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Title: H E L P ! I'm flooded Post by Toriitom on Feb 19th, 2011, 7:56pm Hi I need HELP. As you may have read in OBD Advice I am having problems with my Scorpio. To try and find the reason for my misfire I was going to take the Engine Loom out and check if there is a fault in it. Today I went to the car and the radiator fan on the OS was running - I don't know why as there was nothing left on in the car. I had the battery on charge as it was flat yesterday. To stop the fan running I decided to remove the connector until I find out what was happening. I disconnected the MAF connection and the cable under the air tube. I then unclipped the MAF and unscrewed the two jubilee clips at the inlet manifold. When I went to pull off the air tubes I got a surprise - they were full of petrol. When I got the complete fitting off and poured the petrol into a can I got about half a gallon. Can anyone explain how this is happening; Is this the cause of my misfire; Is this why it goes through petrol as though there is no tomorrow??? Any help would be gratefully appreciated. Tom PS That is besides finding out why the fan was running! |
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Title: Re: H E L P ! I'm flooded Post by gozz on Feb 19th, 2011, 10:52pm Tom. Theoretically one fan cannot run without the other,since they are wired in series for slow speed and parallel for fast,maybe the N/S fan is faulty ? if the relay is jammed shut maybe the fans would receive continuous power,big green relay down low behind O/S headlamp. Regarding the petrol problem,this is something I haven't come across on 'modern' engines,logically if fuel is in the inlet system it COULD come from either direction,ie if the crankcase was full of fuel due for instance to a busted injector,which is hardly feasible,the breather system could suck it into the intake.The other possibility is that the inlet manifold is being flooded via a jammed injector.Is there any chance that your fuel pump is running when the key is switched off due to a faulty pump relay or wiring fault ? GOZZ. |
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Title: Re: H E L P ! I'm flooded Post by Toriitom on Feb 20th, 2011, 1:08am Hi Gozz Thank you for your input. The fan problem does not worry me as much as the petrol problem. I will check the relay; it could be jammed as you say. With the petrol problem; if it is a faulty injector then, as you point out, the crankcase would be full. The only way I can check this is by removing the spark plugs and dipping to see if there is any fuel there. I am puzzled now; if there is a faulty injector, would this cause the misfire and would this also account for the DTC P1351. It would be great if this was the solution to all my problems. I will also check the fuel pump (when I find it), the cables and the relays. Thank you for your help, Gozz Tom |
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Title: Re: H E L P ! I'm flooded Post by Simmo on Feb 20th, 2011, 7:46am This page (http://www.fordscorpio.co.uk/fuelsystem.htm) may help. :) |
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Title: Re: H E L P ! I'm flooded Post by Toriitom on Feb 20th, 2011, 2:01pm Hi Simmo Thank you for your reply. I did find this page and I now know where the pump is. I think that even though it is a bit of a chore to do, I will check the pump (and the filter while I'm down there). Tom |
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Title: Re: H E L P ! I'm flooded Post by Mike H on Feb 20th, 2011, 3:06pm You should hear the pump start up soon as you turn it on. Maybe even while it stays on. Injector stuck open sounds most plausible I suppose, could you take the intake hoses off, turn it on and see what happens? Like petrol starts appearing! |
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Title: Re: H E L P ! I'm flooded Post by Toriitom on Feb 20th, 2011, 3:25pm Hi Mike Thank you for your posting. Your idea of turning the ignition on and waiting to see what happens sounds feasible. The day that I connected up the OBD I had the ignition on for a good while during the setting up of the device and then taking the readings. I will try to repeat this tomorrow and I will report back my findings. Thanking you Tom |
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