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Thread: Whiney TD5 on boost? Turbo already replaced

  1. 1st May 2010, 01:12 PM #1
    DiscoNZ
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    Whiney TD5 on boost? Turbo already replaced

    Hi,
    Am after a bit of help with a whine in my Discovery.

    Its a 01 TD5 Auto, 108,000ks. Issue is that at 2500revs it begins to have a whine/whistle which seems to come from the passengers side. I had the mechanic have a look when I took it for a warrant last month. He diagnosed a stuffed turbo and wanted 4.5k NZD for a brand new replacement. I got one in from the UK myself for a bit over a grand and have bolted it on myself today.

    Took it for a spin and while it goes much better still have the same whining issue. Needless to say not going back to the mechanic and not happy with them but I still need a diagnosis.

    Any ideas?
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  2. 1st May 2010, 02:17 PM #2
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    TimNZ
    TimNZ is offline Wizard
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    Sounds like you have a leak somewhere on the pressure side of the turbo.

    Cheers,
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  3. 1st May 2010, 02:20 PM #3
    gatesy
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    I am not that mechanical minded but can a leaky intercooler hose cause this?? I have heard that when the intercooler pipe leaks, it whistles and you lose power and fuel econ. As I said though I not good with the mechanical stuff, it just what I been told in the past. Hope I am on the mark!
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  4. 1st May 2010, 02:21 PM #4
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    scarry
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    Leaking exhaust manifold gasket....
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  5. 1st May 2010, 02:48 PM #5
    DiscoNZ
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    Quote Originally Posted by scarry View Post
    Leaking exhaust manifold gasket....
    This seems like the winner, went and had a look back in the garage. Cylinder No 5 has carbon built up round the manifold, started the motor and could feel air escaping from there at idle. Nothing from the rest of the cylinders. Will see how it goes replacing this.
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  6. 1st May 2010, 02:58 PM #6
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    scarry
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    Quote Originally Posted by DiscoNZ View Post
    This seems like the winner, went and had a look back in the garage. Cylinder No 5 has carbon built up round the manifold, started the motor and could feel air escaping from there at idle. Nothing from the rest of the cylinders. Will see how it goes replacing this.
    Have a good look on this site.I have ,so far,never had this problem,but many have.
    There is a lot of info on here on the best way to fix it.

    Good luck
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  7. 1st May 2010, 03:13 PM #7
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    discowhite
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    Quote Originally Posted by DiscoNZ View Post
    This seems like the winner, went and had a look back in the garage. Cylinder No 5 has carbon built up round the manifold, started the motor and could feel air escaping from there at idle. Nothing from the rest of the cylinders. Will see how it goes replacing this.
    so... is your ''mechanic'' going to refund you the $$$$ you wasted on a new turbo???
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  8. 1st May 2010, 03:53 PM #8
    Tombie Guest
    Quote Originally Posted by discowhite View Post
    so... is your ''mechanic'' going to refund you the $$$$ you wasted on a new turbo???
    Even worse, for a few more $$$ he could have got a better turbo Remapped it and had a beast of a vehicle...
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  9. 1st May 2010, 04:35 PM #9
    PAT303
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    Don't feel like your the only one ripped off,if I had a dollar for every time an ''expert'' gave a $$$$ repair quote for a simple or not needed repair.I'll give you a free tip,don't ever get a ''14 point safety check for $40 or a fixed price $120 service'',trust me they are aren't cheap for nothing. Pat
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  10. 2nd May 2010, 11:43 AM #10
    DiscoNZ
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    Had a look through some threads on the exhaust mannifold... There are no broken studs on mine. It seems the course of action is to pull the mannifold, check it for warping, possibly cut out the 'webbing' and back on with a new gasket.
    Re the turbo, I guess at least I didn't spend $4.5 k on one.
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