Sonnax says: The converter release regulator valve provides lube pressure regulation and contributes to the timing of the converter clutch apply/release action. Bore wear will cause converter clutch slippage and related codes and affect lockup clutch apply and release quality.
Installing the Sonnax wear-resistant oversized valve restores circuit pressure regulation and control timing of the converter clutch apply/release action.
For further information and installation see Sonnax Product Info and Sonnax Instruction Data Sheets on our webpage www.newco-autoline.de or on Sonnax webpage www.sonnax.com - all information of third parties is beyond our responisbility