Anti-Lock Brake disable?
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Senior User
Joined: Jan 2005
Posts: 416
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From: Pittsburgh, PA
Anti-Lock Brake disable?
Has anyone disabled the anti-lock brakes on their rucks? I know on my old truck, it was as simple as pulling the pllug off the master cylinder. Can it be done on our trucks? Does it throw a code?
I hate anti-lock brakes, especially on trucks. I would much rather take control of the braking.
ANy help would be great!
Thx
I hate anti-lock brakes, especially on trucks. I would much rather take control of the braking.
ANy help would be great!
Thx
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
yes it will throw a code. the system is not made to be used any other way. in normal driving you almost never use the ABS so why worry?lets say you did disable them and they locked up would you be incontrol? i think not.explain that to the insurance company when you rear end someone.
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Senior User
Joined: Jan 2005
Posts: 416
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From: Pittsburgh, PA
I grew up driving cars w/o them, as I am sure most people on here have also. I can honestly say that ABS is one invention I could do w/o. I do think I could be in control. Also, how in the world would the insurance company know that the ABS was unhooked? When was the last time you saw an inurance agent start looking under the hood. Not to mention that my step dad is my agent.
I agree that most times they are fine. I hate them on wet brick raods (we have a lot of them here in Pittsburgh), wet roads with leaves, or even when your back end starts bouncing around they engage. Ill take locking up the wheels for a minute than a dead pedal that doesn't know what he situation is you are trying to control. Computers are not always better than human judgement.
I agree that most times they are fine. I hate them on wet brick raods (we have a lot of them here in Pittsburgh), wet roads with leaves, or even when your back end starts bouncing around they engage. Ill take locking up the wheels for a minute than a dead pedal that doesn't know what he situation is you are trying to control. Computers are not always better than human judgement.
Last edited by Pittsburgh-05HD; Feb 8, 2006 at 07:58 PM.
Senior User
Joined: Oct 2003
Posts: 268
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From: New Hampshire
i just took my fues out. the light glows all the time and i just toss it in when its inspection time. i also hate abs, mainly because my abs was screwing up all the time and would cause the pedal to randomly go hard.
Junior User
Joined: Dec 2005
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if you take off the grounding wire to the abs unit under the hood located by the drivers side headlight it also disables the speedometer and the mileage goes out too. someone said it was bad to disconnect the abs bc the computer reads the wheels sensors or something like that and it screws up tranny shifts, and makes your computer do funny stuff can anyone shed some light on that?
Senior User
Joined: May 2003
Posts: 481
Likes: 0
From: St. Petersburg, FL
Originally Posted by fastcarz3
if you take off the grounding wire to the abs unit under the hood located by the drivers side headlight it also disables the speedometer and the mileage goes out too. someone said it was bad to disconnect the abs bc the computer reads the wheels sensors or something like that and it screws up tranny shifts, and makes your computer do funny stuff can anyone shed some light on that?
), and doesn't record mileage, and will even knock out the abs because it too needs to know tire rotation speed(to "feel" a lock-up). This will also really screw up your tranny shifting. That's NOT the way you want to disable the abs. I still don't know why anyone would want to disable it though. Must be that they can think and respond to inputs 20 times a second.
If you knock out your abs, please don't follow behind me.
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Fleet Mechanic
Joined: Nov 2001
Posts: 1,553
Likes: 0
From: Corpus Christi, TX
All you need is a piece of electrical tape and your fingers.
As said before, remove the ABS fuse, and put piece of tape over light on gauge cluster.
I too find ABS bothersome at times, for example slamming on the brakes to stop short so I won't hit a piece of beach debris only to roll towards it while the pedal vibrates. I'd much rather have positive lockup of the brakes to dig into the sand and actually stop me!!
As said before, remove the ABS fuse, and put piece of tape over light on gauge cluster.
I too find ABS bothersome at times, for example slamming on the brakes to stop short so I won't hit a piece of beach debris only to roll towards it while the pedal vibrates. I'd much rather have positive lockup of the brakes to dig into the sand and actually stop me!!
