A worn secondary pressure regulator valve in vehicles with Aisin AW TR-60SN and VW/Audi 09D transmissions can cause several problems. Overheating the fluid, bushings, and torque converter can all be caused by a worn secondary pressure regulator valve. Drivability issues include harsh Reverse engagement, TCC slip resulting in RPM surge, and poor shift quality. Sonnax secondary pressure regulator valve kit 25741-11K is designed to correct the pressure outputs from the secondary pressure regulator valve and fix these drivability issues.
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.
January 26, 2015
September 30, 2005
March 26, 2019
Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.