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Ford Focus: ford focus unexpected acceleration

  1. #1
    malcolmm
    Guest

    ford focus unexpected acceleration

    Hello,

    I had a frightening experiance tonight. My 2000 Wagon (US) would not stop.
    When I lifted my foot off the accelerator the car just kept on going at
    the same speed. When I slowed it down using my breaks, the engine started
    accelerating higher and higher. I had to shift it into neutral because my
    breaks (which I had done yesterday) could not hold me back and the revs
    kepr getting higher and higher.

    Anybody else had or heard of the same problem? Can't trust it to drive now
    thank god for my motorbike (Honda) had it 20 years and no problems <smile>

    Would appreciate you assistance.

    Mogs

  2. #2
    Mark
    Guest

    Re: ford focus unexpected acceleration

    malcolmm wrote:
     

    Your BRAKES should be looked at by a competent mechanic. If you were
    standing on the BRAKE pedal and the car accelerated, there is something
    very wrong with the BRAKE system.

    As far as the unintended acceleration is concerned, I'd be looking very
    closely at the cruise control and throttle cables and the throttle body
    to make sure nothing's broken or damaged, which could certainly cause
    the throttle to stick open.

    Have you or anyone else done any work under the hood recently?

  3. #3
    Stephen
    Guest

    Re: ford focus unexpected acceleration


    "Mark Olson" <invalid> wrote in message
    news:supernews.com... 

    Any properly operating braking system will easily overpower the motor of
    most cars. You should be able to drive with a wide open throttle, even keep
    one foot on the gas pedal and still bring your car to a stop with the brakes
    without a considerable increase in braking distance.

    As he said, your brakes are suspect if you couldn't slow it down.



  4. #4
    Basic
    Guest

    Re: ford focus unexpected acceleration

    This all sounds familiar to me. I seem to recall reading this very same post
    before. A bit of Trolling perhaps?

    Rob

    ------------------------------

    "malcolmm" wrote ...
     



  5. #5
    Dave
    Guest

    Re: ford focus unexpected acceleration


    "Basic Wedge" <ca> wrote in message
    news:6joGe.64980$.. 

    Don't know about this particular thread, but in general these periodic
    unintended acceleration posts that pop up on various newsgroups from time to
    time do seem to be a Trolling activity - a very special kind of Trolling.
    Trolling for big bucks, as in class-action lawsuits. Didn't work in the 80s
    with the Audi Victims Network fraud, won't work now either.

    It is possible that this "malcolmm" guy is sincere, in which case he was
    probably pressing the accelerator rather than the brakes by mistake. The
    less likely situation is that he does have both a throttle problem and
    almost useless brakes, but that's a pretty unusual combination.



  6. #6
    Neill
    Guest

    Re: ford focus unexpected acceleration

    malcolmm <net> wrote:
     

    Yes. Brief engine racing, but it's only happened to me with the clutch
    in and no load on the engine.


  7. #7
    malcolmm
    Guest

    Re: ford focus unexpected acceleration

    "Dave Gower" <ca> wrote in
    news:ca:
     
    "Troll". Have been lurking in this group for the last year and when I
    have a problem and post it's taken as...

    No my foot was not on the brake. Going down the highway at 110 kms
    with no feet on the pedals I think there is a problem and when I
    came to a stop the engine raced because it was forced to gear down
    (I put it in nutral) and the revs went up to the sky!

    And my brakes... from the $510. bill I just had them done.

    So guys I am not a Troll but just a person looking for advice not
    redicule.

    Malc

     


  8. #8
    Dave
    Guest

    Re: ford focus unexpected acceleration


    "malcolmm" <net> wrote
     

    OK, but reread your first post, and especially the subject title. It looked
    like you were saying that the car sped up in spite of you applying the
    brakes. Now that you have clarified it, this is a simple case of a stuck
    throttle, which is something very different from "unexpected acceleration",
    to quote you precisely.

    Many people are unaware of the long and nasty history behind the issue of
    "unintended acceleration" or the fact that there are nutball anti-corporate
    activists and sleazy contingency lawyers constantly looking to fabricate a
    case. That's why precision is important in discussing any such cases.