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Cargo Master
Joined: Nov 2004
Posts: 2,858
Likes: 3
From: Friendswood, Texas
Originally Posted by Munkey
All you need is a piece of electrical tape and your fingers.
As said before, remove the ABS fuse, and put piece of tape over light on gauge cluster.
As said before, remove the ABS fuse, and put piece of tape over light on gauge cluster.
Junior User
Joined: Feb 2004
Posts: 61
Likes: 0
From: Michigan
Has anyone of the ABS haters done an ice or slippery weather stop test against an abs truck with your ABS disabled? I really want to see you pump at 20 0r 30 times a second, pretty funny sight...lol. They work the best if you hold them to the floor in slippery situations, are you pumping the abs brakes? They wont work right then either. I have the rear abs but wish I had the 4 wheel. My wifes SD 7.3 has the 4 wheel and it stops way faster than say my cherokee without them and half the weight. You could also close one eye for the abs light being on...
Senior User
Joined: Oct 2003
Posts: 268
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From: New Hampshire
Originally Posted by F250Wheels
If you guys are feeling your antilock all the time, then your not driving like your in A truck. Unless I hit the pedle hard to test the anti lock I never feel it.
if you dont know how to drive in the snow they you shouldnt be driving in it.
dose anyone know why abs was invented or why power brakes were invented.... its all because of women, they wernt strong enouph to use the regular brakes when they started driving way back when and they dont know how to react when they start sliding so they just hold the pedal to the floor.
Senior User
Joined: May 2003
Posts: 481
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From: St. Petersburg, FL
Originally Posted by BigRyanKP
dose anyone know why abs was invented or why power brakes were invented.... its all because of women, they wernt strong enouph to use the regular brakes when they started driving way back when and they dont know how to react when they start sliding so they just hold the pedal to the floor.
Anti-Lock brakes were invented to effectively lower stopping distances in less-than-perfect road conditions. As we all should know, static coefficient of friction is higher than kinetic friction. As this applies to a system comprised of a tire and roadway, static friction is in effect when the tire is turning, with zero delta velocity relative to the road(gripping, not sliding). When the tire locks up, you now have a kinetic situation, which instantly reduced your fricitonal force, which in turn reduced the rate of deceleration, thus increasing the distance required to stop. It WILL take you longer to stop with the ABS disabled, and that's an undisputable fact!
Laughing Gas
Joined: Dec 2005
Posts: 906
Likes: 107
From: Seattle area
On paved or even gravel roads, there is no way you can stop faster by disabling ABS. You put your safety (not my concern) and the safety of the kids playing soccer in their front yard and chasing a ball into the street (all my concern) at risk by having ABS disabled on the street. Don't be a negligent JA and put others at higher risk because you think you can react faster than the computer. It is no contest -- ABS WILL stop faster than non-ABS on-road.
That being said, when offroading, there are situations where I would like an ABS override switch. Descending a steep, loose hill, the ABS can actually prevent you from stopping as it senses different wheel speeds and lessens the brake pressure. You want to be able to lock up the tires and build the dirt wedge under them to slow down. Same on the deep sand as posted above. (NOT on sandy streets or normal dirt roads -- ABS will stop faster.)
So, if pulling the fuse works, then wire a switch (and a fuse) into the fuse socket and when you are OFFROAD ONLY, flip the switch to the open position, and ABS will be disabled. I would recommend wiring this with a relay that will shine a bright red annoying light when disabled to remind you to re-enable ABS when you leave the trail, and a covered rocker switch to prevent accidental de-activation.
Steve
That being said, when offroading, there are situations where I would like an ABS override switch. Descending a steep, loose hill, the ABS can actually prevent you from stopping as it senses different wheel speeds and lessens the brake pressure. You want to be able to lock up the tires and build the dirt wedge under them to slow down. Same on the deep sand as posted above. (NOT on sandy streets or normal dirt roads -- ABS will stop faster.)
