Most newer vehicles with timing chains do not need the chain serviced or replaced unless the engine has been improperly maintained. This Nissan 240SX has over 300,000 miles and the chain is beginning to rattle and make noise. Over time, the tensioner has become worn and the chain has stretched slightly. We will be pulling the timing cover off to replace the chain, tensioner, chain gears and front oil seals.
The customer came in stating there was an odd noise upon vehicle startup as if the engine was low or out of oil that quickly went away. We pulled the oil pan down to get a better look at the oil pickup tube and the lower part of the timing chain. We were able to physically see extra slack in the chain with the pan off. The pan and pickup tube were cleaned before reassembly to ensure no particles are obstructing the flow of oil.