Looking for a ford master techs advice.
2012 Ford Edge Brake Failure
Hello car community im pretty mechanically inclined but theres some things on vehicles im still learning. I normally do my own maintenance and repairs but i believe im forced to go to a shop on this one. I have a 2012 ford edge that has had on and off brake issues for the past year. A year ago my brakes felt spongy and i took the advice of a tech that said to find a gravel road and purposely make it skid in forward and reverse to unlock the solenoids in the abs control module or the hydraulic control unit? To be honest im not entirely sure if thats two separate things or not? Well i figured it was a hail mary moment but it actually worked and brought my brakes back to life for nearly a year now. Well the sponge is back and skidding isnt doing the trick this time. The car definitely will still skid, no abs light that i could see or feel in the pedal. Possibly only the fronts were locking up? To me this seems like the seals are possibly worn in the master cylinder but the abs not engaging is where i second guess myself. The car has 140k miles so im sure parts are worn out. Ive read that these cars are notoriously hard to bleed the brakes and ford never released a proper fix. Apparently the job requires a scan tool to properly bleed the system which i do not own. Does anyone have a rough estimate on what either item may costs for replacement or even help in narrowing down whats actually failed? Thanks for taking the time out of your day, i greatly appreciate any advice and help given.