Tool Required VB-FIX Required

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Symptoms:
  • Shift concerns
  • Solenoid codes
  • TCC apply & release concerns
Cause:

Side-loading of the steel OE solenoid modulator valve causes bore wear, resulting in excess solenoid supply pressure.

Correction:

Restore normal operation by reconditioning the bore and installing the Sonnax oversized solenoid modulator valve kit.

Tool Required VB-FIX Required

U760E, U760F

Oversized Solenoid Modulator Valve Kit

Part No.

47740-25K

Oversized Solenoid Modulator Valve Kit
  • 47740-25k_combo

  • Oversized Solenoid Modulator Valve Kit

  • 47740-24k-25k_chart

Small_47740-25k_combo Small_47740-25k Small_47740-24k-25k_chart

U760E, U760F

Oversized Solenoid Modulator Valve Kit

Part No. 47740-25K

  • Valve
  • End Plug

Complaint:

  • Shift concerns
  • Solenoid codes
  • TCC apply & release concerns

Cause:

Side-loading of the steel OE solenoid modulator valve causes bore wear, resulting in excess solenoid supply pressure.


Correction:

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.

  • Hardcoat anodized aluminum valve combats premature wear.
  • Annular groove aids in centering the valve in the bore which helps prevent future wear and side loading

Required Tools

Related Parts

You need this if...

A vacuum test at the port indicated fails to hold at least 18 in-Hg.

  • Test Locations

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Valve Body Layouts

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.

Valve Body Layout Toyota U660E/F, U760E/F

Related Tech Articles

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