January 16, 2014
Toyota vehicles equipped with listed transmissions may exhibit driveability problems caused by erratic oil pressure delivered to various solenoids. Low cooler flow, solenoid codes, impaired TCC operation, and various shift concerns are common results of this abnormal pressure. As the OE solenoid modulator valve oscillates and strokes over time, bore wear occurs that prevents proper regulation of solenoid supply pressure, flooding or starving the solenoids and causing erratic solenoid operation. Reconditioning the bore and installing Sonnax oversized solenoid modulator valve kit 147741-05K shores up the hydraulic integrity of this circuit for renewed solenoid performance and trouble-free shifting.
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.
January 16, 2014
December 03, 2013
September 30, 2005
Gregg Nader
Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.