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By Mark Shively
This is very common and often causes brakes to over-heat, fade, and even fail.
What happens is with time brake fluid changes chemically into a solid gel or in severe cases a crystal powder. The gel or powder expands against seals and seals are pressed against caliper pistons and prevent pistons from returning completely [...]

By Mark Shively
Vacuum bleeders sometimes are more troublesome than efficient. Other times they work well. The old school way to bleed is to allow the master cylinder to purge the system of air. This may be slow at times, but effective.
To begin, flush the existing brake/clutch fluid from the reservoir. Pump it through the [...]