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Thread: mk3 8v problems

  1. AWDTurboMK2
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    mk3 8v problems

    07-29-2012 04:08 PM #1
    When running and ac and everythings on and its real hot out side.At a stop light the car will die but start right back up.I think its some sort of vacuum problem did tune up vacuum lines,water pump,fuel filter.Trying to help a friend out in North Carolina fix his car don't know much about 8v mk3 any help will do thanks.
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  3. jiffyjetta
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    07-29-2012 04:22 PM #2
    Scan it for codes and post your results.
    It is nearly impossible to diagnose a vehicle without seeing it or without codes.
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    Quote Originally Posted by brobs is back View Post
    I'm going to hook up the cables for my vr shifterbox to each of my nuts. Then I'll just cough to shift
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  4. AWDTurboMK2
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    07-29-2012 05:41 PM #3
    yeah thats what i told my friend i thought night be some vacuum lines some where,but he says just shuts off.He's to far away to go there so will try and help him.Anymore thoughts on the subject please let me know.
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  5. Thecleaner
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    07-30-2012 01:00 AM #4
    Transfer pump.....
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  6. Sticky Tape
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    07-30-2012 02:07 AM #5
    Quote Originally Posted by Thecleaner View Post
    Transfer pump.....
    Not on a MKIII.
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  7. cabriosnap
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    08-04-2012 12:11 PM #6
    do you have any battery/alternator issues or charging issues of any kind? sounds like the extra drag caused from your a/c compressor kicking on may be putting strain on yourt alternator....just a theory
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  8. Keltz
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    08-04-2012 03:01 PM #7
    Check your IAC valve. That was the issue was for mine
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  9. jiffyjetta
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    08-05-2012 10:12 AM #8
    I think you should aimlessly throw parts at it.
    Then when it is not fixed, scan it for codes.
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    Quote Originally Posted by brobs is back View Post
    I'm going to hook up the cables for my vr shifterbox to each of my nuts. Then I'll just cough to shift
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  10. 83mk2scirocco
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    08-06-2012 05:45 AM #9
    Quote Originally Posted by jiffyjetta View Post
    i think you should aimlessly throw parts at it.
    Then when it is not fixed, scan it for codes.
    jack ass.
    http://website.lineone.net/~dr.dub/
    http://www.cybertects.co.uk/scirocco...odes/index.php
    http://www.a2resource.com/
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  11. jiffyjetta
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    08-06-2012 01:51 PM #10
    Quote Originally Posted by 83mk2scirocco View Post
    jack ass.
    He needs to scan the vehicle for codes OR have someone diagnose it in person.
    It is just a big guessing game right now, at least 3 different suggestions.
    Last edited by jiffyjetta; 08-06-2012 at 07:01 PM.
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    Quote Originally Posted by brobs is back View Post
    I'm going to hook up the cables for my vr shifterbox to each of my nuts. Then I'll just cough to shift
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  12. WeenerBoy
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    08-06-2012 01:56 PM #11
    Quote Originally Posted by 83mk2scirocco View Post
    jack ass.
    really?
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  13. bluidgti
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    08-07-2012 12:10 AM #12
    if its obd2 then there is a signal wire that tells the ECU that the A/C is on so it can bump open the throttle a bit. if its obd1 then there is an IAC valve that does the same thing as the throttle. Id get my bentley out and tell you exactly what wire it is but its not handy. Does your AC work when your car is off idle? like higher than 1000 rpm? also post what year your car is.
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  14. bluidgti
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    08-07-2012 12:14 AM #13
    Quote Originally Posted by jiffyjetta View Post
    Scan it for codes and post your results.
    It is nearly impossible to diagnose a vehicle without seeing it or without codes.
    I disagree completely. Mk3s are NOT so sophisticated that you cant fix them without a code reader. If the CEL is on then yeah, obviously find out why. This issue has a high probability of not causing a CEL though.
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  15. ValveCoverGasket
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    08-07-2012 11:36 AM #14
    i think the problem is the lack of a turbo, and its missing 8 valves.

    might try that?
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  16. 75rusty
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    08-08-2012 02:07 PM #15
    Quote Originally Posted by ValveCoverGasket View Post
    i think the problem is the lack of a turbo, and its missing 8 valves.

    might try that?
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