  9. #9
    Michael
    Guest

    Re: ford focus unexpected acceleration

    net (Neill Massello) wrote in
    news:1h0gfxd.kr0i0q1uahlkwN%net:
     

    I too have had that experience. US model 2005 ZX3 with an automatic
    transmission and a 2 liter engine. The vehicle was appoximately two
    months old with 3.5k miles.

    While driving on a two lane road in southern Michigan, (early May, cool
    evening, light mist), the dash lights and all gauges "flashed" a couple of
    times. On the second "flash" of the dash lights I noted all the gauges
    going to the max as well.

    The Flashing dash lights were not on and off but rather regular
    illumination and VERY bright flashes of appoximately a second duration. In
    my experience as an engineer I have wittnessed the same during a high
    voltage spike. Possibly something in the alt/regulator?

    Anyway, I lifted off of the go pedal while the damn thing floored itself.
    After about 5 seconds of bumping the gas pedal and then the brake pedal, I
    had the presense of mind to simply turn the key off and I then braked to
    the side of the road. I turned the key back on, the gauges and all seemed
    to zero, except for the eng temp which read actual temp. There was no
    repeat of the flashing dash lights and gauges slewing around. It
    restarted and ran normally except for the check engine light which was now
    on. The ONLY thing that could have taken the gas pedal to the floor was
    the cruise control activating to full pull on the throttle body/linkage.

    I carefully drove home and in the am took the car back to the dealer where
    I explained the problem. I used a loaner car for the three days the
    dealer took to recieve and replace the "transmission position sending
    unit". That was the only fault the computer returned. I have over 75k
    miles on the car now and have not had a return of the same problem.

    I have had to replace both rear wheel bearings and three sets of tires in
    75k miles. The factory settings on the rear are stupid and guarentee that
    the tires will wear out in 20-25k miles. I have had mine set to 0 degree
    toe-in with me sitting in the car and the feathering/wear has been reduced
    to a more normal pattern. Current tires have over 30k miles and still
    have 50-60% tread left. The excessive toe the factory quotes is probably
    the cause of the wheel bearing failure as well.

    Another issue with the factory toe-in is VERY dangerous. With such a
    light car, while driving in weather, it is possible to unload one side of
    the car or the other. That is, get one tire to plane on water or slush
    and the other side of the car stays planted. When that happens, the tire
    on the loaded side of the car, (the side NOT planing) will push against
    straight travel and can (did in my case) cause a spin. At the factory
    setting (as recieved 2.5 degrees toe-in on both sides!) it shot the rear
    end to the right when the right tire unloaded on slush. Compounding that
    problem is that on most roads, the big semi's typically have left slight
    depressions in the tarmac that collect a bit more water than the crowns.
    A small car like the Focus does'nt ride equally in both depressions so the
    likelyhood of having equal ammounts of water/slush under both sides of the
    car is less than that of an bigger car/truck and increases the likelyhood
    of a spin because of the above. Add to that the tires wearing very
    rapidly (worn tires plane much more easily than fresh tires) you have a
    great recipe for disaster.

    Other than the above I am extreemly happy with this vehicle. A bonus for
    us BIG guys, 6ft 3in tall is that I actually fit in the damn thing and my
    brother, same size can travel with me. Loads of interior room, (Head and
    Foot) in the front seat and with the two door entry/egress is not the
    twist, bend, lurch activity typical of most small cars-big people matings.
    Don't even talk about the rear seats.... My five year old grandson
    does'nt fit now, I can't wait until he is ten. lol.

  10. #10
    Michael
    Guest

    Re: ford focus unexpected acceleration

    "Michael Casey" <com> wrote in message
    news:16.185.247... 

    The most common cause of runaway acceleration in modern cars is a bad
    throttle position sensor. Volvo had several years of bad TPSs, with nearly
    all failing around the 100K mile mark. Eventually they warranteed all the
    replacements.

    In your case, Michael, I agree about basic electrical problems. Maybe a bad
    alternator/regulator, but I would also cast a suspicious eye on the battery
    (intermittent open, which often shows up as hesitation to crank on some
    mornings) and on the engine ground. Dunno how the Focus engine ground is
    done, but it can be checked with a voltmeter between the engine and chassis
    with the engine running. Anything over 0.1V is cause for investigation. Even
    if the voltage is low the ground can be loose. All of those can occur in a
    fairly new car.

    Mike




 

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