Product Description
Tooling Required
U760E U760F Oversized Lockup Control Valve Kit
Toyota/Lexus vehicles equipped with U760E and U760F transmissions often exhibit several common concerns related to wear in the lockup control valve bore. Oscillation of the lockup control valve and stroking of the plunger valve in its sleeve results in wear that prevents full hydraulic control of the lockup circuit. TCC slip, RPM surge, harsh downshifts and/or slip codes can accompany the TCC apply/release concerns that develop in these cases. Sonnax oversized lockup control valve kit 47740-31K allows the bore to be refurbished, restoring normal TCC operation.
- Hardcoat anodized aluminum valves combat premature wear
- Annular grooves help center valves in bore and sleeve to reduce future side-load wear
Symptoms
- TCC slip codes
- TCC apply & release concerns
- RPM fluctuation
- Harsh downshifts
Cause
Wear at the lockup control valve bore and plunger/sleeve assembly results in loss of hydraulic control, creating TCC engagement and timing issues.
Correction
Recover hydraulic control and renew TCC performance by reconditioning bore and installing Sonnax oversized lockup control valve kit.
Contents
- Control Valve
- Spring
- Plunger Valve
- Plunger Sleeve
