Description
4L80E / 4L85E TransGo TCC Regulator Valve, 1991-2013, 4L80E-TCC.
The TCC regulator valve function is to regulates the torque converter clutch apply pressure. The computer varies the pulse width modulation of the TCC PWM solenoid, which regulates the apply pressure of the lock-up clutch. Because of the constant PWM solenoid induced oscillation, over time, excessive wear of the bore occurs. As a result, the computer loses the ability to control the lock-up clutch apply rate and slip rate properly due to the loss of TCC apply pressure.
Optional ON/OFF lockup in 2 easy steps for high power hot rods or overloaded trucks:
Convert lockup into an ON/OFF system for improved holding with a shorter apply time for severe duty applications.
Corrects / Prevents / Reduces:
- TCC slip
- Codes 39, 68, P0741 and P0894
- Damaged torque converter due to slip
This TransGo TCC Regulator Valve includes:
- Drop-in precision ground USA-made steel valve
- Scarf-cut sealing ring
- Orange spring for stock lock-up pressure and feel
- Green spring for slightly elevated TCC pressure and slightly firmer lock-up apply
- O-ring (for sizing only)
- 0.125” drill bit for optional ON/OFF lock-up
- 0.063” drill bit for optional ON/OFF lock-up
- Rivet for optional ON/OFF lock-up
