Grand Prix V6-191 3.1L (1989)
1987-1990 - driven sprocket support Vespel ring seals cracked or broken. Check for damaged or mispositioned four lobe support seals under
the Vespel rings.
6.
Check the 2nd clutch apply passage which between the sprocket support and bushing. Look for the bushing being out of position or worn. If either
condition is found, the driven sprocket support should be replaced. Blow air through the passage to check for restrictions or foreign material. If
full apply pressure cannot get through to the clutch, it will slip and wear.
7.
Check for a leak at the sealing surface where the driven sprocket support contacts the channel plate.