2010 brake failure - unintended acceleration

[Flipper_1938]

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[Zaphod]

Originally Posted by Flipper_1938

My 2000 Ford SuperDuty does have ABS. ...but it takes actually sliding the tires to activate ABS. I can deal with that.

On the truck, it feels like a safety feature, not a safety hazard.

That's funny, I used to have a 98 RAM 1500 and the ABS on that thing was downright scary. It felt like it waited to long and then it was almost too late and I just wanted it out of the way. But that could have just been a 1st impression, I wasn't used to driving that sled yet.

I guess it's what you're used to really, I always felt like a had a lot more control in the Wrangler without ABS than the truck with, but then 4WD compression braking can be impressive, especially 4 low on really bad ice. Every move is proactive because it has to be.

ABS on the Yaris is alright. It's happened twice and I cringe when I feel it because I know I made a mistake ... kind of like letting the clutch out too early and grinding a gear. I've stayed in it just to see and it actually does seem to stop just pretty quick. The 1st time I just let off and found the sweet spot outside of the ABS and the 2nd time I just mashed the pedal and rode it out just to see and it really seemed to stop just as fast.

By the way, is that flatbead in your avatar 49 Chevy?

[Flipper_1938]

!

[Zaphod]

Originally Posted by Flipper_1938

It is a 48 (on a 1991 S-10 chassis).

At least I wasn't too far off

That's a nice looking truck, I've always liked the body style on those trucks, the simplicity and clean lines.

One of these days I'll push some pictures of my 94 sporty and 53 F250 up to the "garage".

[xnamerxx]

Originally Posted by Flipper_1938

My 2000 Ford SuperDuty does have ABS. ...but it takes actually sliding the tires to activate ABS. I can deal with that.

On the truck, it feels like a safety feature, not a safety hazard. When ABS is activated, the Ford still feels like you have 80% braking capability. This Yaris, it feels like you lose 80% of the braking capability.

That statement to me screams you don't understand vehicle dynamic with weight.

Your 2000 superduty probably weighs somewhere in the nature of ~5000 lbs with wider tires 250+/55-16+ with much larger brakes because of the extra girth of the vehicle.
The yaris is a light car its weight is probably half or less then the total weight of the truck that you drive. My yaris doesn't have abs because I chose not to buy one with ABS. But being a light car the way it behaves when you stomp on the brake pedal is to lock up the brakes like any car would but as it doesn't have the weight forcing the wheels to keep moving the brakes will lock rather easily. With the brakes locking rather easily the ABS will do its job and keep that from happening but it feels like the car isn't slowing down when it is.

I have a Mustang that has many miles of track time on it and I can tell you the ABS is very easy to bypass if you know how to modulate the brakes correctly. It took owning several cars without ABS to learn how to do this correctly because with ABS its a very hard skill to learn.
I guess its just me but I liked owning cars with nothing to save me, Ive never learned more about my cars then when I started to lose control or lost complete control of them.

Sometimes its knowing where the edge is that will keep you from getting close to it.

[Flipper_1938]

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[xnamerxx]

Have you ever heard of something called ABS ice mode?

The ABS is working exactly as intended, when your applying the brakes it detects that the brakes are locking tires up and try's to compensate by getting the car to slow down. If there were no abs there may have been a accident from the ice you may or may not have seen. Tires play a huge roll in how a car feels on ice.
With abs pumping the pedal was the wrong thing to do. It has a motor and is already doing that for you by you pumping the pedal your giving the computer more instructions than it needs to slow the car down thus making its job more difficult.

http://www.ehow.com/about_6162289_do...ice-snow_.html


Its not specific to any manufacture but its the abs trying to save you when your stuck in ice and it sounds exactly like that's what your experiencing. If you choose to drive in the snow and let yourself get into limit space situations you really need to evaluate the way you drive as a accident is inevitable.

I may not have your 25 years of experience but I do have 9 years and over 300k miles behind my belt and to this day I have only been in 1 accident that was due to my stupidity.

I should rephrase the word stomped I should say abruptly pressed the brakes. The more rapid you make your inputs on the car the less actual grip you have from the tires. Its like shooting a rifle if you want to get the most from it you need to be smooth. The smoother your inputs are ie not quick and jerky the better the car will react.
The smoother you can make your inputs the less this will affect you.

"...any transfer of load from one tire of a pair to the other reduces the total tractive capacity of the pair."
-Carroll Smith

[Flipper_1938]

Originally Posted by PK198105

Fuck You! I Quit.

Have fun driving your ABS equiped cars in the snow!

[Kal-El]

^^