Side-loading of the steel OE solenoid modulator valve causes bore wear, resulting in excess solenoid supply pressure.
Restore normal operation by reconditioning the bore and installing the Sonnax oversized solenoid modulator valve kit.
In Toyota and Lexus U760E/F units, the steel OE solenoid modulator valve is prone to side-loading in the bore. This side-loading action, combined with repeated oscillation of the valve, prematurely wears the cast aluminum bore. The result is line pressure leakage and excessive SL, SLT, and SLU solenoid pressure, which floods the solenoids and creates shift quality concerns, solenoid codes, and deviation of proper control pressures available to various valves. Sonnax oversized solenoid modulator valve kit 47740-25K allows you to recondition the bore and install improved components to restore normal solenoid supply pressures.
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.
December 09, 2013
Topics: Identification Guides Transmission Toyota/Lexus U760F Transmission U660F Transmission U760E Transmission U660E TransmissionRead Now
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A vacuum test at the port indicated fails to hold at least 18 in-Hg.