One of the most important internal systems in your vehicle’s engine is the timing chain or timing belt. Every engine has either a timing belt (made of rubber) or a timing chain (made of steel) which connect the camshaft to the crankshaft and ensure the valves and pistons open and close in the right sequence. If this sequence is interrupted or mistimed, severe engine damage may occur, so remember to always have your timing components changed at the manufacturer’s specified intervals.