Inspect the flywheel when the vehicle experiences excessive transmission gear wear, transmission jumping out of gear, driveline vibration, clutch pedal vibration, clutch slippage, pilot bearing noise, or Throwout Bearing noise. Conduct a visual inspection of the flywheel for signs of cracking, warpage, scoring, or heat checking. If any of these conditions exist, the flywheel must be removed and resurfaced at an automotive machine shop.