Generation III Internal Engine 1997-2006 LS1 | LS6
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knock issue

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Old Jan 6, 2011 | 12:05 PM
  #21  
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From: Austin,TX
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Originally Posted by westtexasbuff
May have been a vacuum leak, or exhaust leak. Flashing SES means there's a misfire, is it still flashing? If it was me, I wouldn't run it anymore till it's tuned.
no this was a hard core knock and yea im not going to i just wanted to figure out if the knock was serious or not or where it was coming from and get it solved before im 7 grande on a dyno and boom but i think its fixed now so ill be heading to blacker soon
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Old Jan 6, 2011 | 03:29 PM
  #22  
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From: phx the cactus patch
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If the computer leaned the fuel trim out enough , the engine would seize . The ign timing being too far advanced can and will cause a rod knock because the spark plugs will fire before the piston reaches tdc . it's possible thats what it was . But there are quite a few possibilities so without doing some investigative diagnostics it would be hard to speculate correctly . Good luck and like the others said , don't drive it until it has been to someone to tune and .....
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Old Jan 6, 2011 | 06:58 PM
  #23  
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well i took it to the tuner today and him and couple other guys after listening to it r betting i collapsed a lifter with my car having 108 thousand on stock lifters and putting new and tougher springs in one of the lifters said later lol so im thrilled
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