Sometimes when I stop my truck brakes feel as if they let go for a split second and grab again. Whenever I get to about 2-3 mph. I get very little feedback in the brake pedal. It's when I'm under a light to moderate brake pressure and it doesn't happen all the time. It feels as if it's the front end doing it. My ABS light has never came on nor does the ABS make any noise when it happens. I do have a Cognito leveling kit but it's been on for about a year and half and this brake deal just started last week. The roads are not wet when it happens. Currently I have my stock 245's on. My truck is has a manual trans so it's not the tranny. Any help would greatly be appreciated. Truck 26,000 miles on it.

sounds like you have a brake pulsation slightly mine did the same thing i just turned the front rotors and now its gone.

ABS wheel speed, sensor is the culprit usually if you have a pulsation at slow braking. GM had several recalls on these on the 1500 and 2500 trucks. Its about a $100.00 part that you will have to remove the caliper and pull the old unit out. they are known for cracking at the neck area or rusting and getting bad wheel speed readings . Thus causing the anti lock brakes to get goofy.

Thanks for the info, I'll pull the front tires and check it out.

I have not checked the sensor out yet, but you guys say a pulsation feeling. It actually feels like the brakes let go and the truck freewheels unless I apply a little more pressure. I don't loose complete braking. It kinda seems like the front or rear brakes let go. It's enough for the passenger to feel it. Thanks C.A.P. I still am going to check sensor.

Definitely a wheel speed sensor. A good tech with an uplevel scanner can find it right away. The only way you'll find it is if the wheel bearing is going bad, giving the wheel speed sensor a bad signal. In that case the wheel will wobble when jacked off the ground. The sensor is mounted with a single bolt through the attached plastic "flag." Corrosion can cause the sensor to lift from it's machined mounting surface causing erratic readings, also. Definitely get it fixed. You don't need any problems that would lengthen your stopping distances.

ive read on another post that you can take the abs fuse out to stop this. is this safe to do???

ive read on another post that you can take the abs fuse out to stop this. is this safe to do???

There is a two pin plug with one black and one red wire under the module for the ABS on the engine side of the electric motor under the module. Unplugging this will totally disable the ABS, but I not sure what type of liability you would have in the event of an accident. Without the ABS, your truck will leave very long black, non-ABS skid marks in the event of a panic stop. I strongly advise unplugging the connector for diagnosis ONLY. It will allow you to test the hydraulic braking system performance.

If I unplug this, will any codes show up. Such as an ABS light that won't go off, even after it's plugged back in? I just don't want to add to my troubles.

Easy fix...but trucks in north east may qualify for a recall. Corrosion on hub lifts sensor ever so slightly were it sends mixed signals to computer...computer will see one wheel stuck at 3mph and other stopping then engages ABS.

If not, pull caliper and rotor to gain access to sensor. Clean area around sensor (blow it with air). Undo bolt (allen head if I remember correctly). CAREFULLY twist then pry upward evenly around the sensor to unseat the o-ring (s?). Stick something clean (disposable earplug works great) in the hole so you dont contaminate. Clean mounting area with emery cloth or something. Then lube with antiseeze to prevent further corrosion. Thats it...works nearly every time...cant even count how many I or friends have done.

Good luck.

I ran around in my '99 1500 for many months with ABS fuse in engine compartment pulled. ABS light stays on...maybe e-brake light too (cant rememeber). System functions as a conventional system. I dont remember haveing any problems when I reinstalled fuse...

Thanks for all your help

I pulled the ABS sensors out and there was a good bit of rust under them. I clean them as you describe, used anti-sieze, put it all back together and now my ABS light stays on. It didn't come on before. I drove the truck for only a couple miles to see if the brakes were okay, they seemed fine. Wether or not the "skipping" feeling is gone I'm not sure yet. I also disconnected the batteries to try to reset the system. I just washed my truck and now its raining and supposed to the next 4 days, so it's gonna stay in the garage for now. That's why I was only able to drive it a short distance since I worked on it.

If I unplug this, will any codes show up. Such as an ABS light that won't go off, even after it's plugged back in? I just don't want to add to my troubles.

With the fuse pulled, the ABS light stays on. If it bothers you, just pull the bulb....
Best is to just clean the sensors/check for breaks in the wires and try to fix the problem the right way.
Good luck!

I didn't pull the fuse out. It's still there. I only pulled the font ABS sensors out of the hubs to clean the rust under them, and put everything back together. Maybe I messed up one of the sensors. I tried to be gentle with them. When I pulled the sensors I could the copper wires wrapped around it, is this normal?

When I pulled the sensors I could the copper wires wrapped around it, is this normal?

Absolutely not! The sensor is a black cylindrical barrel with a mounting flag, and the only thing that isn't black is the nose. The nose is silver in color with a rectangular insert. If you saw copper, not only is that sensor bad, but the rest of the sensor body must be removed before installing a new sensor. The reason you have an ABS lamp now is that sensor is sending NO information, where before it was sending FALSE information.

Talk to someone that has changed their front bearing assembly. New assemblies come with the ABS sensor. Maybe someone close to you can donate one to try out.

Thanks for the info. I did notice the plastic down the sides of the hole, but I didn't realize it was part of the sensor body. I thought it might have been a sleeve of some sort. I guess I wasn't as gentle as I thought when I twisted them. It must have been rusted down inside the hub a little as well. Any idea where I might find the part #'s without dealing with a dealership.

Thats a good idea since they're problably over $100 a side.