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350 vortec ticking noise

Discussion in 'Gasoline Engines' started by Waystro, May 17, 2019.

  1. Waystro

    Waystro No Class

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    so new truck 350 vortec on cold starts there is a ticking noise that goes away once warm any thoughts ?
     
  2. Oledirtypearl86

    Oledirtypearl86 Full Access Member

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    Sounds like a lifter? got a bunch of 6.0 vortechs at work that do the same thing when they get close to a service
     
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  3. 79jasper

    79jasper Chickenhawk

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    What year?
    They all have a tick.

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  4. Waystro

    Waystro No Class

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    It’s a 98 and it’s been 3500 miles since last oil change
     
  5. Oledirtypearl86

    Oledirtypearl86 Full Access Member

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    Not all of them do but probably 80 percent of them do an they are all like 2013 to 15
     
  6. 79jasper

    79jasper Chickenhawk

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    Way before 13. Lol it got worse when the variable displacement came out.
    Regardless, I would try some hot shots secret stiction eliminator. Personally I would change the oil, and put in the one quart bottle with the oil change.

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  7. Oledirtypearl86

    Oledirtypearl86 Full Access Member

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    Lol If they were my responsibility I would they are the mine trucks so they idle 12 hr a day and are never serviced we had one it went 53k before it's first service
     
  8. 79jasper

    79jasper Chickenhawk

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    I meant for waystro to run the hss. Lol
    That's crazy. What's more crazy is trucks/equipment lasting with the lack of maintenance, especially when you have cream puffs that have had regular maintenance that blow up shortly. Lol

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  9. Oledirtypearl86

    Oledirtypearl86 Full Access Member

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    Yeah kinda testament to the gm 6.0 gutless but a loyal and good motor
     
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  10. Waystro

    Waystro No Class

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    So new issue 4x4 is not working it’s push button 4x4 lights blink shifting to 4 lol i here a clunk but front does not spin any thoughts?
     
  11. 79jasper

    79jasper Chickenhawk

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    Yes, the retarded thermal actuator on the front diff.
    There is a manual conversion.
    Last time I bought a stock one (probably 15 years ago) it was like $75 at azone.

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  12. Wide Open

    Wide Open Registered User

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    Two other common causes of the ticking on the Vortec engines that goes away once warmed up - piston slap and small exhaust leaks at the head. They used fairly small bolts to attach the manifolds and they often break in the head.
     
  13. Wide Open

    Wide Open Registered User

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    Yeah like Jasper said it aounds like the transfer case is shifting as directed but the front axle isn’t getting the message.

    If the switch blinks for a few seconds and then shows 2wd again instead of 4Lo then it’s likely the switch. I’ve had a few of those go bad too.
     

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