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.
Requires Tool
Symptoms:
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.
Contents:
SONNAX Installation Instructions