CAR KNOCKING WHILE DRIVING

  • Tiny
  • Jibs
  • 1997 Mitsubishi Eclipse
  • 4 CYL
  • 2WD
  • automatic

Why does my 1997 eclipse have a knocking sound underneath when moving?
My eclipse accelerates itself when put in neutal, why?

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Sunday, July 17th, 2011 AT 2:58 AM

1 Reply

  • Tiny
  • KHLow2008
  • Expert
  • 41,994 posts

The knocking noise could be anything from bad suspension bushes/links to drivetrain faults and you need to verify the source.

The surging could be due to a faulty IAC or lack of coolant affecting the idling system.

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Sunday, July 17th, 2011 AT 3:49 AM

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