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Pontiac: Runaway engine keeps on running after shutoff?

  1. #1
    Jim
    Guest

    Runaway engine keeps on running after shutoff?

    Earlier this month, a woman in Colorado survived an incident in which her
    Sunfire wouldn't stop. The clutch didn't work, she couldn't shift, and the
    engine kept running after she turned off the ignition.

    Mechanics who examined the runaway car afterwards said:

    - a transmission failure kept the car locked in overdrive

    - the engine control computer kept the speed at about 70mph

    - turning the ignition switch off didn't stop the engine because "a device
    in the system would keep the engine revolutions up so the engine wouldn't
    stall"

    Question: Does the Sunfire really keep running after you turn the ignition
    off at highway speeds? I've never seen a car do that.

    Full story:

    http://www.denverpost.com/Stories/0,1413,36%257E53%257E1951081,00.html?sear
    ch=filter

  2. #2
    Don
    Guest

    Re: Runaway engine keeps on running after shutoff?

    Jim Land <NOSPAMcom> scribbled:
     

    This thing just smells like fish all over. Why would a manual transmission
    cluch have hydraulic fluid in it? Wouldn't that make the pressure plate
    rather useless? Then the car wouldn't go anywhere.

    Et cetera, et cetera, et cetera.

  3. #3
    Joseph
    Guest

    Re: Runaway engine keeps on running after shutoff?

    Actually, all manual transmission equiped cars since the 80's have hydraulic
    clutch assemblies. The part I still can't figure out is why wasn't she able
    to stop? Try to replicate this story in your car and you'll see that even a
    marginal brake system can overpower the engine and stop the car. Unless she
    also had a complete power booster failure and was a small woman, she should
    have been able to get it stopped. The story even said the e-brake still
    worked...

    "Don P." <com> wrote in message
    news:196.97.132... 



  4. #4
    Neil
    Guest

    Re: Runaway engine keeps on running after shutoff?

    In article <196.97.132>,
    "Don P." <com> wrote:
     

    Yes it does.
     

    Because it is a hydraulically actuated clutch.
    They've been around for a long-long time.
     

    Errr... No. The hydraulics (DOT3 brake fluid actually) aren't
    -literally- on the friction plates.
     

    It's a GM product, anything is possible...

    My guess is that she was talking on a cell phone, painting her
    nails, putting on make-up while drinking a Latte' and shaving her
    legs which left her with zero appendages to control the vehicle
    with.

  5. #5
    Jan
    Guest

    Re: Runaway engine keeps on running after shutoff?

    In article <news.prodigy.com>,
    net says... 
    Well now, in my Sunfire I have talked on my cell phone on occasion while
    driving (don't make it a habit tho), put lipstick on (while waiting at a
    light), talk to my little muttley but never have I tried shaving my legs
    while driving! But I have seen some women that I swear are vacumming
    their cars while driving ^..^
    --
    Cheers!

    Pepper's Mum

  6. #6
    Don
    Guest

    Re: Runaway engine keeps on running after shutoff?

    Neil Nelson <net> scribbled:
     


    D'oh! Forgot about that. Still used to the old cable-driven assemblies.
    The story wasn't worded too clearly

     


    But you can still at least force it out of gear without disengaging the
    clutch (might weaken a syncro or two, and most people probably wouldn't
    think of doing that anyway - "you have to disengage the clutch to do
    anything", we're told)



  7. #7
    Neil
    Guest

    Re: Runaway engine keeps on running after shutoff?

    In article <196.97.132>,
    "Don P." <com> wrote:

    [snip]
     

    According to the story, a pin had come loose from inside the
    transaxle jamming the gears into engagement.

    Personally, I believe it's impossible for all of these supposed
    amlfunctions to occur all at once.

    BTW, neat X-face :-)

  8. #8
    SPS
    Guest

    Re: Runaway engine keeps on running after shutoff?

    Christine II

    "Neil Nelson" <net> wrote in message
    news:news.prodigy.com... 




 

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