1999 Mitsubishi 3000 GT knocking noise coming from the engine

Tiny
2CARPROS-ARCHIVES
  • 1999 MITSUBISHI 3000GT
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 103,200 MILES

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?

Do you
have the same problem?
Yes
No
Wednesday, November 10th, 2010 AT 10:13 PM

1 Reply

Tiny
2CARPROS-ARCHIVES
  • MEMBER

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.

Was this
answer
helpful?
Yes
No
Wednesday, November 10th, 2010 AT 10:14 PM

Please login or register to post a reply.

Other Noise Knock Questions