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hi my land rover disco 3.9 v8 starts off of a bump but not off the key

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Old 09-21-2009, 12:33 PM
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Default hi my land rover disco 3.9 v8 starts off of a bump but not off the key

i just become a proud owner of my first land rover . its been gas converted . and supposedly working fine until gas ran out and was switched too petrol
. when you put it on petrol it turns gets a spark but refuses to start . but will start off of a bump . has any one got any ideas please . i am yet too put gas in and see if it works off of that

thank you andy
 
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Old 09-21-2009, 01:36 PM
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Did you reset the inertia switch after it ran out of gas?
 
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Old 09-21-2009, 01:52 PM
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Ok, for all of us Yanks by "gas" he means propane.
By petrol he means gasoline.

Typically there is a switch that you need to throw to switch back and forth from "gas" to "petrol"
The trucks fuel system needs to know which one to use and this switch tells it what fuel to use.
Make sense?
Call the person you bought it from and see where the fuel cut off switch is.

Unless you disable the "petrol" fuel pump it will pump "petrol" into the engine as well as "gas".
So there must be a switch to turn power to the "petrol" fuel pump on and off as needed.

Let us know what you find.
 
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Old 09-21-2009, 07:19 PM
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Originally Posted by Spike555
Ok, for all of us Yanks by "gas" he means propane.
By petrol he means gasoline.
LOL I honestly thought he had converted it from diesel to gasoline. In my head I was like "WHY WOULD YOU DO THIS!!??!" but I didn't say anything. Rofl.
 
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Old 09-22-2009, 11:04 AM
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Default hi .

well i managed to get it driving really badly and took it to get tanks filled with propane . which as not helped as wouldnt switch over . but really i want to get it running good on petrol befor i worry about propane . the man at garage said he thinks its vacuum problems . is this common . its a 1995 efi 3.9 v8 .

thanks for your posts and whats the inertia thing you mentioned please
andy
 
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Old 09-22-2009, 11:11 AM
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it wont start off of the key the engine just turns over seems to get fuel and spark . but starts straight away from a tow . but idles bad and dies you have to keep revs up when driving it miss's and runs rough . but when warm it did seem to start off of the key after 15 mins of nervous oh no im going to break down any min driving
 
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Old 09-22-2009, 05:53 PM
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Ok, so it turns over but wont start.
It is a 5 speed and if you tow it and dump the clutch it will start and run rough.

Sounds like a tune up is needed very badly.
That means new spark plugs and spark plug wires.
Also have your ignition timing checked.
If that is off it will run very poor.

The no idling on its own sounds like a bad idle control valve, but do the tune up first.

The inertia switch is a rubber button on the fire wall, it is on the left side of the truck if you are looking at it from the front on US models.
I do not think that is your problem but pressing it for 5 seconds to try and reset it wont hurt anything.
 
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Old 09-23-2009, 02:20 PM
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i have found worn and split pipes so far sucking in extra air which i have replaced . its had a full service already new plugs dizzy cap leads etc befor i got it . think i am going to have to spend
 
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Old 09-23-2009, 05:08 PM
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PLEASE let us know what you find so that if some one else has a similar problem we can help.
We are all trying to learn.
 
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Old 09-25-2009, 02:03 PM
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Default hi guys

thankks for all replys
if i disconect air flow sensor nothing happens to the poor running . will this means its not working . could this be the cause of my starting and running problems . how do i check .
at least i have had plenty time to clean the paint work seen as it dont go any where lol
andy
 


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