4
Remove the inspection cover to check fro abnormal wear. In some 
cars, there is a plastic cover located on the bottom of the bell 
housing. (The bell housing is the part that holds the clutch and is 
bolted to the engine block.) This plastic... cover is called an 
inspection cover and can be popped off to view the clutch. Remove the 
inspection cover with a flathead screwdriver and look for any signs of 
abnormal wear. If your clutch is going bad, there will be substantial 
visible damage---not just black powder.
5
Remove the 
transmission. Beyond these indicators, the only other way to check if 
your clutch is going bad is to remove the transmission. Unless you have 
advanced automotive knowledge and equipment, this will need to be done 
at a transmission shop.
Courtesy of Ehow