722.6

Requires Tool

Symptoms:

• TCC apply & release concerns
• TCC codes
• Lube failures

Cause:
Excessive valve to bore clearance

Correction:
The Sonnax TCC lockup clutch regulator kit salvages the worn valve body by restoring the hydraulic integrity of the TCC lockup clutch regulator circuit.

Excessive clearance at the outboard spool fed by the PWM solenoid allows modulating lube to exhaust. The resulting pressure loss causes reduced TC lockup clutch apply pressure, creating TCC-related complaints. Bore wear at the inboard spool can contribute to reduced line pressure. The Sonnax kit salvages the valve body with an oversized hard-anodized valve and a custom spring.

• Oversized valve salvages valve bodies with worn TC lock-up clutch regulator valve bore.
• Kit restores normal converter charge and cooler flow.
• Valve design corrects harsh or no TCC apply, TCC slipping and burn-up.

Contents:

• Valve
• Spring

SONNAX Installation Instructions