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Help Please Fiesta Zetec S Diesel 2009 Cold Rough Idle

mattyr
mattyr
in Ford Fiesta Club

Featured Replies

hi everyone please help have just bought this car and when cold it idles like its running on 3 cylinders ..runs fine when warm,checked codes nothing showed up..have tryed and check egr its fine any idears

  • Quote


    Try changing your HT leads/spark plugs, if its still happening possible coil pack? I had that on my 03 plate fiesta

  • Quote
    • Author

    Try changing your HT leads/spark plugs, if its still happening possible coil pack? I had that on my 03 plate fiesta

    hi m8 its a diesel.....but may have found the faul think its number two injector removed the plugs off the injectors when the engines cold number 1,3,4 injectors caused the engine tu run worse but there was no change when i removed number 2....if i buy a injector with the same part number and fit it is it easy to recode them or is it a main deal job
  • Quote

    No idea mate. I only said ths coil pack because I had a similar problem with mine but mines a petrol

  • Quote
    • Author

    rough idle problem,hi think i have an injector fault,when cold if i remove plug from injector 2 the engine rough idle doesnt change when i remove plugs from 1,3,4 injector the car idles even worse. so it seems number 2 injectors not working right.....tried this when engines warm and running right and number 2 injector causes misfire like the other injectors if removed....anyone had this fault...and if it is an injector 2 fault can i change the injector for a new one with the same part number....please help

  • Quote

    If you just bought it from a dealer take it back and complain.!

    As it runs ok when warm it sounds like a glowplug has failed.

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    • The Digestive Forum Roundup (24th May - 31st May 2026)

      Steve ·
      The Digestive Forum Roundup (24th May - 31st May 2026) We hope this email finds you well and enjoying your week. As always, our forum has been buzzing with activity, so we’ve compiled the highlights for you. Plenty of interesting discussions are taking place, especially around the Ford Focus and Fiesta models. Starting off with the Focus, many members have been discussing issues with the Emergency Call System, particularly in the Mk4 model. PLB raised concerns about persistent malfunctions, a se
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