MITSUBIS3000 GT KNOCKING NOISE COMING FROM THE ENGINE

1999 Mitsubishi 3000GT

Tiny

2CarPros-Archives

November, 10, 2010 AT 10:13 PM

1999 Mitsubishi 3000 GT mileage: 103,200. I hear a knocking noise coming from the engine. I can hear it sometimes at idle but mostly when the engine is revved to 2000 to 3000 RPM. The sound seems to go away if I unplug the spark plug to the number 5 cylinder. Any suggestions on what it could be?

FOUND 1772 RELATED QUESTIONS

1 Answer

Tiny

2CarPros-Archives

November, 10, 2010 AT 10:14 PM

From the tests that you have described, it could indicate a possible broken piston or broken ring, or a failing wrist pin or rod bearing on the number 5 cylinder.

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