Mondeo Mk3 petrol FTP.

[tommytwo]

Hi Guys, Looking for some help with my Mondeo Mk3 2.0 litre petrol Duratec which failed to start this morning. 170k miles but engine has run perfect up to now and the ignition module and plug leads were renewed last year or 5000 miles ago. The symptoms are:

 

Turned the key first thing and the engine coughed and stopped. Tried again and same result. Third time, the engine did not fire and no amount of cranking would persuade it to start.

 

I have checked Fuse 27 in the under bonnet fuse box and the relay, both seem good. My thoughts are that the fuel pump has failed. Have a Haynes manual but this seems to have gone walkies just when I need it, bloody typical!

 

Any advice is very welcome including "Just bloody scrap it". It has crossed my mind.

 

[Snipes]

can you chuck easy start down it's gullet would you like an old Pinto Sierra ?

[twosmoke300]

Prob fuel pump - disconnect fuel pipe into fuel rail , flick the ign on for a second - should piss fuel out . If it doesn't then hook a test light / meter to the two biggest wires on the pump under the back seat and check for battery voltage when the ign first goes on ( only supplied with power for 3 secs or so when keyed on ) if it has power then the pump is toast .

[tommytwo]

Thanks twosmokes300, no power at all to the pump so my search continues.

[twosmoke300]

Even in the first few seconds after ign on ?

[tommytwo]

Just been out to the car, turned the key and  it started as per normal. I have no real explanation for this except that the battery condition was not on top form, as the car now gets very little use. I did notice when cranking that the cranking speed fell quite quickly, indicating that the charge in the battery was less than optimal. The battery was on charge for 5 hours before I tried again. I have no real explanation for such strange behavior. I did view a Youtubbe video where this strange behavior was described. That mans car had all the symptom,s of a dead fuel pump and it came back to life once the battery was charged.So maybe my battery is on the way out.

 

And I still can get no voltage reading from the two fat wires to the pump! A strange day.

[Noel Tidybeard]

car maybe registered a ftp and activated the flooded engine protocol- just crank with foot to the floor like you did with a mk iii escrote every day!

[Felly Magic]

It could well be the fuel pump on it's last legs, they are prone to burn out the contacts to the actual pump motor, so much that it melts the plastic plug, pumps are an arse to change without a nibbler & tin snips

[vaughant]

Do these have a crash switch like the earlier fords in the passenger footwell?

[Felly Magic]

Yup they do behind a circular hole on the wing side of the LHS footwell

[twosmoke300]

Wouldn't reset itself tho

[Felly Magic]

It does sound the same as what ours did tbh, trouble is, I fitted a s/h pump and still have issues now, fuel starvation after running for a while

[omegod]

Crank shaft sensor ? fuel pump/injector relay ? 

[scaryoldcortina]

I agree, the pump is dying, brushes are making poor contact so sometimes it can't start up. Random non starts are just the first step to it stranding you in a supermarket car park with a boot full of frozen food.

 

It's interesting sometimes to bung the scope across the fuel pump supply because you can see the dip in current when the brushes pass over the dead bit of the commutator.

[twosmoke300]

I was gonna suggest that but prob a bit ott for here

[Felly Magic]

Lift the seat base in the rear, then cycle the ignition on and off, if you don't hear a bzzzzt click from the pump, it's goosed, if it runs constantly, that is a sign your ECU is on it's way out, also a common fault, especially on 2.0 petrols, missfire spikes cause the ECU to shit it's self, happened to a mate's 2.0, diagnosis, James Brown. To change a fuel pump properly it is also James Brown time, but if you cut back the hole in the floor with a nibbler and peel it back, you can do the swap with the tank in situ, just have plenty of paper towels around to mop up the spilled fuel. 

[scaryoldcortina]

I was gonna suggest that but prob a bit ott for here

 

But I thought everyone had a storage scope in their toolbag... it's the 21st century ffs.