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Automatic Brake Systems Suck

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Old 01-02-2013, 03:24 PM
  #21  
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Originally Posted by deerhunter42
Threshold braking is exactly what I was trying to do. Just enough pressure on the brakes to avoid skidding. However, the ABS still took over and pulled me through the light.

I have driven over 2 million miles in my 45 years of doing service work. I never had an accident during all that time. We drove in all kinds of weather in Ohio including the famous blizzard of 78. We had to get to our job site because we were dealing with live poultry that had to be destroyed if we couldn't get our service done.

I know about stopping on wet and slick pavement. I know I could have stopped any vehicle without ABS in this situation. I was careful, I was watching the light, I had slowed down and yes I could have went through on yellow probably okay. But this is the danger with those stupid cameras. They cause more accidents and are just there for revenue in most cases.
They can also change whether you decide to go through the yellow or stop quickly.
As the instructor stated, ABS is designed to enhance braking, and will actually stop you in wet situations faster than non ABS brakes. If you were only lightly touching the brakes, the ABS system will not kick in. It will only kick in when you are braking hard enough to lock the brakes up. So if you were barely touching the brakes and going straight, it wasn't the ABS. ABS prevents skidding, out doesn't cause it. If this it's the case, you likely have a bad caliper, and it's seizing. This happened on my Chevy Beretta.

It will also kick in to keep you straight on the road. Having grown up in Corpus, and have been to Victoria many times. The road likely had alot of oil on it. Did you go straight or did you turn at the intersection? If you were turning on slick roads, the ABS will kick in and the engine will cut throttle simultaneously to keep you from swinging the rear end out.

The other possibility is user error. You just didn't push the brake hard enough to stop worth wet brakes. We haven't had much rain lately, and people forget how tip drove in the rain here. Just kidding on this one of course.

Last edited by sullyman; 01-02-2013 at 03:29 PM.
Old 01-02-2013, 04:05 PM
  #22  
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only time i ever had an issue with braking was in my 1990 Bronco, I went to stop and it was also still under power. I was braking but the accellerator was overpowering the brake. I just shut the ignition off and came to a stop at the stop sign with out smoking the car in front of me. Turns out it was the friggin factory floor mat, back then they did not have the hooks like now to hold them in place. It had inched its way up and slid under the bottom of the gas pedal, so when i let off the gas, it wedged under it! needless to say I pinned that darned thing down to the carpet after that!
Old 01-02-2013, 04:22 PM
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Having accidentally done this myself a few times and scared myself silly ( though in a small sports car with pedals much closer together that I heel/toe'ed a lot)), are you sure you didn't accidentally have the corner/side of your foot on the gas pedal? Sounds like something was giving the truck gas.
Old 01-02-2013, 04:23 PM
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Originally Posted by deerhunter42
I might add I went through that stop light at around 5mph, but it wouldn't stop. It was under power and the wheels pulled me through.
Any chance there was an issue with cruise control? I realize that cruise is SUPPOSED to shut off when brakes are applied just can't understand your repeated statement about being "pulled" through "under power".
Old 01-02-2013, 04:27 PM
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Originally Posted by RightYouAreKen
Having accidentally done this myself a few times and scared myself silly ( though in a small sports car with pedals much closer together that I heel/toe'ed a lot)), are you sure you didn't accidentally have the corner/side of your foot on the gas pedal? Sounds like something was giving the truck gas.
^^^^^^
This...
Old 01-02-2013, 05:33 PM
  #26  
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As already mentioned ABS stands for Anti Lock-Brake System not Automatic Brake System.

The way it works is there are speed sensors monitoring each wheel. If the sensor detects if one or more wheels have stopped and the truck is still moving it will engage the ABS which actually pumps the brakes at a vary rapid pace.

Now the stability control system will use the same sensors and ABS relays.
if one or more tires did not lock up maybe this system detected something that caused it to kick in and not let you stop as fast.

Either way I would have it checked out.
Old 01-02-2013, 07:06 PM
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Originally Posted by ACTIV68-69
Any chance there was an issue with cruise control? I realize that cruise is SUPPOSED to shut off when brakes are applied just can't understand your repeated statement about being "pulled" through "under power".
You could get this if you were using both feet to drive as well. My Dad does this, and I know a few other people that do as well. I just picture my Dad driving through a storefront someday.

Hence why I previously asked if you brake with your left foot. Since you stated this has happened before, maybe you are not realizing you still have your right foot on the accelerator.
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Old 01-02-2013, 08:09 PM
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Originally Posted by Shol'va
You could get this if you were using both feet to drive as well. My Dad does this, and I know a few other people that do as well. I just picture my Dad driving through a storefront someday.

Hence why I previously asked if you brake with your left foot. Since you stated this has happened before, maybe you are not realizing you still have your right foot on the accelerator.

Two foot drivers are my pet peeve...
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Old 01-02-2013, 10:28 PM
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Not sure if anyone mentioned this yet but at just about every stoplight and stop sign on a paved road there is an oil slick from leaking cars. Takes a bit of rain before its diluted and its slippery as hell when it gets wet.
I went across a hwy once and on the opposite road, someone had leaked a buttload of oil out of the back of their truck. It was like driving on black ice. I had to call the police and they came and sanded the road. This was in the summer time btw.
I don't know about the " powering" feeling though. Doesn't seem right.
Old 01-03-2013, 11:37 AM
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Tried to read most of this, but driving with both feet should only be done for 'racing' situations, which few of us will ever need.

Next is when was the last time you actually used the brakes in the raining condition prior to stopping? Something definitely seems off if you were only at 5 mph, but with that said I've had ABS vehicles that when wet or below freezing and not used for a bit would act up a bit. I learned to 'warm/dry' the brakes a bit, just drive with the brakes on for a stretch, like maybe like 50' and then try the brakes. If they act up then warm/dry them up some more. Granted this was on older vehicles out of warranty.
Also as someone mentioned, maybe you just drove thru a slick oil laden intersection or possibly accidentally hit the the gas and the brake at the same time.
If it were me I'd be testing this trying to re-create it as that is far too dangerous to not figure out right away.


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