Just pikd up a 2000 blazer 124k i test drove it and didnt notice anything wrong, wife starts driving it and she tells me somethin wrong w brakes so i drive it and when you come up to a stop feels like it has traction control or somethin u feel pedal pulsate 2 maybe 3 times then stops only happens when u are almost stopped. Havent had achance to take the wheels off yet no abs light on either just wonderin if anybodys had this happen. This is my third blazer and never seen this bfore. Thanks

 

i had something similar happen to me...its most likely your abs sensors on the wheel hub. check them at the wheel and at the harness connection on frame.
i am guessing you have 4wheel though.....like me.

 

Yup its 4 wheel drive would the sensors throw the ABS light on or not the sensor is behind the disk right gonna take wheels off tomrow got home 2 late 2nite thanks

 

x2 on abs sensors. Check the wires leading to the abs sensors to make sure there are no frayed or broken wires, then turn to the sensor itself.

 

yep typical chevy issue. see it on s10s and fullsizes. probably one truck comes in the shop about every other week for the same issue. if you have a really good ob2 scanner with a datastream where you can see the wheel speeds you can usually see which one it is thats not working properly. it usually wont register speed untill about 10mph. or when it starts to get worse its gonna pull the opposite way when you apply the brakes. so if your right one is bad it will pull to the left cause the right has the abs going off

the way to fix it is take off your caliper and rotor then unscrew the allan head holding in the abs sensor and wire brush down the surface or use a grinder of some sort if its really a rotted mess. fixes it everytime

only down side is theres about a 50/50 shot that the wire is going to break off in there. the bearing develops a rust ring at the top of the hole and makes it hard to get it out in one piece. if thats the case then you have to buy a new wire and/or bearing BUT thats really the right to fix it anyways

 

Thanks 4 all the replys takn wheels off 2mrow will let u no wats up

 

Here's a link to the GM TSB explaining the proper way to diagnose & repair it:
https://blazerforum.com/forum/tech-a...ment%5D-26941/

 

yeah, i have alldata pro and there is a technical bulletin from GM and the above link is what i have! btw, this is happening to me to but i just pulled the fuse, works great without abs!

 

Tore brakes all aprt cleaned sensors same thing happens I'm pullin fuse 4 now thanks 4 all the replys

 

Did you check voltage at both front sensors as outlined in the TSB?