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judder/misfire 2.0 tdi

corradovr32 Dec 28, 2017

  1. corradovr32

    corradovr32 break,fix,break and repeat

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    greetings
    firstly apologies if this has allready been mentioned or talked about

    recently purchased my a6 2.0 tdi 2008 MY

    have had it fully serviced with all filters and oil.
    the car is still juddering in idle and when the revs are held.
    when driving there is no possible problems (this is my first diesel) and it pulls well i think.
    no smoke,no warning lights and no fault codes shown on vagcom
    mileage just under 100k
    any help will be appreciated
    thanks
     
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  3. audijonny

    audijonny Member

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    Plug in vcds. Or take it to garage for full scan to start with.
     
  4. corradovr32

    corradovr32 break,fix,break and repeat

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    was fully scanned with vcds
    no faults found
    any measuring blocks in vcds to check?
     
  5. owais2k1

    owais2k1 New Member

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    My friend raised the idle revs. Fixed it for my car. 2.0 tdi 2006.

    Sent from my SM-N910F using Tapatalk
     
  6. corradovr32

    corradovr32 break,fix,break and repeat

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    what rpm did he raise the revs to?
     
  7. owais2k1

    owais2k1 New Member

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    Let me check with him. I'll get back to you.

    Sent from my SM-N910F using Tapatalk
     
  8. corradovr32

    corradovr32 break,fix,break and repeat

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    update on my recent works.
    have had the car remapped via rolling road with EGR blank. also have changed the cam position sensor as it was showing a fault.
    the car is still juddering in idle.
    there are no faults on vagcom/vcds.
    have used shell vpower diesel for the last 2000 miles and its had a major service and the problem is still here

    is there anything else i should do or check?
     
  9. owais2k1

    owais2k1 New Member

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    Hi my issue was tandem pump. Leaked oil into fuel. Causing the problem.

    Sent from my SM-N910F using Tapatalk
     

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