I was hoping someone could explain these products and if they feel led, put their 2 cents in about brake bleeding. My brakes are slightly insensitive right now, even though they work and I'm considering purchasing a 50 dollar reverse brake bleeder online so I could ensure they are working the best for this upcoming winter.

Update: While the answers and comments are useful, I still want to get at the root of the question which I will try to word better. For example, if the Mityvac 8500 can create positive and negative pressure with a switch on the apparatus, how is using it with positive pressure at the bleeder not exactly the same as a "reverse" bleeder?

  • For many vehicles, the "old school" method of pushing on the brake pedal and opening the bleed valve was usually sufficient...
    – Solar Mike
    Commented Oct 10, 2019 at 18:42

1 Answer 1


Reverse bleeder pumps brake fluid from the caliper bleed screw back to the master cylinder. This type is hard to use because Master Cylinders do not have bleed screws to connect to.

Vacuum pump is the opposite, it sucks brake fluid from the Master Cylinder when connected to the brake bleeder on the caliper. Note: some vacuum pumps on the market can create positive or negative pressure, making some capable of reverse bleeding.

There is one more option called a pressure bleeder, but they are expensive and you have to have the correct Master Cylinder adapter cap for your vehicle.

  • Do you have a recommendation of these three? You'd mentioned the Reverse Bleeder is hard to use. It seemed liked a great option since it allows bubbles to go the direction they are already going, but I have little experience bleeding brakes. Commented Oct 10, 2019 at 17:45
  • I have always used the Vacuum bleeder.
    – Moab
    Commented Oct 10, 2019 at 18:44
  • Moab, I provided some clarification in my question. Do you think you could take a stab at providing your insight with that portion of the question? Thanks in advance. Commented Oct 13, 2019 at 14:33
  • I don't think one is better at bleeding than another, its a matter of preference.
    – Moab
    Commented Oct 13, 2019 at 15:17
  • So, I could "reverse" bleed with a normal vacuum bleeder (assuming it can create positive or negative pressure)? Commented Oct 13, 2019 at 18:16

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .