November 24, 2015
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.
Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.