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Old 04-07-2013, 08:41 AM   #1
danilobandeira
 
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Trouble Noise Engine/cylinder Camaro SS v8

Anybody knows what is this noise?

it comes from inside the engine... looks like ONE cylinder (left side)


noise in youtube:
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Old 04-07-2013, 08:46 AM   #2
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does it stop after a while
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Old 04-07-2013, 09:01 AM   #3
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No!!!
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Old 04-07-2013, 09:06 AM   #4
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Does the car have headers? Exhaust leak maybe? It's hard to hear through computer speakers but that definitely doesn't sound right.
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Old 04-07-2013, 09:07 AM   #5
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Sounds like valve train noise i.e. lifters, rocker arm
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Old 04-07-2013, 09:17 AM   #6
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the car has nothing (leak/headers), appeared after I gave an accelerated 0-80mph yesterday. I put gasoline additive because I thought it might be some dirt in the engine but nothing happens.
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Old 04-07-2013, 10:03 AM   #7
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sounds like a thrown rod.
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Old 04-07-2013, 10:06 AM   #8
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i'm going leave the car at GM dealer... when they diagnose the problem, i post here.
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Old 04-07-2013, 12:32 PM   #9
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Ouch. Sounds bad. Agree with taking it in.
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Old 04-07-2013, 12:41 PM   #10
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Quote:
Originally Posted by danilobandeira View Post
i'm going leave the car at GM dealer... when they diagnose the problem, i post here.
I'm really sorry for engine/cylinder noises you're hearing danilo, but I applaud you for getting the car to a GM dealership. I'm sure the forum members definitely appreciate you providing updates on the service and we do too. Actually, I'd like to document this case in our system if you don't mind. Could you private message me your full name, phone, VIN number, and vehicle mileage?

William R.
Chevrolet Customer Care
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Old 04-07-2013, 12:46 PM   #11
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Say thank you 5 year/100,000 powertrain!
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Old 04-07-2013, 02:30 PM   #12
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here in brazil, we have 2 years of warranty only... and i paid 113k for the camaro ss v8 2011 when i bought. the car is at the dealer, tomorrow i should have some answer.
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Old 04-07-2013, 02:56 PM   #13
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Check oil level maybe low on oil.
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Old 04-07-2013, 03:00 PM   #14
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oil level was the first thing that i did... that was nice!
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Old 04-08-2013, 12:48 AM   #15
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Don't sound like a rod, It would be more of a solid sound, Sounds like a lifter or bent push rod or valve.
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Old 04-08-2013, 12:29 PM   #16
f5journal
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Sorry, but sounds more like a rod to me than valve train. Sounds like a rod hitting the windage tray (presuming there is one)
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Old 04-08-2013, 02:15 PM   #17
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Old 04-08-2013, 04:37 PM   #18
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engine open today, tomorrow i'll have the issues and post here... but they already said that the warranty will cover. =)
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Old 04-09-2013, 11:21 AM   #19
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Rod!
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Old 04-09-2013, 11:57 AM   #20
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Quote:
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Rod!
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Old 04-09-2013, 02:58 PM   #21
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My guess would be a rod knock also. A fast knock like that at idle is most often in the lower end. The cam spins at 1/2 speed so lifter knocks usually sound slower than that at idle.
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Old 04-09-2013, 06:05 PM   #22
danilobandeira
 
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Hi guys, i'll try to explain here ( i don't know all the english terms/words )...
Problem: broken tappet at the six cylinder

images:
http://imageshack.us/photo/my-images/22/foto0119zr.jpg/

http://imageshack.us/photo/my-images/841/foto0117f.jpg/

http://imageshack.us/photo/my-images...oto0116zn.jpg/

http://imageshack.us/photo/my-images/820/foto0115g.jpg/
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Old 04-09-2013, 10:14 PM   #23
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Like I said.. There will be no doubt in your mind when a rod knocks, Only Rod knock you will hear on a motor that still runs is the wrist pin or the mains, It's not going to hit a windage tray unless it's broke or really bent..
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Old 04-10-2013, 03:28 AM   #24
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That's one of those dirty DOD lifters on L99, got rid of mine with LS3 conversion.
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