Product Description
6L80 6L90 6L45 6L50 HD TCC Regulator Valve Spring
Vehicles with GM 6L45, 6L50, 6L80 and 6L90 transmissions may have complaints of vibration, shudder or roughness, particularly while driving at low speeds with a steady throttle on a level road. This complaint may be more noticeable when driving up an incline. These symptoms can be caused by a broken TCC regulator valve spring in the lower valve body, which causes the TCC slip speed to drop to zero.
With a capable scan tool, monitor the TCC slip during steady throttle input. If the TCC slip remains a constant zero RPM during the shudder or vibration, check the lower valve body for a broken TCC regulator valve spring and replace as needed with Sonnax TCC regulator valve spring 104740-45K.
Symptoms
- Vibration
- Shudder condition
Cause
Broken torque converter clutch regulator valve spring causing TCC slip speed to drop to zero.
Correction
Replace the broken OE spring with a direct replacement Sonnax spring.
Contents
- Valve
