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Thread: 2012 5.3 80mm turbo blue smoke only on acceleration

  1. #1
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    2012 5.3 80mm turbo blue smoke only on acceleration

    Smoking and smoke during acceleration don?t smoke at idle or during start up compression is 185 in all cylinders but is also burning 2 quarts of oil every 500 miles

  2. #2
    Tuning Addict 5FDP's Avatar
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    Are you pressuring the crank case?

    Does the turbo require a oil restrictor so it's not blowing past the seal and eating the engine oil?
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  3. #3
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    Have a .60 restrictor and both valve covers are vented to catch can no oil in them

  4. #4
    Tuning Addict 5FDP's Avatar
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    Does it smoke if you take the charge pipe off the turbo and run it NA?

    If it does then I'd guess at valve seals or piston rings if it's a aluminum engine. I thought the LC9's had that issue.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  5. #5
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    It’s a iron lmg and I just put pistons and rods not even 1000 miles on them and it’s been doing this since day one the turbo is a brand new vs racing billet 87/83 was put on with this motor it’s got me lost on what’s going on I mean it has a small oil leak somewhere if it sits and idles for 20 or 30 mins there will be a drip or two

  6. #6
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    It doesn’t smoke as bad with the charge pipe off

  7. #7
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    What version of valve covers or here is a video excessive oil consumption problem with ls motors.
    https://youtu.be/CePGNsAkcYQ