SOLENOID MODULATOR VALVE KIT
# 78792K

Solenoid Modulator Valve Kit * * Reamer & V/Body Fix Tool Required

SOLENOID MODULATOR VALVE KIT

Symptoms:

  • Slips & flares
  • Harsh upshifts
  • Bind-up
  • Harsh Reverse
  • TCC cycling
  • TCC slip
  • Excess Reverse pressure & distorted housings
  • Low cooler flow
  • Overheating

Cause:
Excessive solenoid pressure is caused by line pressure side-loading the steel solenoid modulator valve and the continuous oscillation of the valve, which wears the cast aluminum bore.

Correction:
Sonnax solenoid modulator valve and high-grade aluminum sleeve allows the bore to be refurbished, and prevents side-loading of the valve and future wear.


In Toyota/Lexus U140E, U140F, U240E and U241E 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 causing shift and TCC concerns. The Sonnax solenoid modulator valve kit restores normal solenoid supply pressures.

  • High-grade aluminum sleeve resists wear and provides porting to prevent valve side-loading
  • Hardcoat anodized aluminum valve combats premature wear, incorporates annular grooves to prevent side-loading
  • Replacement spring resets regulated pressure to OE specification

Content:

  • Valve
  • Sleeve
  • Spring

SONNAX Installation Instructions

Type of Product: Sundry Parts
Qty Needed:
Years:
Alternative #:
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