December 30, 2013
Symptoms:
- TCC apply & release concerns
- TCC codes
- Lube failures
Cause:
Excessive valve to bore clearanceCorrection:
Sonnax oversized TC lockup clutch regulator kit salvages the worn valve body by restoring the hydraulic integrity of the TC lockup clutch regulator circuit.722.6
Oversized TC Lockup Clutch Regulator Valve Kit
Part No. 68942-10K
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Tooling:
- F-68942-TL10
- VB-FIX
You need this if... View Instructions Find a Distributor
In Mercedes 722.6, 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. Sonnax oversized TC lockup clutch regulator valve kit 68942-10K salvages the valve body with an oversized hardcoat anodized valve and a custom spring.
- Oversized valve salvages valve bodies with worn TC lockup 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
- Valve
- Spring
Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.
Mercedes 722.6 Valve Body Layout
