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Thread: hesitating - limp mode

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    Regular Member madman's Avatar
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    Default hesitating - limp mode

    the old girl started hesitating a week ago, chucked some millers in but today twice ive been hit by limp mode. could this be the fuel filter , had the EGR replaced a couple of years ago but there was no hesitating then.
    am i being too hopefull of it just being the fuel filter? off to cornwall friday 300 miles so a little worried

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    Regular Member madman's Avatar
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    anyone?

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    fuel filter unlikely unless

    a) you got water or other contaminants in there
    b) you've got a partially de-pressuired system eg leak

    i' start with EGR clean + boost sensor clean + check your swirl bar connector and it s actuation.

    nothing to lose but a bit of time and £5 on carb cleaner

    bargain if it works

    are you brakes ok?

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    Regular Member madman's Avatar
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    brakes are fine.
    cheers mate i'll get em checked

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    Forum Moderator John LE's Avatar
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    Default

    Quote Originally Posted by mparks8590 View Post
    fuel filter unlikely unless

    a) you got water or other contaminants in there
    b) you've got a partially de-pressuired system eg leak

    i' start with EGR clean + boost sensor clean + check your swirl bar connector and it s actuation.

    nothing to lose but a bit of time and £5 on carb cleaner

    bargain if it works

    are you brakes ok?
    As it's a dti we'll ignore the swirl bar bit.

    Firstly cheack all of the pipes, Vacuum and Boost. The boost pipes on the DTi are made of cheap rubber and do split giving the symptoms you describe.

    If the EGR hasn't been cleaned since you had it replaced 2 years ago I can nearly guarentee it will be coked up and in need of a clean. The boost sensor (due to where it sits) attracts oil vapour and over time this can clog the sensor so clean that too.

    Once you've tried all of the above report back

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    Thumbs up

    how did you work out it was a dti?

    couldn't see anthything in post.

    anyway just hope the corwall trip goes well

    cheers

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    Forum Moderator John LE's Avatar
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    Quote Originally Posted by mparks8590 View Post
    how did you work out it was a dti?

    couldn't see anthything in post.

    anyway just hope the corwall trip goes well

    cheers

    It's on his profile page

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    aha

    i just thought you had jedi powers


    added that to my checklist from now on

    ......

    I can feel a whole new thread coming on now on a star wars theme

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    Regular Member madman's Avatar
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    had the egr cleaned at a garage near work. we got to cornwall and back circa 900 miles and only hit limp mode about 10-12 times on some long uphill sections on the a30. gonna check the egr and boost valve this weekend myself. cheers guys

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    Are you getting a flash of the radiator light when limp mode comes in, if so id put 50p on it being the crank shaft speed sensor. clean the egr first as thats free but if the fault remains get the codes cleared and see what gets chucked up.

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