Troubleshooter

Engine knocking

Does the noise change with engine speed?

Answer this first

Choose an answer above to see the checks for that path.

Next steps

• Look up any part named above to see where it is and how it is tested.
• Record what you find on your own inspection so you can track it.
• Check grounds before condemning any electrical component.

This pathway narrows possibilities using general mechanical reasoning. It is not a verified factory diagnostic procedure and it never confirms a fault — always test before replacing a part.