Flywheel is a vital part of any motor vehicle and is the foundation of the clutch system because the flywheel is an energy storage device. It also determines the amount of power available to make the car move. Vibration: the car vibrates when using the clutch: When the spring mount mechanism on the flywheel fails, it is then unable to diminish the tremors felt when shifting. Slippage: the car slips in and out of gear. The slipping is caused by intensified friction and oil contamination as well as plate grinding. Burning Smell: the burning smell could be the result of too much heat in the clutch facings.