Possible Clues:

• Gene moved around in motor
• Car part that purrs
• It purrs when it's cared for
• Driving force?
• Fair amount of omen from spirit is ultimately false or it's a powerful source for movement?
• Donkey, for one, bearing trap in Tyneside
• Detroit pistons are here
• Search ___
• Mechanical device as source of power
• Word with steam or fire