Noise from engine/bay

RHINO3K

MEMBER
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!

5 Replies

RASMATAZ

MECHANIC
75,992 POSTS

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

RHINO3K

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12 POSTS

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

RASMATAZ

MECHANIC
75,992 POSTS

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

RHINO3K

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12 POSTS

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
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