Tool Required VB-FIX Required
- Lube failures
- TCC apply & release concerns
- TCC codes
Excessive valve to bore clearance
The Sonnax TCC lockup clutch regulator kit salvages the worn valve body by restoring the hydraulic integrity of the TCC lockup clutch regulator circuit.
Oversized TC Lockup Clutch Regulator Valve Kit
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 68942-10K 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.
You need this if...
Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.
Click here to view PDF if instructions do not appear below.
Valve Body Layouts
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