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  1. #1
    jcb
    6th Gear

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    Sep 2005
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    uk
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    4,077

    central locking pump problem

    in my ongoing issues with my car....discovered a new one.
    pump runs for a good 30 seconds on entry

    boot lock doesnt always open on fob and has to be opened manually with key. after I have done that it seems to work fine.

    so...

    1) could a sticky mechanism be stopping the pump from cutting off as it cant open the boot lock.?
    2) how does the pump know to stop pumping?
    3) would a leak in the boot line be able to cause this?

    4) should I torch this fecking thing and take the £5k it is insured for!?!?!?!?

  2. # ADS
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  3. #2
    "Stick a V8 in it!"

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    Jan 2008
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    Glenrothes, Fife, Scotland
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    15,370
    You have a vacuum leak, and if you dont sort it pronto the impeller in the pump will shatter.

    Pump stops pumping once it reaches a desired vacuum pull, or after a timeout if the vacuum pull never happens.

    You'll need to trace round the vac lines and look for a leak. Given the dodgy boot, it might be an idea to start there.

    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
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