Chris NottJMB Retrofits
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  1. #1
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    a4 wierd catching noise when lifting off loud pedal

    hi peeps newbie here
    #as title says iv got a a4 1.8t on a r plate and when i lift off the loud pedal it sounds like something is catching (turbo) not sure if it is tho. Iv been under the car and tryed to hole all the heat shield to see if it was that but the noise is still there.

    any ideas???

    cheers carlos

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  3. #2
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

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    camshaft tensioner noise ???
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  4. #3
    "Stick a V8 in it!"

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    Our old car had a rapid metallic rattle on overrun, which was caused by the penny valve on the turbo.

    Eventually the penny valve fell off, and the car lost all boost.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


  5. #4
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    Quote Originally Posted by aragorn View Post
    Our old car had a rapid metallic rattle on overrun, which was caused by the penny valve on the turbo.

    Eventually the penny valve fell off, and the car lost all boost.
    it reminds me of when i was a kid and i used to put a card inbetween me spokes on me bmx. it makes that kinda noise. defo sounds as if its coming from or around the turbo area.

    how hard is it to fix "the penny valve" or is it a specialist job?

  6. #5
    "Stick a V8 in it!"

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    Basically it needs a new turbo, or at least a recon by someone who can fix it. Which is why i ignored it until it actually broke.

    And ye, card between bike spokes is a reasonable description of the noise, and it only ever occurred on overrun, until one day it didnt any more, and all the power went away.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


  7. #6
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    Quote Originally Posted by aragorn View Post
    Basically it needs a new turbo, or at least a recon by someone who can fix it. Which is why i ignored it until it actually broke.

    And ye, card between bike spokes is a reasonable description of the noise, and it only ever occurred on overrun, until one day it didnt any more, and all the power went away.

    Well thats not what i wanted to hear lol. And glad ya understood what i ment lol.

    Had the whole front end off it yesterday to clean the oil strainer and sump took 15 Hours was not a happy man like. well cheers for the bad news lol

 

 

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