Hi All

I have a 2016 Ford Edge Sport 2.0tdci and whilst driving home last week it suddenly cut out during mild acceleration. Until that point it was running fine! Pulled over switched it off and it restarted straight away! Seemed to run fine until I tried to overtake and guess what? It cut out again. Started up again and steadily drove home. Fitted a new fuel filter and fuel rail pressure sensor. No different!

Having had diagnostics done, it was showing fuel pressure regulator low pressure? Cleared the errors and restarted and no errors, until it cuts out again.

Has anyone had a similar issue and how did you sort it as it’s doing my head in! 

Thanks

Hopefully it's just a weak lift pump in the fuel tank.

If it's the high pressure pump they're £600+.  The regulator is on the HP pump but not available separately.  HP is fitted to the top of the engine on these, driven directly from the camshaft.

Hi

Thanks for the response. I’m guessing it’s the high pressure pump looking at similar mk5 mondeo posts with the same engine. 
weirdly it doesn’t happen all the time. Just occasionally when accelerating! Pretty scary if overtaking anything! Lol

would the lift pump cause similar issues?

11 hours ago, Russ66 said:

Hi

Thanks for the response. I’m guessing it’s the high pressure pump looking at similar mk5 mondeo posts with the same engine. 
weirdly it doesn’t happen all the time. Just occasionally when accelerating! Pretty scary if overtaking anything! Lol

would the lift pump cause similar issues?

The lift pump would cause exactly the same symptoms.  If the lift pump is weak, the HP pump simply doesn't get enough fuel supplied to it.  Both will generally only cause the car to cut out under higher load where more fuel is required.

We tend to get smaller models on here though, so if the Mondeo forum is suggesting the HP pump then I wouldn't argue with that.  At least the part is easy enough to replace on these, doesn't require cambelt removal & replacement as many HP pumps do.

You might want to change the fuel filter too. No point having pressure if the flow isn't there!

My wife has a 2017 edge, had it from new on 52,000 miles now. This has happened to her on a number of occasions but usually in slow traffic when the stop/start is activated. 

She had the AA out twice, and they offered the suggestion of a dodgy stop/start system. They suggested that it is switched off at the start of each journey.

I have plugged in my Forscan and it diagnoses a camshaft sensor fault, though i am not entirely convinced of this being the issue. Our Ford dealer told us that they could not see any fault codes on their system. This issue only began after they had serviced it and changed the brake fluid.

Coming home tonight whilst I was driving, and at approx 50mph, it petered out on me. Switched the ignition off, locked and unlocked the deadlocks, and it started again straight away. 

I am interested in the high pressure fuel pump theory, as at the beginning of this year I had a major fight with Ford over the fuel pump drive mechanism disintegrating and their insistence that in pay £2,300 for the repair, which they did not get after some legal argy bargy. I was initially suspecting a fuel shut off soleniod/immobiliser issue to create this cutting out issue.

Has the fuel pump replacement worked? I am struggling to find good information on these vehicles and all help, and suggestions are gratefully received. 

Regards, Nick.

 

1 hour ago, Windlesham boy said:

Has the fuel pump replacement worked?

You could send @Russ66 a private message and ask the question. They haven't visited the forum since 28th August 2023, but they should still receive a direct e-mail