September 30, 2005
Anatomy of a Transmission: Oil Flow in the Pump-PR-Converter-Cooler Lube Circuits
Gregg Nader
Required tool kit F-126740-TL19 is no longer in production. Check with your distributor for availability.
Will not work on '17-later valve bodies with a blocker valve/plug in the outboard thermal cooler bypass location.
Various TCC concerns and lube failures are common problems with Ford 6R140 transmissions. These issues can often be traced to excess wear in the converter limit valve bore, which allows escape of crucial circuit control pressures. Reconditioning the bore and installing Sonnax oversized converter limit valve kit 126740-19K eliminates this wear and revives normal TCC and lube operation.
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 24, 2015
Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.