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Symptoms:

  • Flare shifts
  • Bump shifts
  • Bang shifts
  • Clutch failure
  • Inconsistent shift quality
  • Shift codes

Cause:

Wear at the various end plugs allows critical circuit leakage of solenoid modulator, secondary regulator, and line pressures. These pressure losses impair control of the clutches, resulting in various shift complaints and eventual failure.

Correction:

Install the Sonnax O-ringed end plugs to prevent oil pressure loss at the plugs.

U151E, U151F, U250E

O-Ringed End Plug Kit
Part No. 27741-20K

View Instructions

Wear at the various OE end plugs in Toyota U151E/F, U250E units allows critical circuit leakage of solenoid modulator, secondary regulator and line pressures. These pressure losses impair control of the clutches, resulting in various shift complaints and eventual failure. The Sonnax O-ringed end plug kit 27741-20K contains all of the circuit sealing end plugs required to prevent this critical oil pressure loss.

  • End plugs install quickly with no reaming required
  • Kit contains all of the circuit sealing end plugs required for the complete valve body
  • End Plugs (4) 11mm dia.
  • O-Rings, Small (6) 2 extra
  • End Plugs 12mm dia.
  • O-Rings, Medium (2) 1 extra
  • End Plugs (5) 13mm dia.
  • O-Rings, Large (7) 2 extra

January 21, 2013

Toyota U151E/F, U250E Vacuum Test Guide

Topics: Vacuum Testing Vacuum Test Guides Transmission Toyota/Lexus U250E Transmission U151F Transmission U151E Transmission

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  • 27741 20k