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.
  • U140E, U140F, U240E, U241E Solenoid Modulator Valve Kit 57917E-13K
  • U140E, U140F, U240E, U241E Solenoid Modulator Valve Kit 57917E-13K

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.

U140E, U140F, U240E, U241E Solenoid Modulator Valve Kit Vacuum Test Locations