TCC codes, shuttle or loss of lockup can indicate a bypass control problem in listed Ford applications. A worn bypass clutch control bore or valve will lower converter and TCC apply pressure. Sonnax oversized bypass clutch control valve and tool kit 76948-31 salvages affected valve bodies, allowing you to ream the bore to accept the oversized valve, restoring proper function to the bypass control circuit.

• Salvages valve bodies with wear of the bypass clutch control bore or valve
• Corrects TCC codes, shuttle/loss of lockup, converter overheat and reduced/lost cooler flow
• Provides increased valve support for longer service life