Engine Drivetrain 1st Gen Cooper S Most liked posts in thread: 05 MCS fuel cutting out???

  1. AliceCooper

    AliceCooper Club Coordinator

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    #15 AliceCooper, Feb 22, 2014
    I was having similar issue. Did everything including fuel filter. On a whim I removed injectors and sent them for a rebuild, a lot of folks don't realize there are little filters in each of those injectors that can get plugged with crap over time. Problem gone. Inexpensive fix. This is who I used Mr Injector - Home
     
  2. Nathan

    Nathan Founder

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    #2 Nathan, Sep 22, 2010
    I'm going to guess it is the "lifetime" fuel filter.
     
  3. Crashton

    Crashton Club Coordinator

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    #13 Crashton, Feb 21, 2014
    Start with the easy stuff first. How old are the plug wires? If they are original change them out, no need for fancy high dollar ones oem or equivalent will do. Look at the coil pack terminals & clean them if needed. No need for a MSD coil or Screamin Demon pack.

    Report back if this isn't it.
     
  4. panaphobic

    panaphobic Club Coordinator

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    #3 panaphobic, Sep 22, 2010
    That what I was thinking too Nathan. I'm definitely going to change it out even if something else is the problem. I saw a write up on how to do it and I saw the picture of the old filter, new filter, and an old oil filter for comparison. The fuel filter was just as dark as the oil filter! Lifetime part my @ss!!! :incazzato:
     
  5. SooperCooperInfo

    SooperCooperInfo Member

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    #4 SooperCooperInfo, Sep 23, 2010
    Here's a fuel filter [ame="http://www.lonestarminiclub.com/forums/showthread.php?p=4062#post4062"]DIY[/ame] wth pics that may further assist you. Good luck.
     
  6. ColinGreene

    ColinGreene Well-Known Member
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    #5 ColinGreene, Sep 23, 2010
    i would start with the filter then the pump and pressure regulator
     
  7. Way Motor Works

    Way Motor Works New Member

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    #6 Way Motor Works, Sep 23, 2010
    The fuel filter won't hurt anything, we sell alot of them.
    Fuel Filter OEM R50/R53/R52 - Way Motor Works

    As for the pressure regulator, that would the first one I've ever seen break on a MINI. I've got some used ones if you end up wanting one.
     
  8. panaphobic

    panaphobic Club Coordinator

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    #7 panaphobic, Sep 26, 2010
    Last edited: Sep 26, 2010
    Well, I'll be ordering a new filter from you sometime this week Way. I don't think this is the root of the problem anymore. I'm thinking it might have something to do with the BPV. I've noticed it's getting worse/more noticeable now. I notice it the most when shifting from 1st to 2nd gear. I don't even have to give it full throttle and you can hear the S/C bog down and then bog a few more times as I'm accelerating. I'm thinking the BPV isn't closing all the way or opening and closing itself. I want to try rerouting the vacuum line from the BPV to after the S/C instead of before. I've seen a write up on how to do it. Seems pretty easy. I checked the pulleys this weekend and didn't notice anything loose or anything in bad shape. I took some more videos. The first one is when I shift from 1st to 2nd gear. The second video is when I'm cruising on the highway in 6th gear and give it gas. Sometimes is bogs down, sometimes it doesn't. You can clearly hear the "bogging" I'm talking about. And now it's being felt in the power of my MINI. I don't hear any other sounds or noises when this happens. The only thing you do hear is the S/C bogging down for a second. It seems very random, and not in any way some sort of pattern to it.

    [ame="http://www.youtube.com/watch?v=C8UWvHC7trI"]Video 1[/ame]

    [ame="http://www.youtube.com/watch?v=_fdxhY0rlR8"]Video 2[/ame]
     
  9. cal330ci

    cal330ci New Member

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    #8 cal330ci, Sep 27, 2010
    Check the By Pass valve... very common this part seizing up and causing this problem
     
  10. panaphobic

    panaphobic Club Coordinator

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    #9 panaphobic, Oct 1, 2010
    How would I go about checking the BPV? Just pull it out and see how well it's working?
     
  11. Dr Obnxs

    Dr Obnxs New Member

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    #10 Dr Obnxs, Oct 1, 2010
    Yeah

    you can do that. Or you can wire tie it closed and drive and see if things get better. You'll drop a bit of gas mileage cause it won't open up (that reduces the drag on the accessory loop by allowing the SC to free-wheel, basically). But it won't be erratic.

    Matt
     
  12. panaphobic

    panaphobic Club Coordinator

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    #11 panaphobic, Oct 2, 2010
    I took a closer look at the tensioner pulley today, and had someone rev it up a little while I was looking at it, sure enough, it was moving a lot. Guess I need to pick another one up.......
     
  13. EvilMiniMe

    EvilMiniMe New Member

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    #12 EvilMiniMe, Feb 21, 2014
    Sorry to bring back to life and ancient thread, but was this ever resolved? I have a similar issue and I think it's the Fuel Filter as I'm at 88K miles on the original. I have an "intake" and a 16% pulley and REALLY started noticing it after the pulley install this week?!
     
  14. minsanity

    minsanity Well-Known Member

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    #14 minsanity, Feb 22, 2014
    Before you go on a spending spree, lemme share you my journey & hope one of those I did would sort it out for you.
    http://www.motoringalliance.com/forums/cooper-s/14839-morning-hard-starts-now-1-3k-rpm-hesitation-yoyo-hiccup.html#axzz2u0pN8Ge6

    Mine was a split in-tank fuel pump to fuel filter hose. This symptom is seldom mentioned but has been popping up lately due to our cars' age. It's no coincidence that when my friend's 03 had the same symptoms, he asked me & went straight to checking the pump hose.....voila, same splitting! Most simply replace the pump assembly. The hose isn't sold separately. If yours is diagnosed similarly, make sure to use a submersible fuel hose like the Gates 30R10.