Common complaints with listed Ford transmissions include delayed lockup, shudder, no lockup or converter codes. If there is excessive wear at the plunger valve, regulated converter charge oil can leak to exhaust. Due to this regulated converter charge oil always being present, either as release or apply pressure, severe leakage at the sleeve can result in TCC slip or no apply condition. Sonnax bypass clutch control plunger valve kit 76948-64K restores hydraulic integrity and eliminates these problems.
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.