Product Description
Fits: U140E/F / U240E / U241E · 1998-on
TransGo SKU140 (U140 SHIFT KIT® Valve Body Repair Kit) for 1998 and newer Toyota and Lexus vehicles with the U140, U240 or U241 series automatic transmission (U140E/F, U240E, U241E). It fixes shuttle shifts, neutrals on the 2-3 shift, TCC slip codes and solenoid performance codes.
Specifications
| Fits | U140, U240, U241 |
|---|---|
| Years | 1998-on |
Why it fails
The first cause is a worn TCC boost valve and bushing. Once they wear, the computer can no longer control the lock-up clutch apply rate properly.
The other area is a worn solenoid modulator valve bore. Like an AFL valve or solenoid pressure regulator valve, the solenoid modulator valve limits the pressure going to the solenoids. Its valve and spring are calibrated so feed pressure never exceeds a set PSI, whatever main line pressure is, so the solenoids are not fed more fluid than they can regulate. If feed pressure is too high or too low, solenoid output follows, causing shift quality complaints, codes, and low or high main line pressure.
The kit's drop-in USA-made hardened steel TCC boost valve and bushing restore hydraulic circuit integrity. The redesigned drop-in solenoid modulator valve, spring and bushing restore function in the existing worn bore with no tooling. The kit pairs with the U140-BOOST kit.
What's included
- USA-made hardened steel TCC boost valve and bushing
- USA-made hardened steel solenoid modulator valve, spring and bushing
- 0.055” Drill bit
Notes
When the TCC boost valve and bushing wear out, the computer can no longer control the apply rate of the lock-up clutch as it is supposed to.
Similarly, a new redesigned drop-in solenoid modulator valve system does not require any tooling.
