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The newer trucks have three-channel ABS--individual front brakes, both rear brakes together. Each channel has a pair of solenoid valves. Front brakes share an accumulator, rear brakes have an accumulator.Schurkey living out in the country and having a long lane way I cycle the abs by slamming on the brakes. I do this a few times a year. I believe this exercise helps keep it good but the one time I needed to cycle the abs and I didnt have the scanner. I downloaded and paid for a couple apps that are supposedly able to perform the task but I just got pissed trying to figure it out. I jumped in the truck and cycled it many times by slamming on the brakes and then went back and rebled everything. I know this is not the ideal procedure but if one can do this safely, like on a farm and not a public road, how do you feel about it?
Al
Yes.So I put that new master cylinder on, put some fluid in it and now the brakes go straight down nothing there at all. Probably needs a thorough bleedin'?
That's why I thought, I replaced it because it came with it, and I was bored lolYes.