Sudden and uncontrolled acceleration
#41
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StypeRowner (01-20-2016)
#42
Join Date: Dec 2013
Location: Mooresville, NC (Race City USA), home of most NASCAR teams.
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I too have noticed the propensity to accidentally step on the accelerator pedal while engaging the brake pedal, and I only wear a 9 1/2 shoe size (U.S.), which is only average.
I think they should have positioned the brake pedal a bit higher relative to the accelerator pedal, and also spaced them a bit further apart. I too have to make a concerted effort to lift my foot higher off the accelerator and then onto the brake further away to avoid accidentally engaging both simultaneously.
I think they should have positioned the brake pedal a bit higher relative to the accelerator pedal, and also spaced them a bit further apart. I too have to make a concerted effort to lift my foot higher off the accelerator and then onto the brake further away to avoid accidentally engaging both simultaneously.
Last edited by johndahlheimer; 01-19-2016 at 06:47 PM.
#43
If you do manage (with brakes fully applied) to get wheel spin or the like, you've faulty brakes that need fixing.
No matter what the engine tries to do the brakes should always stop the car. Worst case the engine revs itself to destruction but still the brakes should stop the car. Faulty brakes if not.
No matter what the engine tries to do the brakes should always stop the car. Worst case the engine revs itself to destruction but still the brakes should stop the car. Faulty brakes if not.
braking force if the brakes are not fully applied. So long as the fronts
are holding you are fine.
Sometimes this is done deliberately. It's called a brake stand.
Well known to previous generations of street racers in RWD cars.
Some even have devices called line locks installed on the shift lever
to make the process easier to execute. It's a solenoid valve that locks
the front hydraulic circuit after applying the brakes hard. Apply brakes
hard, engage line lock, release brakes, spin rear wheels freely against
unapplied rear brakes while locked front brakes hold the car. The result
is clouds of smoke and warm tires. It can be enhanced by pouring bleach
on the tires and pavement. Some cars have bleach boxes installed. They
squirt bleach on the tires and pavement at the push of a button.
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amcdonal86 (01-30-2016)
#44
I did say fully applied....... (interesting stuff, though).
BTW - anyone who fancies revving hard, stationary but in gear, with brakes applied - don't do it long. You'll heat the gearbox fluid more and more. I'm not by any means sure it can get rid of the heat if you keep it up.
(Someone will describe stall test...)
BTW - anyone who fancies revving hard, stationary but in gear, with brakes applied - don't do it long. You'll heat the gearbox fluid more and more. I'm not by any means sure it can get rid of the heat if you keep it up.
(Someone will describe stall test...)
Last edited by JagV8; 01-20-2016 at 05:20 AM.
#45
#46
#47
#48
I think the part that makes me think perhaps the problem IS indeed the car is you said you restarted the car and it revved to 5000 RPMs (I'm going off of memory here). If your foot was on the gas instead of the brake, the car wouldn't have started as you must have your foot on the brake to start the car.
#49
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Location: Perth Ontario Canada
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#50
In any case, the actual poster said his pedal stayed down. That's unique but if true would presumably be the cause of high revs. Still, brakes stop the car no matter what.
Jammed by a mat would be the most likely and would explain why the dealer could not reproduce the fault and why it's never been reported since.
Jammed by a mat would be the most likely and would explain why the dealer could not reproduce the fault and why it's never been reported since.
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