Torque Converter Clutch Shudder
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The key to diagnosing TCC shudder is to note when it happens and under what conditions.
TCC shudder which is caused by the transmission, should only occur during the apply or release of the converter clutch. Shudder should never occur after the TCC piston is fully applied.
If the shudder occurs while the TCC is applying, the condition could be within the transmission or the torque converter. Something is causing one of the following conditions to occur:
- Something is not allowing the clutch to become fully engaged.
- Something is not allowing the clutch to release.
- The clutch is releasing and applying at the same time.
One of the following may be causing the conditions to occur:
- Leaking turbine shaft seal rings
- A restricted release orifice
- Defective friction material on the TCC piston