Hi Guys new to this forum and not very mechanically minded..I have a Jan 2008 Ford Focus 1.8TDCi. No problems with it until now. No.1 fuel injector seal was leaking so took it in to a diesel fuel injector specialist as recommended and it was fixed (new seal). Since then between 1800 and 2300 rpm I get a juddering when accelerating. It seems to ease when below or above that. Took it back and apparently all the injectors are ok (tested individually on Siemens machine) but too much fuel appears to be going through No.3 injector. Took it to a Ford Garage as it was suggested that the PMC needed resetting or I think that was what they called it. Anyhow done and am told no faults showing, but problem is still there. Everyone has been quite helpful but no one seems to know what is causing it. Ford now say they will have to get the car in for in depth testing and I am concerned about potential labour charges.

So my question to you all is simply has anyone heard of this before, or know what might be causing it

Thanks in advance for any suggestions

[quote name='petecva' timestamp='1307980934' post='131592']
Hi Guys new to this forum and not very mechanically minded..I have a Jan 2008 Ford Focus 1.8TDCi. No problems with it until now. No.1 fuel injector seal was leaking so took it in to a diesel fuel injector specialist as recommended and it was fixed (new seal). Since then between 1800 and 2300 rpm I get a juddering when accelerating. It seems to ease when below or above that. Took it back and apparently all the injectors are ok (tested individually on Siemens machine) but too much fuel appears to be going through No.3 injector. Took it to a Ford Garage as it was suggested that the PMC needed resetting or I think that was what they called it. Anyhow done and am told no faults showing, but problem is still there. Everyone has been quite helpful but no one seems to know what is causing it. Ford now say they will have to get the car in for in depth testing and I am concerned about potential labour charges.

So my question to you all is simply has anyone heard of this before, or know what might be causing it

Thanks in advance for any suggestions
[/quote]

On the basis the car is just out of its three year warranty, theres not too much you can do, other than try and get the dealer to take it for a test drive, if you can suggest the issue was there before the expiry of the warranty, then it *may* get you somewhere, reducled labour if nothing else.