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Thread: I think I may have very early stages of DMF failure

  1. #1
    Ex-Staff Full Member John LE's Avatar
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    Vehicle : Facelift Insignia/Corsa D

    Trim : LE/VXR

    Engine : 2.0 cdti/1.6 Turbo

    Year : 13/07

    Question I think I may have very early stages of DMF failure

    I can here a slight metallic rattle when revved with the clutch down......sound like the DMF?

    Not particularly worried about it at the moment but just want to know

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    Regular Member Signum-Steve's Avatar
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    Have you checked out your heat shield John?
    Just a thought.

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    Regular Member neill's Avatar
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    my dmf has been rattling for months but i dont get it when the clutch is pressed down

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    Regular Member lofty's Avatar
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    Sounds like it to me. This was my very first symptom, sounds like it's coming from the passenger footwell and more so when you release the accelerator pedal?

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    Ex-Staff Full Member John LE's Avatar
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    Quote Originally Posted by DTI-Steve View Post
    Have you checked out your heat shield John?
    Just a thought.
    Well that was my first thought bud but the rattle is only there with the clutch pedal pressed down. If I rev it with the pedal up there is no rattle.

    That's why I think it may be the outer plate of the dmf rattling when there is no load on it

    Quote Originally Posted by neill View Post
    my dmf has been rattling for months but i dont get it when the clutch is pressed down
    Even when you give the engine a rev?

  6. #6
    Ex-Staff Full Member John LE's Avatar
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    Quote Originally Posted by lofty View Post
    Sounds like it to me. This was my very first symptom, sounds like it's coming from the passenger footwell and more so when you release the accelerator pedal?
    Bingo, that's exactly what I get.....how long before it gets really bad?

  7. #7
    Regular Member lofty's Avatar
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    Quote Originally Posted by John IS3 View Post
    Bingo, that's exactly what I get.....how long before it gets really bad?
    My hatch was doing this but I didn't know it was the dmf at that point and it lasted like that for over 6 months without getting worse (in fact it was no different when I sold it and I only realised it may have been on its way since getting the estate).

    My new estate had the same symptoms and took a few months before the engine started to sound rough. I wouldn't worry about the slight rattle until the engine starts to sound rough and you can feel the change when you press the clutch down.

    Edit: Another point on my hatch: Although I had the rattle the car drove great. My estate sounded like a bag of spanners until I got the DMF replaced and now it drives soooo smooth and the fuel economy has gone up slightly.
    Last edited by lofty; 23rd April 2012 at 19:57.

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    Regular Member smartalec0310's Avatar
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    mines on the way out and think im gonna be getting a solid flywheel conversion no moving parts so should be better

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    keep your foot on the clutch when starting engine i read somewhere it will last longer

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