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URGENT! Possible Rod Knock. Video INSIDE!

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Old Apr 16, 2011 | 10:57 PM
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Default URGENT! Possible Rod Knock. Video INSIDE!

The car just started making this noise. There is no CEL, or loss of power just this noise. Can someone confirm whether it is the valves or Rod Knock? Ive already replaced the TCT. It starts at About 3k rpm and up. It does not get better or worse.

http://www.youtube.com/watch?v=yjURlr0by5s
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Old Apr 16, 2011 | 11:11 PM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

sounds like a main to me
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Old Apr 17, 2011 | 12:10 AM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

is there oil in the motor?
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Old Apr 17, 2011 | 01:30 AM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

drain the oil and you'll find out. if there's a ton of shavings in there, you have your answer. If there's a rod knock, your oil will have metal shavings in it.
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Old Apr 17, 2011 | 06:04 AM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

Changed the oil and no metal shavings at all. It was black. First oil change after i aquired the car last week.
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Old Apr 17, 2011 | 06:13 AM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

I sure hope it isn't rod knock. It could be chain noise like the tensoner could have taken a dump and the chains slapin around in there.
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Old Apr 17, 2011 | 06:26 AM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

Changed the tensioner.
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Old Apr 17, 2011 | 09:30 AM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

My only thing I can tell you is drop the oil pan and pull the valve cover and have a look around
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Old Apr 17, 2011 | 10:13 AM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

230 compression across the board
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Old Apr 17, 2011 | 10:18 AM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

so did the noise persist after changing tensioner? Was there slack in the chain before?
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Old Apr 17, 2011 | 10:31 AM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

Originally Posted by GoldCoin
Changed the oil and no metal shavings at all. It was black. First oil change after i aquired the car last week.
Did you change the oil before or after the knock developed? If you changed the oil before the knock noise developed, drain it again (dropping the oil pan altogether is advisable). If you just drain it all and it comes back clean, just refill the oil on top (use a clean container and top-off the .1 qt you lost).
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Old Apr 17, 2011 | 10:33 AM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

I changed it after the noise occured. I will add as well that IT ONLY MAKES THIS NOISE UNDER LOAD.

Wouldnt a rod knock be constant through idle or under load?
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Old Apr 17, 2011 | 10:46 AM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

yep rod knock should be all the time
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Old Apr 17, 2011 | 08:12 PM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

I'd drop the pan and take a look at the bottom end- perhaps remove the rod caps and see what it looks like.
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Old Apr 18, 2011 | 05:19 AM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

take a look at ur chain guides too. kinda sounds like its coming from the top. but its hard to tell with just a video
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Old Apr 23, 2011 | 08:24 AM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

Are you sure its not a exaust rattle lol.
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Old Apr 23, 2011 | 07:35 PM
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Default Re: URGENT! Possible Rod Knock. Video INSIDE!

When My Rod started knocking My oil Pressure Dropped. Check dipstick.
Sounds like A Bad rod, Not Spun bearing. You'll Know when it's spun.
My car went from bad rod to Spun bearing and Theres a big difference in sound.

Change oil after a Few hundred miles of driving if its a rod knock Oil should be silverblackish
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