Description
6L80E / 6L90E TransGo Clutch Select Valve and TCC Regulator Valve Kit, 2006-On, 6L8 CS-TCC.
2006 and later General Motors and BMW vehicles equipped with 6L45, 6L50, 6L80 and 6L90 automatic transmissions often come in with complaints of lock-up cycling or a surging sensation, as well as shift solenoid or TFP performance codes due to sticking clutch select valves.
The lock up cycling complaint is often due to the poor resolution (accuracy) of the original equipment TCC regulator valve and spring in relation to the TCC solenoid function. The torque converter clutch regulator valve function is to regulate the torque converter clutch apply pressure. The computer varies the pulse width modulation of the TCC solenoid to control the slip speed of the lock-up clutch. The OE design valve and spring calibration does not provide adequate resolution under all driving conditions which leads to the TCC slip cycling. The new design TCC regulator valve and spring provides a higher degree of accuracy in controlling the slip speed, especially at lower road speeds. The difference in drivability is quite remarkable.
Corrects / Prevents / Reduces:
- Shift solenoid performance codes or false P0751 due to sticking or dragging clutch select valves
- Low speed TCC surge
- TCC cycling during cylinder deactivation
- Extends converter clutch lining durability
This 6L80E / 6L90E TransGo Clutch Select Valve and TCC Regulator Valve Kit Includes:
- Precision USA-made hardened steel TCC regulator valve
- TCC regulator valve calibration spring
- (2) USA-made hardened steel clutch select valves
- (2) Clutch select valve springs for units with updated OEM separator plate
