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Range rover classic problem starting up

Discussion in 'Range Rover' started by ct21, Jul 13, 2018 at 6:30 PM.

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  1. ct21

    ct21 Member

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    Hi i was wondering if anybody could shed some light on the problem i am having with my classic 3.9 efi auto petrol/ lpg , if it has been stood for more than say 8 hours i have to turn it over for what seams like ages
    (probably 15 to 20 seconds) then it will fire up, so i bought an in-line spark tester which goes on top of the spark plug and i have noticed that there is no spark for the 15 to 20 seconds that it has been turned over and the second i see a spark it fires up straight away, any help would be appreciated
     
  2. ukadamwest

    ukadamwest Well-Known Member

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    are you shutting it off from running on LPG ?


    try switching it back to petrol and let it idle till the fuel runs back into the fuel rail before switching it off and see if that makes a difference when starting the next time. try it and let me know.
     
  3. ct21

    ct21 Member

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    I haven't tried that, but i will do it and let you know if it works,
    thank you
     
  4. Ratae

    Ratae Well-Known Member

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    Worth a try, but if you have no spark at all for the 15 to 20 seconds you say then that should make no difference.
     
  5. ct21

    ct21 Member

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    That,s what i thought but i am willing to try anything to get it to start normally :)
     
  6. Ratae

    Ratae Well-Known Member

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    Mine's on dual fuel with the changeover being switched so I control when it changes - it's a 3.5EFi & I replaced the gas ring with a BLOS some years ago.

    Starting switched to petrol is usually pretty much instant. It's a flapper so the fuel pump runs either on cranking OR when the flap is open. Any issues in the fuel line that could allow fuel drain back are likely to give a delayed start. I believe yours is a hotwire & that runs the fuel pump for a few seconds on turning the key?

    If I start on LPG I usually wait a few seconds after turning ignition on - I can hear the 'click' as the solenoids open - & that also gives pretty much instant start. If I don't & just go straight to cranking then it does take a few seconds, but nowhere hear the amount of time yours is.
     
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