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Thread: TD42 Losing boost pressure

  1. #1
    The master farter
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    TD42 Losing boost pressure

    So I took the Patrol out over the weekend to grab a few things at the shops and also give it a bit of a run. I did notice I can't make no more than 20psi boost pressure when I could easily make 30, and she's blowing more black smoke than usual (so it seems, might just be me on that bit).

    So I've removed all silicone boost hoses cleaned and inspected them and decided I will change them out anyway. Intercooler looks spot on, and all hoses from the manifold to Injector pump and then to the boost controller are good. I will try to get a hold of another boost gauge just incase mine is playing up

    If changing out the hoses doesn't work, and the boost gauge is reading right, what else should I be looking for? .

    Cheers.

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  3. #2
    Patrol God
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    Checked the boost controller ???
    That's what played up on mine last year.

    Sent from my Pixel 3a XL using Tapatalk
    2005 TD42TI

  4. The Following 3 Users Say Thank You to Hodge For This Useful Post:

    GregRT (2nd September 2021), mudski (10th August 2021), Stropp (10th August 2021)

  5. #3
    The master farter
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    Quote Originally Posted by Hodge View Post
    Checked the boost controller ???
    That's what played up on mine last year.

    Sent from my Pixel 3a XL using Tapatalk
    I might remove it and clean it out. Might just be full of oily gunk. Been on there for nearly five years now and never been touched. Cheers.

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    Stropp (10th August 2021), Yeti's Beast (12th August 2021)

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    Quote Originally Posted by Hodge View Post
    Checked the boost controller ???
    That's what played up on mine last year.

    Sent from my Pixel 3a XL using Tapatalk
    My friend is looking to get this TD42 with an intermittent boost pressure issue. We'll just finish installing the brake kit and g2 axle & gear on the Jeep this week before we can check the TD42 boost controller and hoses.

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    The master farter
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    Update.

    My Patrol is just sitting here. Lol.
    Boost controller is fine, so are all the hoses and the IC is fine. Changed out the fuel filter and it didn't help. Theres no gauze screen on the inlet line going into the pump. So its either the motor or injector pump. I assume. In lockdown so no rush.

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    Patrol God nissannewby's Avatar
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    Are you down on power? Suction side of turbo is all good? Air filter not clogged? Snorkel is open and free?

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    SUCH IS LIFE Maxhead's Avatar
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    .anyone say Y62


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  12. #8
    The master farter
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    Quote Originally Posted by nissannewby View Post
    Are you down on power? Suction side of turbo is all good? Air filter not clogged? Snorkel is open and free?
    Yes.... Pretty sure it is, hard to tell. The whistling sounds of the Garret have not changed tone one bit.... Air filter is fresh.... I haven't checked the snorkel. I will look at the entire intake, from snorkel head to turbo intake over the weekend. EGT's are slightly up too.

  13. #9
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    Quote Originally Posted by Maxhead View Post
    .anyone say Y62


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    I'm working on that. Slowly.

  14. #10
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    Been locked down too long. Taking it for a drive and absolutely sink it. She'll boost in no time I reckon. lol
    2005 TD42TI

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