Ford Mondeo car wont start, suspected fuel problems

allan. I had exactly the same problem with my mondeo diesel a while back. Had auto electricians out to plug it in, no fault codes came up. Had my brother look, even considered puttin an external fuel pump in the boot. Spoke to a guy from AA and if told me it most likely a cam shaft position sensor. Located at front of engine 2 screws holdin it in place. Went too ford dealer paid just under 20 quid for a new 1. Replaced it in less than 5 mins. Never had a problem with it since. Hope this helps. :)

Cheers Mark i will try this tomorrow

Good solution suggested by " marc fletcher " , all the symptoms of cam sensor .If not that (which it usally is ) check crankshaft sensor .

Apparently Ford say there is no camshaft sensor on the 2002 TDDI, would replacing the crank shaft sensor possibly work guys or is it completely different?

Looks like that year / model doesn't have one .This is for later model ,

Ford Mondeo III (B5Y) 2.0 16V DI / TDDi / TDCi › Sensor / Probe › Hella 6PU 009 121-681

Sensor, camshaft position for Ford Mondeo III (B5Y) 2.0 16V DI / TDDi / TDCi
Part Number: 6PU 009 121-681

21,50 EUR
incl. 19 % Tax,Shipping Info

Vehicle-specific Criteria
•From construction year: 03.2006

Criteria
•Has the same colour as the orginal part: Smoke Grey
•Number of ports:

Certainly worth checking the crank shaft sensor .

Hi Allan,

From what you have described i am more inclined to say its a fuelling issue.

Firstly by opening the diesel line you have allowed air into the fuel system. the car will not start now as the fuel lines need to be primed. Try turning the ignition on to the second point for 5 seconds and off several times and then see if that starts it. If not you will need to remove the diesel filter fill it with diesel and then prime the whole system manually by puchasing a hand pump usually readily available from a parts store, about ten pounds or so, and bleed it that way. (check mondeo forums for more in depth instructions as this is a novice mistake and happens all the time with them)

Now down to the main fault, dont go on your mates advice! These cars run on very high fuel pressure usually between three and five bar, just opening the fuel line will only show if theres fuel there, not what pressure its under. when you first start the car modern engines automatically prime the system to the correct pressure, but if its not getting enough fuel the pressure will eventually dip too low for the car to function and eventually stop. Two to three miles is about all you would get from a faulty pump.

Get it running and get it pressure tested first. If it does come back with low fuel pressure you will be looking to replace the fuel pump sender within the tank. Also the bracket which secures the holder to the base of the tank only has a small opening in it to allow fuel through to the pick up and this could have became blocked with deposits or sh*t which you always find on base of the tank.

My gut instinct is that £68 worth of diesel means it must have been rather low on fuel and filling it could have easily dislodged deposits on base of the tank.

If it does say its low pressure i would strongly advise you to seek a garage to do the work as working with fuel is highly dangerous and you have a full tank of it that will need to be removed. If however you choose to do the work yourself then leave another comment and i will send instructions to how i would do it.

I hear the phrase "just filled it up" and I hear alarm bells.
and right after that it fails!hmm.
Take off the fuel filter carefully and empty the contents into a container,go have cuppa while this is happening,a vital mechanics aid.
now have a looksee at the contents,your looking for pure diesel,what I suspect you'll see is diesel on top of a layer of water in the bottom of the container.
It might be crank/cam or other sensor,or it might be contaminated fuel,something I have to say I'm seeing more and more.

Hi, Sorry I haven't updated for a couple of days but been working. Anyway, primed the system today and the car fired up lovely, drove for a mile and again stuttered and stopped as if it had run out of fuel. With the ignition on got under the car and couldn't hear the fuel pump running, Split a pipe between pump and filter and no fuel came out so i thought i would remove the pump and replace it. When I removed the pump (by the way the pump is not in the tank like on some it is next to the tank underneath the car held outside the tank by a bracket)I checked it with a 12V supply from the battery and the pump works fine? will check in the next few days but does it sound like an electrical problem with getting the power supply yo the pump??

Forgot to mention that i have also changed the crankshaft sensor and made no difference

Hi all,
Just a quick update, run further tests on the fuel pump when it was off the car powered by an independant 12v supply and found that the pump worked but wasnt very powerful and also cut out. Changed the fuel pump started like a dream 40 miles later still running so well pleased with all your help i recieved on these pages.