occasional ticking ? - Hyundai Elantra Forum
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post #1 of 5 (permalink) Old 08-10-2013, 07:19 PM Thread Starter
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occasional ticking ?

I bought a used (ultra clean) 2006 Elantra GT with 82000 km on it. The vehicle runs awesome however AT TIMES there is a ticking sound that comes from under the hood. Cant tell if its exhaust or engine noise... could be EGR valve.. don't know.

1. Does not always happen when cold.
2. sometimes happens when warm.
3. always happens within 10-20 seconds of start up, sometimes starts 5 seconds after start up sometimes 15 seconds after start up but always subsides within 1 minute.

If it was oil or lifter related, you would think that it would start immediately on start up and especially when cold.

If it was bearing related, you would hear it at idle especially when warm after oil had thinned.

any ideas?
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post #2 of 5 (permalink) Old 08-10-2013, 09:22 PM
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Originally Posted by plncrzy View Post
If it was oil or lifter related, you would think that it would start immediately on start up and especially when cold.
Not necessarily.
Parts of the valve train can be "sticky" and intermittently noisy, especially the lifters.

Not sure of the models affected but others have reported that using a non-stock oil filter can contribute to or actually cause some engine ticking noises.
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post #3 of 5 (permalink) Old 08-17-2013, 10:42 AM
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If you can catch the noise happening you can use a automotive stethoscope to narrow down which area the noise is coming from. Could really be a variety of things.
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post #4 of 5 (permalink) Old 09-05-2013, 02:27 PM Thread Starter
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I changed the oil again and used a genuine Hyundai oil filter.. no change. I still get ticking startining within 5-20 seconds after starting and goes away after about a minute but ussually within 30 seconds. BTW, I did add extra detergent in the oil, however this did nothing. The person who owned the vehicle before me changed the oil regularely and vehicle was never driven hard. (oil stays honey brown for all 6000km)

The more I listen, the more convinced I am that the sound is exhaust related.

Last edited by plncrzy; 09-05-2013 at 02:35 PM.
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post #5 of 5 (permalink) Old 09-11-2013, 05:15 PM
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Originally Posted by plncrzy View Post
BTW, I did add extra detergent in the oil, however this did nothing.

The more I listen, the more convinced I am that the sound is exhaust related.
Entirely possible that it is exhaust related.
Noises there do come and go as the temperature changes.

P.S. Putting "extra detergent" in with the oil seldom does any real good and sometimes actually makes matters worse.
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