Car self destruct ..

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Old 12-24-2010, 03:10 PM
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Default Car self destruct ..

PROBLEM SOLVED.. post #33.

Left school today, drove about 3-4 miles, upon entering my neighborhood the car started stuttering and as i come to the stop sign the car doesnt die out or anything, just stutters throughout the rpm range. Any ideas? Got home and popped the hood, sure enough theres a knock coming from what sounds like the pass head, pulled both valve covers.. springs and rockers look great. Thinking detonation, i did get gas at shell (beltway8 and telephone) after dropping a buddy off at hobby airport and being on E i put 12bucks of 93 to get myself back to 59/90 to grab my wallet. Just filled my tank at my normal spot and took a quick 2-3 mile ride and car is still ticking and not running right, seems to be getting worse. Get home ticking sounds like its coming from bottom of car now.. What do you guys think? Lifters? Rod bearing? Thanks Jeremy

Edit:
http://www.youtube.com/watch?v=HB7Sy...er_profilepage

Last edited by kp483; 12-27-2010 at 08:22 PM.
Old 12-24-2010, 03:29 PM
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Sounds like some kind of valvetrain issue to me. Post a video.
Old 12-24-2010, 03:31 PM
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uploading as I type.. Possibly!
Old 12-24-2010, 03:33 PM
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Originally Posted by kp483
Left school today
Who the heck has school on Christmas Eve?
Old 12-24-2010, 03:34 PM
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<--- -__- 8.30-12.30 class
Old 12-24-2010, 03:37 PM
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http://www.youtube.com/watch?v=HB7Sy...er_profilepage
Old 12-24-2010, 03:37 PM
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Originally Posted by kp483
<--- -__- 8.30-12.30 class
Wow... your school sucks (making small chat waiting on video)
Old 12-24-2010, 03:38 PM
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Originally Posted by TechCam97
Wow... your school sucks (making small chat waiting on video)
Can't agree with you more.. haha vid up!
Old 12-24-2010, 03:38 PM
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Wow.... Wrist pin maybe? Sounds like a rock in a coffee can.
Old 12-24-2010, 03:46 PM
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haha best part was it happened under normal driving, in a neiborhood doing about 25-30mph
Old 12-24-2010, 04:10 PM
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Is it throwing any codes?
Old 12-24-2010, 04:14 PM
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Negative, no CEL ..
Old 12-24-2010, 04:47 PM
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If you say the sound is coming from the bottom, then check for exhaust leaks...
Old 12-24-2010, 05:02 PM
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Sounds like an exhaust leak to me more than a knocking noise.
Old 12-24-2010, 05:06 PM
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Originally Posted by RedHotG8
Sounds like an exhaust leak to me more than a knocking noise.
After listening to it for a while I'm starting to think the same thing, but I can't really tell with my crappy speakers.

OP, for reference here is a video of my LS1 with a spun connecting rod bearing;

http://www.youtube.com/watch?v=haPyFvU0r7Y
Old 12-24-2010, 05:12 PM
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Originally Posted by RedHotG8
Sounds like an exhaust leak to me more than a knocking noise.
sounds like a leak to me.... also
Old 12-24-2010, 08:55 PM
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yeah, sounds like an exhaust leak. if thats not the problem check your plugs and accessories. my mom's jeep sounded similar to that a few weeks ago because the bearing in her power steering pump went out, i thought something was seroiusly screwed up just by listening to it.
Old 12-24-2010, 09:12 PM
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yea but it is affecting performance pretty bad... it doesnt die out or anything, but horrible idle and stutters, its real hesistant to rise in rpms, along with the knocking, which seems now to have like a knock on top of another knock
Old 12-24-2010, 09:50 PM
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There is no sucking of air when the revs come down. Longs tubes some times leak from the very last port because of the bolt not being straight in the head. Get a rubber hose and listen around the header near the head you will hear exhaust if its leaking anywhere. To me sounds like a rod....
Old 12-24-2010, 11:20 PM
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Originally Posted by OUTLAWZ RACING
There is no sucking of air when the revs come down. Longs tubes some times leak from the very last port because of the bolt not being straight in the head. Get a rubber hose and listen around the header near the head you will hear exhaust if its leaking anywhere. To me sounds like a rod....
Im with him...It dont sound like a leak to me either. My guess is wrist pin or rod. Good luck bro



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