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Thread: Ticking from driveline when off throttle?

  1. 2nd November 2022, 04:03 PM #1
    shayne86 Guest

    Ticking from driveline when off throttle?

    So the ol' d2a auto seems to have a new ticking sound when you are OFF the throttle and coasting. Happens at almost any speed as far as i can tell. As soon as input goes into the throttle it goes away and the ticking stops. Lift off the throttle, ticking comes back.

    Can't actuality hear or feel it in the cab with windows up but becomes incredibly apparent when your driving next to armco railing or anything that will bounce the sound back at you.

    Its definately driveline related as tempo changes with car speed and not engine rpm.

    Ive seen a lot of forum posts for the opposite of this (ticking under load) but haven't been able to find anything quite like this?

    Can anyone on here shed some light on this?

    Thanks all
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  2. 2nd November 2022, 04:38 PM #2
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    RobMichelle
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    Wonder if front uni is on way out
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  3. 2nd November 2022, 07:44 PM #3
    PhilipA
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    Do you have lengthened aircon drains to avoid water on the front UJ of the Cardan joint?
    If not it's probably that .
    Regards PhilipA
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  4. 2nd November 2022, 08:27 PM #4
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    scarry
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    Quote Originally Posted by RobMichelle View Post
    Wonder if front uni is on way out
    If it is,get onto it ASAP,as they often cause a heap of damage when they let go.
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  5. 2nd November 2022, 08:42 PM #5
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    Slunnie
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    Quote Originally Posted by scarry View Post
    If it is,get onto it ASAP,as they often cause a heap of damage when they let go.
    Are you suggesting the ticking is a timebomb?
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~
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  6. 3rd November 2022, 12:35 AM #6
    shayne86 Guest
    Quote Originally Posted by PhilipA View Post
    Do you have lengthened aircon drains to avoid water on the front UJ of the Cardan joint?
    If not it's probably that .
    Regards PhilipA
    No. Ill have a look but ive been greasing the uni's front and rear regularly since I've owned it. Havent noticed anything out of the norm.

    If it was the uni, would it not be a constant noise? Why would it stop with the bare minimum of throttle input though?
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  7. 3rd November 2022, 05:50 AM #7
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    RobMichelle
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    Load on the driveline is why it will stop.
    Keeps the pressure on the slop then release acceleration slop is allowed to happen.
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  8. 3rd November 2022, 07:24 AM #8
    PhilipA
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    Ha! once the damage is done it will eventually fail.
    I extended my drains 8 years ago and grease regularly.
    About 1 year ago, I was doing a Uturn and heard a slight noise and sure enough it was the UJ.
    Regards PhilipA
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  9. 3rd November 2022, 12:45 PM #9
    shayne86 Guest
    Cheers guys! How good is this forum ay!? Ticking from driveline when off throttle?

    I'm back to work tomorrow for a bit so I'll dig into it deeper next time I'm home and see what i find
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  10. 3rd November 2022, 12:53 PM #10
    shayne86 Guest
    What's everyone's opinions on pricing for a new propshaft? I've seen fronts going for $400 and upto $800+

    Or have any of you gents gone down the rebuild path? Ide been keen to hear some feedback from someone that's gone down that route.

    Cheers guys Ticking from driveline when off throttle?
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