Jatco/Nissan JF015E (RE0F11A) transmissions can have complaints associated with a worn plunger valve and sleeve which includes increased RPM during acceleration, no lockup and engine stall on engagement. This is due to the wear at the inside of the lockup control plunger valve sleeve allowing oil to escape, which affects the timing and quality of the lockup clutch apply and release action. Installing Sonnax torque converter lube regulator plunger valve kit 33741F-07K can restore correct clearances and maintain proper hydraulic control of the lockup clutch.
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.