Hi all,

Firstly I must appologise for my first post being a question to a problem I have,not a good way to start I guess but I am pretty stuck at the mo so any help would and will be very much appreciated.

I have just brought a mondeo tdci ghia x estate 2002,nice car but I have a cutting out problem,I have searched all the posts on most of the sites but cannot find anything similar to my problem.....?I have found many posts with the cutting out problem but not the same as the one I have.

1. On starting the car from cold it starts first time with no untoward noise or smoke and drives fine until you hit 3,000 revs at which point the car shuts down and you have to turn the key off and then it will restart immediately.

2. If you let the car warm up to normal operating temperature then it will drive and rev all the way up to 4,000 revs with no problems at all....if you rev above 4,000 revs then it will cut out again.

3. The car pulls like a train,does not burn oil and the turbo is fine,there is no judder on the engine etc to suggest a pump or injector problem and the car only cuts out at the revs I have pointed out...otherwise it will drive all day long!
I have just changed the fuel filter and found loads of emulsion in it along with the normal crap you get in there,there were no metal filings etc but to be honest I have never seen so much crap come out of a filter.
Having done that I restarted and had a drive around and didnt really see any difference so parked it up and opened the bonnet for another look.......

On looking around under there I noticed diesel seeping/bubbling from the front of the engine......There is a rail that sits just under the head with four adjustable nuts connected to it.....one of these adjustable screw/nuts that goes into the engine was bubbling diesel out of it where it goes into the engine.
It would suggest to me that when the engine is cold this leak would be much worse than when its hot hence maybe the car cuts out at much higher revs than when cold???????????

Can anyone tell me what these adjustable nuts/screws are and what they do? can anyone otherwise shed any light on the problem?

Many thanks to all for taking the time to read and any replies !

Regards all,
Paul.