Symptoms of a Bad or Failing Timing Belt Common signs include a ticking noise coming from the engine, an engine that won't turn over, engine misfires, and oil leaking in front of the motor. by Timothy Charlet on January 12, 2016 1.

What happens when your timing belt goes out?

What happens if the timing belt breaks? If a timing belt breaks, the engine will no longer work. This may result in a heavy damage to the engine with broken or bent valves, damaged pistons and, possibly, destroyed cylinder head and block.

How do I know if my timing tensioner is bad?

A bad tensioner will usually be accompanied by noise. This noise could be some type of squealing or rattling coming from the timing cover area. Also, when your timing belt is loose, it will cause some drivability issues usually under high load or high rpm.

What happens when a timing belt tensioner fails?

When the tensioner or tensioner pulley fails, the loss of tension can cause the belt and pulleys to make high-pitched rattling or chirping noises. If the pulley bearing completely fails, it can also cause a squealing or even a grinding noise. Symptom 2: Knocking or slapping. This can cause a slapping or knocking noise.

Related Question What are the signs of a bad timing belt?

What Makes Diesel Trucks Whistle?
Can You Sand Down Foam?