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Thread: Loud banging from D2 Td5 in rear when 4wdriving ????

  1. 27th December 2013, 02:05 PM #1
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    SPROVER
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    Loud banging from D2 Td5 in rear when 4wdriving ????

    Today was the first time I took my Disco 4wdriving since I bought it in April. I was at the sundown national park doing some very rocky tracks. Every now and then when the rear of the car would go up and then down a steep part, I would hear a banging noise from the rear left and sometimes the rear right. Just one bang then stopped.

    It was if someone was banging underneath the car. Now my disco is a 99 model with TC and no CDL. I'm not sure if it's just the traction control doing it's thing or something else. I have a 2 inch lift with air bags SLS in the rear. It has never made these noises before so it had me a bit worried. I checked for any lose nuts on the shockers and they were fine.

    Can someone tell me if this is normal or should I be looking elsewhere? It was definitely coming from the rear! I'm off to the springs 4x4 park tomorrow so I hope it's nothing serious :-(
    Any help would be great.
    Thanks
    Chris
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  2. 27th December 2013, 02:23 PM #2
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    simonmelb
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    Are the shocks the right length for the 2" lift?
    Cheers

    Simon
    2003 D2a TD5, ACE, SLS, Vienna Green.
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  3. 27th December 2013, 02:40 PM #3
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    SPROVER
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    Quote Originally Posted by simonmelb View Post
    Are the shocks the right length for the 2" lift?
    They should be. I bought them second hand off a guy who had them on his D2 V8. From memory he got them from suspension stuff. Which was apparently for a 2" lift. So I'm guessing the noise isn't normal? ( regarding the TC)
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  4. 27th December 2013, 05:06 PM #4
    twr7cx
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    Quote Originally Posted by SPROVER View Post
    From memory he got them from suspension stuff. Which was apparently for a 2" lift.
    This is more than enough reason for me to check if they are correct...


    On a different note, I used to have a bang in the back, turned out one of the bolts on the rear trailing arms to the diff were in backward and hitting the watts link brackets!
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  5. 27th December 2013, 08:28 PM #5
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    Quote Originally Posted by twr7cx View Post
    This is more than enough reason for me to check if they are correct...


    On a different note, I used to have a bang in the back, turned out one of the bolts on the rear trailing arms to the diff were in backward and hitting the watts link brackets!
    What would cause the bang noise if the shocks were not the right length? Say if they were to short or not long enough?
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  6. 27th December 2013, 08:57 PM #6
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    mattyg
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    I had a clunk/bang in the back right of my D2 when the rear was articulating. Turned out to be the sway bar link. The rod end rattled when I got under it and gave a nudge.
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  7. 27th December 2013, 09:08 PM #7
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    Will Wallace
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    I have had a couple of different clunks that have shown up off road.

    First one was the watts linkage bushes were shot.

    Second one was the bushes that wrap around the sway bars and connect to the chassis. On a model with ACE.

    Third one (just this week) the link or tie rods that join the sway bats to the axle had gotten old and and the ball joints worn enough to be loose and clunk.

    Regards
    Will.
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  8. 27th December 2013, 09:28 PM #8
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    Quote Originally Posted by mattyg View Post
    I had a clunk/bang in the back right of my D2 when the rear was articulating. Turned out to be the sway bar link. The rod end rattled when I got under it and gave a nudge.
    I was sort of thinking that with mine. The part which connects to the rear sway bar , which is the sway bar link I think looks to be a little worn. Would it be OK to take out 4wdriving tomorrow with that clunk noise still?
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  9. 28th December 2013, 12:12 AM #9
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    I have been doing some heavy towing and 4x4 with the tie rod clunk for 2 weeks.

    Does your car have ACE?

    Will
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  10. 28th December 2013, 02:14 AM #10
    Orch
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    Sounds like mine recently with SLS in raised mode, the standard length shocks were topping out and clunking.

    Watts Linkage bushes would also be my next check. Get someone to jump up and down on one side and stick you head under the back. You'll be able to tell if it's the watts bushes.
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