September 30, 2005
Anatomy of a Transmission: Oil Flow in the Pump-PR-Converter-Cooler Lube Circuits
Gregg Nader
A worn secondary pressure regulator valve in vehicles with listed Aisin AW, VW/Audi, and Mini 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, TCC slip, and poor shift quality. Sonnax secondary pressure regulator valve kit 15741-11K 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.
September 30, 2005
Gregg Nader
November 07, 2014
Brian Wing
October 16, 2014
March 26, 2019
Jim Dial
Either a Wet Air Test or a Vacuum Test in the location shown, result in leakage. Vacuum test must hold a minimum of 18.