Starter motor problem

Discussion in 'Mk4' started by Adam peachey, May 5, 2020.

  1. Adam peachey Forum Member

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    Can anyone advise, my old starter motor used to start but made that noise after starting replaced with a new recon &I can hear it wirring sometimes &when I turn it off, the whirring nose slows untill it stops,is it a faulty starter??or is it a relay.?any help please, ta Adam
     
  2. rubjonny

    rubjonny Administrator Staff Member Admin

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    unplug the square plug from the starter next time it does it, see if it stops
     
  3. Adam peachey Forum Member

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    Thanks m8,where is the plug?? &what does it do?thanks again
     
  4. rubjonny

    rubjonny Administrator Staff Member Admin

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    on the back of the starter motor, its power from ignition switch to tell it to turn over :)
     
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  5. Adam peachey Forum Member

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    Hi there, the only square plug i could find was on back of solenoid?is that the bit you ment?as its impossible to get out. &couldnt see nothing on the starter itself.is there a starter relay?in the fuse box, thanks Adam
     
  6. Adam peachey Forum Member

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    Oh do you mean, disconect the start wire once started?
     
  7. rubjonny

    rubjonny Administrator Staff Member Admin

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    yes exactly, while the starter is stuck on making the whiny noises, unplug that connector and see if it stops ;)
     
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  8. davidut5 Forum Member

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    It means you have 12v start command from somewhere but check anyway with a light bulb on that plug and ground, or a multimeter.
    This signal comes from ignition switch.
     
    Last edited: May 5, 2020
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  9. rubjonny

    rubjonny Administrator Staff Member Admin

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    ok so either there is a short to live somewhere on that wire between the starter and the ignition switch, or the ignition switch itself is faulty. if it has an alarm installed it could be this which is playing up. next test is when the starter is playing up, unplug the ignition switch plug. if it stops, you need another ignition switch. you can test the new switch before you install it by plugging it to the loom and turning the switch with a screwdriver
     
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  10. Adam peachey Forum Member

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    Thanks again,
     
  11. Simon Peter Dodgson Forum Member

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    I had a 1978 audi 80 that did this. Burnt out starter motors every 2 months. In the endI used to start it under the bonnet by putting a spanner across the +ve from battery to spade terminal as had no money for an ignition switch. Make sure its not in gear!
     
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  12. rubjonny

    rubjonny Administrator Staff Member Admin

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    its possible the alarm is causing it, unplugging the ignition switch will narrow it down :)
     
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  13. Adam peachey Forum Member

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    But how will I start it,would as another member said, try,starting by using a spanner between plus and spade on starter,as he thought it was ignition,?
     
  14. Adam peachey Forum Member

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    If I get a new switch, will my key still work?or is it the part at the bottom of ignition?
     
  15. rubjonny

    rubjonny Administrator Staff Member Admin

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    unplug it after the car is started and turned off, and starter is stuck on ;)
     
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  16. Adam peachey Forum Member

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    Thanks, will that give me a shock if i dont insulate the spanner?
     
  17. rubjonny

    rubjonny Administrator Staff Member Admin

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    ignition switch and lock isn't coded to anything, just the key chip to cluster so no headaches doing ignition lock swap if required
     
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  18. Adam peachey Forum Member

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    So the bit you change is at the bottom of ignition?so keep the same key?
     
  19. Adam peachey Forum Member

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    Yes you were right, took the start wire of once started&it worked, put it back on &wiggled it &it was intermittent, but i noticed the alarm isn't working?is it linked to the ignition switch?many thanks Adam
     
  20. Adam peachey Forum Member

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    Thanks, just noticed the alarm is not working, still got light flashing, but cant set it off, do you think it is the bottom of ignition switch that needs replacing?
     

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