Re: New master and now no power brakes
Hey Shawn, have you ever checked how much vacuum your truck is producing? Do a simple vacuum test and see if your in the 18"-22" range. If you're below 18" of vacuum, you won't have enough to operate them on a vacuum booster as well as you would expect. They will still work, but just like you're explaining.
When I had this problem with my GTO, I thought I had bled the system pretty well, but wound up paying a shop to pressure bleed my brakes and they were able to get more air out, which helped but still didn't get it to where my drums were. I found out that I didn't have enough vacuum to operate the typical vacuum booster so I switched to hydraulic.
Do a vacuum test so you can at least rule that out. I'm curious if your next swap will fix your problem. Good luck!
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