ABS getting too excited
#1
ABS getting too excited *NEW PROBLEM DETECTED*
Just recently my ABS has been getting overly excited and has decided to act up in normal traffic. I will be slowing down at stop signs and traffic lights and the pedal just goes crazy. Like every time i press the pedal down for more than 3 seconds it starts pumping and going nuts. I have not changed my driving style at all. Is there anything i can do to fix it? Maybe replace a sensor, module, etc. Any help or ideas on what drug got into the ABS system are welcomed...
Last edited by 01fordby4; 11-15-2005 at 03:27 PM. Reason: new problem discovered
#2
That is odd. Are you sure it's the ABS and not something loose in your braking system? I would expect a bad sender that caused something like that to be detected, but maybe not. I'd check your brakes over good, though. A loose shoe in the rear or caliper might be able to make the pedal pump as well if it was grabbing and pushing back on the hydraulic system.
I'm also wondering if a vacuum loss would do it by periodically "hardening" the pedal travel and giving you a feel like it was pulsing. Think I'm "reaching" here though.
If you had a wire that was pulling loose or shorting when decellerating, it would "interrupt" the signal from the sensor and cause the system to think the wheel had stopped rotating.
I'll check the service manual, and Bob or someone else may have more insight.
I'm also wondering if a vacuum loss would do it by periodically "hardening" the pedal travel and giving you a feel like it was pulsing. Think I'm "reaching" here though.
If you had a wire that was pulling loose or shorting when decellerating, it would "interrupt" the signal from the sensor and cause the system to think the wheel had stopped rotating.
I'll check the service manual, and Bob or someone else may have more insight.
#5
#8
#9
#10
Yea the fuse doesnt do anything else to the gauges.
Anyways,
I found out the problem that i had. It has nothing to do with the ABS at all. I think the problem i have discovered is alot more serious...
Today on the way home from school i noticed this noise comming from the rear of my truck so wen i got home i decided to investigate what it is. I pulled off the drivers side rear drum and discovered this ugly situation i gotta deal with:
The pumping of the pedal im gonna assume is the broken piece circling around inside the brakes and getting stuck ontop of itself (if that even makes sense to you guys). I no longer have the pumping problem, or noise problem.
I do however, need to get that piece replaced for the driverside rear axle. Does anybody know what it is called? I think this is gonna cost me mucho dinero (alot of money). Also will i have to get raped at the dealer or is there anywhere else i can go?
*Also i did drive the truck around my neighborhood to see if it is safe w/ the broken brakes. It seemed fine to me, but what do you guys think?
Anyways,
I found out the problem that i had. It has nothing to do with the ABS at all. I think the problem i have discovered is alot more serious...
Today on the way home from school i noticed this noise comming from the rear of my truck so wen i got home i decided to investigate what it is. I pulled off the drivers side rear drum and discovered this ugly situation i gotta deal with:
The pumping of the pedal im gonna assume is the broken piece circling around inside the brakes and getting stuck ontop of itself (if that even makes sense to you guys). I no longer have the pumping problem, or noise problem.
I do however, need to get that piece replaced for the driverside rear axle. Does anybody know what it is called? I think this is gonna cost me mucho dinero (alot of money). Also will i have to get raped at the dealer or is there anywhere else i can go?
*Also i did drive the truck around my neighborhood to see if it is safe w/ the broken brakes. It seemed fine to me, but what do you guys think?
Last edited by 01fordby4; 11-15-2005 at 03:30 PM.
#13
Originally Posted by n3elz
but maybe not. I'd check your brakes over good, though. A loose shoe in the rear or caliper might be able to make the pedal pump as well if it was grabbing and pushing back on the hydraulic system
I've rebuilt my rear brakes twice now -- once to put on my new axle on, and again to fix the mistakes I made!
#14
Originally Posted by 01fordby4
I do however, need to get that piece replaced for the driverside rear axle. Does anybody know what it is called? I think this is gonna cost me mucho dinero (alot of money). Also will i have to get raped at the dealer or is there anywhere else i can go?
*Also i did drive the truck around my neighborhood to see if it is safe w/ the broken brakes. It seemed fine to me, but what do you guys think?
#15
#16
"Special" tools aren't necessary -- but the springs are a pain. MAKE SURE you make a drawing or take a picture of the stuff before you disassemble. There are several easy mistakes you can make that will have you taking your brakes apart AGAIN.
Look online for some information on doing rear brakes -- most are similar in construction and once you understand them, they're not so hard. They are just time consuming, tedious, and generally a pain. I'll be glad to get rear discs!
Look online for some information on doing rear brakes -- most are similar in construction and once you understand them, they're not so hard. They are just time consuming, tedious, and generally a pain. I'll be glad to get rear discs!
#17
#19
If any of the other part are damaged or badly worn you can replace them. A spring kit is nice to have. Sometimes (rarely) one will break when you take it off, or bend or whatever. It's nice to have new ones to put on. The basic rebuild kit comes with springs, clips and what not.
Another kit contains the brake automatic adjuster parts. The auto adjuster kit is about $10 to $15 (one side) and the spring kits are cheap, $5 to $10 generally and usually do both sides. Depends on where you buy. Good to have though.
Another kit contains the brake automatic adjuster parts. The auto adjuster kit is about $10 to $15 (one side) and the spring kits are cheap, $5 to $10 generally and usually do both sides. Depends on where you buy. Good to have though.
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