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Thread: D2 Auto rattle

  1. #1
    Weekender Guest

    D2 Auto rattle

    I noticed a metallic rattle - I was thinking it was like a loose metal guard on the exhaust or a baffle in the muffler - but it seems to be coming from the transfer case, but its there even when the auto is in park. Have just on 200K and no known work on the transmission. Drives fine.

    Cannot hear it driving, but it is a TD5....

    any ideas? Thanks

  2. #2
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    The bolts that hold the vibration damper onto the rear of the transfer case (near the hand-brake drum) could be loose.

  3. #3
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    Could possibly be the handbrake shoe retaining springs getting weaker and allowing a bit of buzz in there.

  4. #4
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    If it has a bellows style of flexible section in the exhaust pipe just below the turbo then the flexible section may have stretched which causes a rattle from its internal limit stop. Lifting the exhaust from below the joint whilst idling will silence the rattle if this is the cause, for which the permanent fix is to have a wire style section fitted which will also improve exhaust flow considerably as the flexible section has almost a 50% restriction.
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  5. #5
    Weekender Guest
    Ok - thanks for those suggestions - I will have another look later today - when I won't wake the neighbours!

  6. #6
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    alien is offline A Keeper of the TGO Silver Subscriber
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    As said check the exhaust flex joint, some have had rattles from them.
    Also check the heat shield over the centre muffler hasn't come loose, my RRC classic rattles from here.
    Also look at the turbo heat shield, the rear mount is a known rattler too.
    Good luck.
    Cheers, Kyle



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  7. #7
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    And the heat shield from the LH transfer case rubber mounting can be very noisy too if it is broken and vibrating or even touching the exhaust pipe as I have seen them drop down when cracked.

    JC
    The Isuzu 110. Solid and as dependable as a rock, coming soon with auto box😊
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  8. #8
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    Centre muffler heat shield will make a racket if that is loose. The clips work loose. If you have a look on the RAVE cd there is a bulletin which recommends replacing the clips with a flanged nut. It's m6 or m8 - I just used flat washers and nuts and put thread locker on the nuts.

  9. #9
    Weekender Guest

    Smile

    Quote Originally Posted by gazk View Post
    The bolts that hold the vibration damper onto the rear of the transfer case (near the hand-brake drum) could be loose.
    Thanks Gary - you win! It was the best 10 seconds I've spent with a 15mm ring spanner. Both 15mm bolts were loose, nipped them both up and it certainly smoothed things up.

    Leo

  10. #10
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    The flex plate when cracked will also make a metallic rattle, mainly at idle. You won't hear it at revs or the frequency increases to above audible. I had it at idle and chased it but fortunately the auto failed first.

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