So, if pulling the fuse works, then wire a switch (and a fuse) into the fuse socket and when you are OFFROAD ONLY, flip the switch to the open position, and ABS will be disabled. I would recommend wiring this with a relay that will shine a bright red annoying light when disabled to remind you to re-enable ABS when you leave the trail, and a covered rocker switch to prevent accidental de-activation.
Steve
Elder User
Joined: Jun 2001
Posts: 775
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From: Northern Va
Originally Posted by Baja Daze
With all due reapect, that is a very ignorant statement regarding ABS - power brakes, maybe, but not abs.
Anti-Lock brakes were invented to effectively lower stopping distances in less-than-perfect road conditions. As we all should know, static coefficient of friction is higher than kinetic friction. As this applies to a system comprised of a tire and roadway, static friction is in effect when the tire is turning, with zero delta velocity relative to the road(gripping, not sliding). When the tire locks up, you now have a kinetic situation, which instantly reduced your fricitonal force, which in turn reduced the rate of deceleration, thus increasing the distance required to stop. It WILL take you longer to stop with the ABS disabled, and that's an undisputable fact!
Anti-Lock brakes were invented to effectively lower stopping distances in less-than-perfect road conditions. As we all should know, static coefficient of friction is higher than kinetic friction. As this applies to a system comprised of a tire and roadway, static friction is in effect when the tire is turning, with zero delta velocity relative to the road(gripping, not sliding). When the tire locks up, you now have a kinetic situation, which instantly reduced your fricitonal force, which in turn reduced the rate of deceleration, thus increasing the distance required to stop. It WILL take you longer to stop with the ABS disabled, and that's an undisputable fact!
I don’t know a lot about physics, but I know what matters
Having worked in the car service business for years, I came to the conclusion that people associate max stopping power with the squeal of tires. "If the tires aren’t singing, I am not stopping as fast as I can." is the general thought. It’s a mental thing. Test after test has been done proving under most all situations, ABS stops a vehicle better than the same vehicle without ABS. The one exception is a professional race car driver MAY be able to beat ABS but only because they practice this task many, many times, in the same car, when racing.
I will not dispute anyone’s opinion as far as whether or not they “like” ABS or not. If you don’t, you don’t. But to say you can do a better job than ABS, I will dispute that, unless your last name is Earnhardt or Gordon…
Posting Guru
Joined: Jul 2005
Posts: 1,617
Likes: 4
From: Denver, Co
I'd have to agree with Baja. ABS was developed because people in general, not just women, instinctually slam on the brakes when confronted with a situation requiring an emergency stop.
I learned how to drive in a '65 Ford F100 in a northern tier state (Wyoming, to be exact), and I learned at an early age that the only way to get that thing stopped during the winter was to pump the brakes.
Now, maybe one or two years later , I have an '05 F250 CC. If I am firm on the brakes, I can stop in somewhere around half the distance that I could have (under the same winter conditions where traction is sketchy) that I could have with that old Ford. However, if I try to pump the brakes, my stopping distance goes up by a good distance. And that is in a truck that easily out-weighs its older counterpart.
In my opinion, defeating the ABS system because of a belief that you as a person, not a computer, have a better ability to stop the vehicle is akin to defeating the air bag system because you believe you can stiff-arm the steering wheel to keep from "kissing" the steering wheel and/or windshield in the event of an accident.
I learned how to drive in a '65 Ford F100 in a northern tier state (Wyoming, to be exact), and I learned at an early age that the only way to get that thing stopped during the winter was to pump the brakes.
Now, maybe one or two years later
, I have an '05 F250 CC. If I am firm on the brakes, I can stop in somewhere around half the distance that I could have (under the same winter conditions where traction is sketchy) that I could have with that old Ford. However, if I try to pump the brakes, my stopping distance goes up by a good distance. And that is in a truck that easily out-weighs its older counterpart.In my opinion, defeating the ABS system because of a belief that you as a person, not a computer, have a better ability to stop the vehicle is akin to defeating the air bag system because you believe you can stiff-arm the steering wheel to keep from "kissing" the steering wheel and/or windshield in the event of an accident.