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Thread: the turbo 5.3 died

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  1. #1
    Join Date
    Sep 2010
    Location
    North East Ohio
    Posts
    278
    Start pulling plugs see if you have oil on a particular cylinder causing a miss and maybe help locate the smoking from yesterday
    2010 Silverado 4.8 Ext Cab 4x4
    Cam, Stall, 4.88's

  2. #2
    Join Date
    Sep 2008
    Location
    Arizona/Utah
    Posts
    3,939
    Quote Originally Posted by Gus View Post
    Start pulling plugs see if you have oil on a particular cylinder causing a miss and maybe help locate the smoking from yesterday
    +1 First thing you should do is pull the spark plugs and check them all. Also check all the wires. Check all the easy simple stuff first. Any codes?
    ECSB 2kSierra 2wd 4.8L-K&N-HPtuners-Calspeed LT's-Magnaflow-Tahoe20's-HankookRH06

    waiting to go in... 3.90s, 214/220cam

  3. #3
    Join Date
    Sep 2011
    Posts
    1,235
    Ses light is flashing, didn't get much done before the rain moved in. Got a pro charged vett I've got to finish working on before I can work on my truck anymore.

  4. #4
    Join Date
    Sep 2011
    Posts
    1,235
    Ran a compression check and I've got 140 on 7 holes and 128 on 1 hole. Plugs look a lil black.




    Mosquitoes were tearing me apart so I had to go in, gonna dig deeper tomorrow.

  5. #5
    Join Date
    Jan 2008
    Posts
    1,550
    Yea they're really black. How rich is it at idle? Did you check the turbo to see if it was burning oil?

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  6. #6
    Join Date
    Sep 2011
    Posts
    1,235
    Turbo looks good. Gonna hook up the HPtuners tomorrow, put new plugs in and see what codes it throws.

  7. #7
    Join Date
    Jan 2008
    Posts
    1,550
    Good idea. I think you should be running br7ef's

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  8. #8
    Join Date
    Sep 2011
    Posts
    1,235
    Running tr6 right now, what's the difference?

  9. #9
    Join Date
    Jan 2008
    Posts
    1,550
    Just a step colder and non-projected. But slap some plugs in and scan that thing. I don't see how you could've hurt it on 10psi unless your tune was off

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  10. #10
    Join Date
    Sep 2011
    Posts
    1,235
    Update , on every start up the truck struggles to idle and blows blueish black smoke everywhere . You can rev it up and it will quit smoking and clear up. But as soon as you kill it and start it back up it does the same thing.

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