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Discussion in 'Land Rover Discovery' started by Taffy 1956, Apr 12, 2022.

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  1. Taffy 1956

    Taffy 1956 Member

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    HELP
    My disco for no reason stopped running without any warning refused to start have changed fuel pump fuel filter head gasket cylinder head fuel regulator cam sensor battery starter motor ECU injector washers checked immobiliser still won't start ?
     
  2. Beneagles

    Beneagles Well-Known Member Full Member

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    Age/model/engine?
    Dead on key?
    Ignition lights but no action?
    Churns but doesn't catch?

    No such thing as too much info
    :)
     
    kermit_rr likes this.
  3. Taffy 1956

    Taffy 1956 Member

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    99
     
  4. Taffy 1956

    Taffy 1956 Member

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    99 disco 2
    Turns over on key all ignition lights work even tried towing it as a last resort
     
  5. ronsealdeath

    ronsealdeath Sagging Member

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    Check compression
     
  6. sierrafery

    sierrafery Well-Known Member

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    Did you purge it with the 5 throttle method more than once? can you hear the pump running
     
  7. Taffy 1956

    Taffy 1956 Member

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    Yes
     
  8. Taffy 1956

    Taffy 1956 Member

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  9. Taffy 1956

    Taffy 1956 Member

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    Compression ok
     
  10. sierrafery

    sierrafery Well-Known Member

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    You need to plug in a diagnostic tool to see if the ECU gets crank signal
     
  11. Taffy 1956

    Taffy 1956 Member

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    That was done and a different ECU was fitted and programed still no joy
     
  12. Beneagles

    Beneagles Well-Known Member Full Member

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    Have you unlocked it with the key code?
    :)
     
  13. sierrafery

    sierrafery Well-Known Member

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    And how much is the rpm reading while cranking?
     
  14. Taffy 1956

    Taffy 1956 Member

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    I will check today but mechanic said it was ok even tried a new starter motor to see if that would make any difference
     
  15. Taffy 1956

    Taffy 1956 Member

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    Yes
     
  16. Taffy 1956

    Taffy 1956 Member

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    Did that even tried a new crank sensor
     
  17. sierrafery

    sierrafery Well-Known Member

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    There is a common problem with the crank sensor wiring so a new sensor can have no effect, aamof at this point seems very like some engine harness issue, if you have scanner start it with spray cos it will run few seconds and watch the rpm reading then also run injector circuit test to see if they click on scanner command
     
  18. Taffy 1956

    Taffy 1956 Member

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    As far as I know that was tried there's been 5 mechanics looking at it and everyone of them would be classed as expert Land Rover mechanics and it has them all stumped it is driving us all mad because before it stopped without any warnings or problems it was running perfect and just died one morning
     
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