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  1. #1
    Veteran Member Four Rings Rhynolite's Avatar
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    Sep 12 2007
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    Rattling on acceleration from drivetrain

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    01 2.8 SC'd

    On acceleration in 1st, 2nd and 3rd gears, I occasionally get a rattling sound that goes away after about 10 seconds. It almost sounds like something is caught on the shafts, but I checked and nada.

    Reason I think it's from the drivetrain is because I can only hear the rattling when I'm next to curbs/walls on acceleration. Thanks in advance

  2. #2
    Veteran Member Four Rings biketsai's Avatar
    Join Date
    Jun 04 2007
    AZ Member #
    18558
    My Garage
    01' A4 1.8TQM;15' Wrangler
    Location
    Austin/DFW, TX

    Re: Rattling on acceleration from drivetrain

    Exhaust leak!
    BetaAlphaTau Member #12
    01' A4 1.8TQMS 5spd swapped
    GT2871R|CTAPP MAFless|034 EM|Godspeed FMIC|APR 2.5"|EVO MS DV|CM FX400-LWFW
    18" RS4 Reps.|S4 Front/Skirts/Seats/Brakes|RS4 Grill|CF Trim
    Stasis SS|LLTEK Tower|KW F/R Sways|Profec Spec 2
    My 5-Speed Swap DIY
    - B6 USP
    Chris:Mod|PM me with any questions

  3. #3
    Veteran Member Four Rings Rhynolite's Avatar
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    Re: Rattling on acceleration from drivetrain

    Quote Originally Posted by biketsai View Post
    Exhaust leak!
    Just got my mid-muffler taken out, and the guy who was doing it welded up all the leaks that were there. One possibility down!

  4. #4
    Veteran Member Three Rings
    Join Date
    Dec 14 2006
    AZ Member #
    14197
    Location
    Halifax, NS, Canada

    Re: Rattling on acceleration from drivetrain

    inner CV joints
    2001.5 1.8T Manual Quattro Celebration | Startup Racing Vogtland Coilovers | Giac X Chip | SPP A pillar with VDO Gauge | Boxster/A8 Front brakes S4 rears | Neuspeed Catback VMR Testpipe |

    NOW DEAD :(

  5. #5
    Veteran Member Four Rings biketsai's Avatar
    Join Date
    Jun 04 2007
    AZ Member #
    18558
    My Garage
    01' A4 1.8TQM;15' Wrangler
    Location
    Austin/DFW, TX

    Re: Rattling on acceleration from drivetrain

    Check your heatshields. Does this only happen when your car isnt warmed up?
    BetaAlphaTau Member #12
    01' A4 1.8TQMS 5spd swapped
    GT2871R|CTAPP MAFless|034 EM|Godspeed FMIC|APR 2.5"|EVO MS DV|CM FX400-LWFW
    18" RS4 Reps.|S4 Front/Skirts/Seats/Brakes|RS4 Grill|CF Trim
    Stasis SS|LLTEK Tower|KW F/R Sways|Profec Spec 2
    My 5-Speed Swap DIY
    - B6 USP
    Chris:Mod|PM me with any questions

  6. #6
    Veteran Member Four Rings JumboBlack1.8's Avatar
    Join Date
    Sep 16 2006
    AZ Member #
    11514
    My Garage
    '98 528i
    Location
    Boston/West Hartford, CT

    Re: Rattling on acceleration from drivetrain

    Sound clip?
    2000 Audi B5 S6 ** 4.2L 40v S6 6spd - http://www.audizine.com/forum/showth...n-s6-4-2L-swap

  7. #7
    Veteran Member Three Rings
    Join Date
    Oct 27 2006
    AZ Member #
    12913
    My Garage
    Pearl 98.5 Audi A4 1.8T
    Location
    Fargo, ND

    Re: Rattling on acceleration from drivetrain

    CAT?
    1998.5 1.8TQT (SOLD)

    Joined the Dark Side
    2008 Honda Pilot SE

  8. #8
    Veteran Member Four Rings Rhynolite's Avatar
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    Sep 12 2007
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    Re: Rattling on acceleration from drivetrain

    Quote Originally Posted by biketsai View Post
    Check your heatshields. Does this only happen when your car isnt warmed up?
    Nope, happens when the car is warm too.

    Quote Originally Posted by JumboBlack1.8 View Post
    Sound clip?
    I'll go try and get a sound clip today.

    Quote Originally Posted by akielb
    CAT?
    There's two, and why do you think it might be that?

  9. #9
    Veteran Member Four Rings Rhynolite's Avatar
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    Sep 12 2007
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    Re: Rattling on acceleration from drivetrain

    Went out and tried to get it on video, stupid little camera won't pick it up. It sounds like a combination of a rattle and a click when I'm on it.

  10. #10
    Veteran Member Three Rings GarbatyA4's Avatar
    Join Date
    Aug 10 2007
    AZ Member #
    20212
    Location
    Ontario Canada

    Re: Rattling on acceleration from drivetrain

    Quote Originally Posted by Rhynolite View Post
    Went out and tried to get it on video, stupid little camera won't pick it up. It sounds like a combination of a rattle and a click when I'm on it.
    Time for a new first gear buddy... I had this problem before.

    You should beable to find a V6 Tranny no problem.
    2012 Audi Q5 - Daily (slow AF)
    2013 Mini Cooper S - sold
    2005 BMW 325Ci - sold
    2007 BMW 335i - sold
    2004 VW Golf TDI - sold
    2004 Audi S4 V8 Cabriolet - sold
    2003 Audi A4 1.8T - GT2871R - sold
    2000 GMC Sonoma - sold
    1992 Dodge Stealth RT - sold
    1991 Chevrolet Beretta GTZ - sold

  11. #11
    Veteran Member Four Rings JumboBlack1.8's Avatar
    Join Date
    Sep 16 2006
    AZ Member #
    11514
    My Garage
    '98 528i
    Location
    Boston/West Hartford, CT

    Re: Rattling on acceleration from drivetrain

    I found the cause of my rattle.....one of my exhaust clamps broke, so I think I've got a minor leak

    I also notice my transmission makes noise too (i hear it when pulling out of toll booths, etc), but my trans works just fine. I'm running a SB St4, so I always attributed that noise to have a loud clutch
    2000 Audi B5 S6 ** 4.2L 40v S6 6spd - http://www.audizine.com/forum/showth...n-s6-4-2L-swap

  12. #12
    Veteran Member Four Rings Rhynolite's Avatar
    Join Date
    Sep 12 2007
    AZ Member #
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    Location
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    Re: Rattling on acceleration from drivetrain

    Quote Originally Posted by GarbatyA4 View Post
    Time for a new first gear buddy... I had this problem before.

    You should beable to find a V6 Tranny no problem.
    I reeeeally hope this isn't the case..

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