Cutting out after prolonged motorway travel - Ford C-Max Forum
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post #1 of 4 Old 07-15-2011, 05:25 PM Thread Starter
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Join Date: Jul 2011
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Hi everyone - new to the Forum. Generally I really like the C-Max, its very versatile, but really wish I'd gone for an auto. We only ended up with a manual because the wife fell in love with the Sat Nav screen which I have to say is brilliant. Phone and radio etc are sooo easy to control.However, I have a strange intermittent problem. After sustained high speed travel usually motorway for say half an hour or so, on slowing down at say a junction, sometimes the engine will cut out. If it cuts out it won't start again for 15 mins or so. If it doesn't cut out it will cough and have to be coaxed back into life.Had it into a main dealer but they said no fault found and charged me 40 for the priveledge, even though patently there is a problem. Recently took it to a tame local garage who said that fault codes were showing up on fuel pump and pressure regulator. They also told me that a software upgrade was available on this engine - 1.8 TDCI.Before I have another go at the dealer, has anyone else got any experience of anything similar? How do you find out what software version the car is running and what the latest available version is and what its supposed to fix?About a year ago my wife put petrol in the car and ran it till it stopped - bless - and I suspect that might be the root cause but trying to work out the lowest cost way forward.Thanks

2008 1.8 TDCI Titanium with Sports Pack/Sat Nav
Chris S is offline  
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post #2 of 4 Old 07-16-2011, 12:57 AM
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Hi Chris & welcome to the club[img]smileys/smiley31.gif[/img],Not heard of your problem before so it could well be the petrol incident is at fault.If you have a fuel/diesel specialist near you they`ll probably be able to help or at least suggest a cure.Probably needs stripping down & given a complete clean throughout the whole fuel system though.

MetalMicky ( Mike)

2004 2.0 TDCI Zetec
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post #3 of 4 Old 07-16-2011, 04:20 PM
Join Date: Sep 2010
Location: London
Posts: 70
When you wife put the petrol in the car did you have the tank drained and cleaned? Petrol can affect the Lamba sensor and often these have to be replaced, was this done at the time? The extent of the affects of this mistake will vary dependant on how soon you realise that it has happened, obviously if you dont drive the car the affect is minimal if you do drive the petrol circulates around the fuel system and into the cylinders and can also cause premature wear.

2006 1.8 Petrol Ghia Silver
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post #4 of 4 Old 07-16-2011, 04:34 PM
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Join Date: Oct 2009
Location: Chelmsford
Posts: 1,085
I would of thought that the petrol in the tank incident would of caused issue earlier.
Why did garage not just flash cal update?
Cannot explain the cutting out, I would expect once module knows tdc and "sync'd" with camshaft it should run, who knows!? maybe non start is cam sensor ( particularly if grey one is currently fitted ), or, maybe as fault code suggests, it could be a fuel pressure sensor, I know the 1.8 has a spherical accumulator, opposed to a fuel rail, much better design!

2010 Titanium 2.0 TDCI Panther Black.
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