NOISE FROM ENGINE/BAY

  • Tiny
  • Rhino3k
  • 1995 Hyundai Elantra
  • 13,000 miles

Hi

I have a 1995 Hyundai Elantra (J1) and whenever I start the car up, a loud vibrating/rattling noise comes from somewhere in the engine bay. It doesn't sound as if anything is loose though. To narrow it down:

The noise is there only when the car has been standing for a while;
It only makes the noise between (roughly) 1500rpm and 3000rpm;
After the engine warms up, the noise disappears.

Any helpful suggestions/info would be highly appreciated!

Thursday, March 8th, 2012 AT 5:46 PM

5 Answers

  • Tiny
  • rasmataz
  • Member

Could be a valve lifter leakdown problem if its coming from the upper part of the engine

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Thursday, March 8th, 2012 AT 5:54 PM
  • Tiny
  • Rhino3k
  • Member

It sounds as if its coming from where the pulleys are. The noise is now permanent.

Thanks a lot.

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Friday, April 20th, 2012 AT 3:57 PM
  • Tiny
  • rasmataz
  • Member

Sounds like you need to open the front cover and investigate the T/Belt, Tensioner pulley, idler pulley, counter shafts

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Saturday, April 21st, 2012 AT 4:30 AM
  • Tiny
  • Rhino3k
  • Member

I have managed to remove some parts around the noise and discovered that when I push the tensioner pulley down, the loud knocking noise disappears. Could it be that the auto tensioner pin knocking against the tensioner arm is causing this noise? I removed the tensioner pulley and noticed a gap between the auto tensioner pin and tensioner arm.

Please help
attached is an image for convenience

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Tuesday, May 8th, 2012 AT 3:53 AM
  • Tiny
  • rasmataz
  • Member

Replace the auto tensioner and arm

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Tuesday, May 8th, 2012 AT 5:01 AM

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