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Thread: I don't think it's an exhaust leak.

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  1. #1
    Join Date
    Aug 2007
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    That makes sense but the leak is on bank 2. I swapped o2's from bank 1 to bank 2 hoping the code would follow the sensor. But no codes yet so I wonder if the sensor is just bad. An exhaust leak doesn't cause this many problems.

  2. #2
    Join Date
    May 2008
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    Quote Originally Posted by emmerich5.3 View Post
    That makes sense but the leak is on bank 2. I swapped o2's from bank 1 to bank 2 hoping the code would follow the sensor. But no codes yet so I wonder if the sensor is just bad. An exhaust leak doesn't cause this many problems.

    Those plugs look ugly. They should look a little more like this...


    1969 Chevy RCLB C10 350/TH400 SOLD
    2007 Chevy RCSB 4.8 4x4 LS SOLD
    2008 Chevy RCSB 5.3 4x4 LT SOLD
    2010 Chevy CCSB 6.2 4x4 LT SOLD
    2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
    2013 FORD CCSB F350 6.7 Powerstroke 4x4


  3. #3
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    That's what bank 2 looks like. I think this goes farther than exhaust leaks. The last thing i did was re-seal the hot side and swap o2's from bank 1 to bank 2 so I could rule out p0151. I pit it back together and this happened.

  4. #4
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    Aug 2007
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    After letting it warm up it shuts off cylinder 2 and the leak goes away. Weird.

  5. #5
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    The leak sound I should say.

  6. #6
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    What do you mean by it shuts off cylinder 2?

  7. #7
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    Aug 2007
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    754
    Bank 1 o2 was bad and the log is cracked.
    Last edited by EmmerichLSx; 10-17-2010 at 06:34 PM.

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