Engine knock?? - Hyundai Aftermarket

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Engine knock??

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Old 11-27-2017, 10:35 PM
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Default Engine knock??

I have a 2001 Hyundai Tiburon and it has started making a knocking noise while accelerating. It's not like it stays constant. It seems to have more to do with engine load than rpm. So I can be at 3k and get some noise then it stops...push the pedal down a little more and it comes back. The best way to try and hear it is to rev up and down while accelerating. I took 1 quart of oil out tonight and replaced it with lucas engine treatment and a little seafoam. I notice the oil was kinda metallic...that sounds like a bad thing! Could it be a rod bearing? If so, couldn't I just change it through the bottom of the engine?



Videos showing the symptoms:



Oil glitter (big "particles" are air bubbles. Actual metal was so fine my paint strainger wouldn't filter it out!):

https://photos.app.goo.gl/XVft2PIoCL5yGAYJ2



Parked with hood open (obvious!!):

https://photos.app.goo.gl/GsKOxv4YoUhs1K8k1



Driving (not as noticable):

https://photos.app.goo.gl/e6BV2FJrafo5qvWk2
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Old 11-28-2017, 12:05 PM
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I have really bad speakers here at work, but sounds a bit like a stretched cam chain?
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Old 11-28-2017, 12:25 PM
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Do you have a CEL?



Have you ever replace the Knock Sensor?
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Old 11-29-2017, 01:42 AM
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Originally Posted by Juanra View Post
Do you have a CEL?



Have you ever replace the Knock Sensor?




No CEL. Have never changed the knock sensor.
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Old 11-29-2017, 10:50 AM
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sounds like big end (rod bearings as you call them) to me, might have damaged the crank aswell. You won't really know until you drop them off and have a look for other damage
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Old 11-29-2017, 11:54 AM
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buy a motor from the junkyard. they are cheap enough.



dont waste your time rebuilding this one.
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Old 12-14-2017, 07:19 AM
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You may be able to get by with just replacing the rod and crank bearings with the engine in the car provided the crank isn't damaged.
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