Previous vehicle had regular reoccurring issues with warping rotors. Cleaning up and lubing the slide-mounts gradually devolved into an annual affair. Bought high-quality expensive rotor sets. I had two sets of rotors that I'd just regularly rotate with the beginning of Winter and Spring seasons.
Pulsing brakes is the last thing you want on slippery surfaces, ABS or not.
My theory at the time was, locked/stiff caliper slide-mounts, warp rotors.
This later proved to be correct. Asking around for a permanent solution, mechanics and parts store clerks were like, "buy new calipers". I already know from many prior experiences that aftermarket parts were junk. They generally last a
fraction of the time that OEM does.
Came up with my own permanent solution for the repeating problem.
Went to the hardware store and picked up 1.5" and 2" diameter
steel-wire pipe cleaner brushes.
View attachment 38247
Hack-sawed the handles off. Inserted into a plug-in A/C *
high-speed* drill.
(be careful not to burn out your motor - use smaller diameter brushes as needed)
Honed out the caliper slide-mount bores. When done, they were a tad larger.
Cleaned up and lubed the slide-pins as normal.
Got new silicon boots. Used high-temp bearing grease.
Stiff-wired the boots so they better retained the lube.
Never had them lock up again. Never warped another rotor.