking or binding - replace TCC control valve.
The TCC control valve spring is worn, sticking or damaged - replace TCC control valve spring.
The TCC regulator valve is worn, sticking or binding - replace TCC regulator valve.
The TCC regulator apply valve spring is worn, sticking or damaged - replace TCC regulator apply valve spring.
The line limit valve is worn, sticking or binding - replace line limit valve.
The line limit valve spring is worn, sticking or damaged - replace line limit valve spring.
The actuator feed limit valve is worn, sticking or binding - replace actuator feed limit valve.
The actuator feed limit valve spring is worn, sticking or damaged - replace actuator feed limit "1" valve spring.
The primary limit valve is worn, sticking or binding - replace primary limit valve.
The primary limit valve spring is worn, sticking or damaged - replace primary limit valve spring.