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Symptoms:

  • Low cooler flow
  • Solenoid performance codes
  • Low control pressure
  • Bang shifts
  • Shift concerns
  • Bind-up
  • TCC cycling
  • TCC slip

Cause:

Solenoid modulator valve bore wear allows erratic solenoid supply pressure.

Correction:

Recover hydraulic control and restore normal solenoid supply pressure by reconditioning the bore and installing Sonnax oversized solenoid modulator valve kit.

A750E, A750F, A760E, A760F, A760H, A761E, A960E, A960F, AB60E, AB60F

Oversized Solenoid Modulator Valve Kit
Part No. 147741-05K


You need this if... View Instructions

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.

  • Hardcoat anodized aluminum valve combats premature wear
  • Annular groove helps center valve in bore to reduce future side-load wear
  • Valve
  • End Plug

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.

Toyota A760E/F/H Series Valve Body Layout

A760e f h vbl thumb

Toyota A750E/F Series Valve Body Layout

A750e f vbl thumb

January 16, 2014

Toyota A750E-A761E Identification Guide

Topics: Identification Guides Transmission Toyota/Lexus A760H Transmission AB60E Transmission AB60F Transmission A761E Transmission A750F Transmission A760E Transmission A750E Transmission A760F Transmission

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December 03, 2013

Toyota A750E/F, A760E/F/H, A761E Vacuum Test Guide

Topics: Vacuum Test Guides Vacuum Testing Transmission Toyota/Lexus A760H Transmission A761E Transmission A750F Transmission A760E Transmission A750E Transmission A760F Transmission

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  • 147741 05k combo
  • 147741 05k

You need this if...

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

  • 147741 05k