Inspect the lever pin.
Replace the turbine housing assembly if worn excessively.
Inspect the valve and valve seat for cracks or erosion.
Replace the turbine housing assembly if worn excessively.
Actuate the lever by hand to be sure that the shaft rotates freely and is not seized.
Check for excessive movement between the shaft and bushing.
Replace the turbine housing if the shaft and bushing are damaged or seized.
