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Automatic gearbox question

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  • 03-06-2006 8:14pm
    #1
    11811
    Registered Users Posts: 1,731 ✭✭✭


    Hi,I have an automatic vw golf,mark 4.for some reason the speedo goes crazy(bounces between 0mph and forty with no relation to acceleration or speed) when i put it in reverse,anyone got any idea why?The reverse lights dont work either,the bulbs are fine as is the fuse!
    Cheers


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    #2
    colm_mcm
    Registered Users Posts: 73,455 ✭✭✭✭colm_mcm


    sounds like an earthing problem


  • Options
    #3
    crosstownk
    Registered Users Posts: 12,863 ✭✭✭✭crosstownk


    Could be a fault with the road speed sensor in the gearbox or possible something amiss with the instrument cluster - I've seen both give this sort of trouble. Best thing is to get a diagnostic check done. The speed sensor and the instrument cluster can be checked via diagnostic computer.
    Untitled Image




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    #4
    Esel
    Registered Users Posts: 22,306 ✭✭✭✭Esel


    Possibly some kind of switch not making contact? If there is such a switch, its function might be (i) turn on reversing lights, and (ii) disable speedo. Try lifting the gearshift boot and having a look.

    Not your ornery onager



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