+ Reply to Thread
Results 1 to 6 of 6

Thread: Ls1 knock

  1. #1
    Join Date
    Jan 2008
    Posts
    8,031

    Ls1 knock

    where or what do you guys think is wrong with it?
    2002 Maro ls1 130k miles....it smokes a lil and i noticed steamy water bubbling around exhaust ports...
    anyways im pulling motor for a nice upgrade just thought id see what yall thought.


  2. #2
    Join Date
    Mar 2009
    Location
    White Settlement, Texas
    Posts
    660
    Idk what it is but it sounds like a choo choo train lol good luck to you!

  3. #3
    Join Date
    Sep 2011
    Posts
    1,235
    Sounds like a v8 sewing machine!

  4. #4
    Join Date
    Jan 2012
    Location
    DFW, TEXAS
    Posts
    594
    loose rod, spun bearing, check the oil for metal, coolant mixture, or just check if it has oil in it?

  5. #5
    Join Date
    Jun 2004
    Location
    george west texas
    Posts
    3,694
    i had a broke piston shirt once that sounded like that...no not as bad as that...lol
    '13 silverado LT...stock

    '11 lt 4x4 z71..tvs1900

    '01 gmc twins 6.0 jakes 400 ladder bars w/ coilovers tuned by nelson performance

  6. #6
    Join Date
    Apr 2006
    Location
    Bellevue, Nebraska
    Posts
    1,304
    Not sure if I have anything valid to add to this, but the Steamy water you noticed around the exhaust port is what mine was doing when I broke a spring and dropped a valve in #8. I think I posted a vid of it on here back in November. Link to that post is below.
    http://www.ls1truck.com/forums/diagn...running-2.html
    Last edited by AFSP1211; 06-19-2012 at 02:07 PM.

+ Reply to Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts