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Brake Bleeding Help

How-To: 
9K views 19 replies 11 participants last post by  Iowan 
#1 · (Edited)
I have a cheap Bleeder something like this I bought at Advance Auto Parts. It was like $40.

You hook a hose to the bleeder screw, that hose goes to a reservoir, another hose goes to the hand held vacuum pump, loosen the bleeder screw and you keep pumping the hand held bleeder till no more bubbles or till the fluid is clean then tighten the bleeder screw.

The reservoir is designed so you can not suck fluid into the pump.

Truly a one man job and it saves you time asking for someone to pump the brakes and will help you from damaging your Master Cylinder by pumping it past its regular brake pedal travel. Make sure you monitor your master cylinder so it doesnt run dry, if it does you have to re-bleed the system again.

Start from the farthest away brake bleeder and work your way up to the closest brake bleeder.




Here is some reasons why to change Brake fluid.
http://www.babcox.com/editorial/bf/bf40142.htm
Brake Bleeding | Advance Auto Parts
Brake Bleeding: Bleeding Brakes: Pressure Bleeding: Hydraulic Brakes: Brake Systems: Brake Lines: Master Cylinders: Brake Bleede
 

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Discussion starter · #3 ·
Yeah I forgot to say about the guage on mine. Yes it can be used to diagnose engine leaks or faulty engine vacuum controlled parts.
 
Discussion starter · #5 ·
Pushing fluid backwards can damage the ABS.

There are other bleeders that hook up to the M/C and put pressure on the system and all you have to do is crack the bleeders and the fluid will pour out under pressure.
 
Discussion starter · #9 ·
Actually you can use a big Pickle or Mayonnaise bottle too and your car to operate it for you.

Poke 2 holes in the lid.
Add one 2 foot hose that goes to the bottom about 1 inch off the bottom through the 1st hole, seal hose with silicone.
Add one 5 foot hose that goes 1 inch from the top in the 2nd hole, seal hose with silicone.

Attach the 2 foot hose to the bleeder screw, attach the other hose to a vacuum line on the engine.

When the engine is running it will pull the vacuum and suck the fluid out the bleeder.

Do at your own risk.

I have used this method to remove extra overfilled transmission fluid out the dipstick hole.
 
Discussion starter · #12 ·
The better way is they way you choose cause I prefer Vacuum and others prefer Pressure. they both have their advantages. I know Pressure uses more fluid.
 
Discussion starter · #14 ·
Your thinking old school systems. Back in the day it was OK to push the fluid backwards. Nowadays if you do this you can damage the ABS system by contamination.

Yes the calipers and Wheel Cylinders do push fluid back and forth through the lines during normal use but this is only just a little, it never goes back that far.

New ABS systems it is recommended to open the bleeder screw first and then push the pistons in and wheel cylinders to avoid contaminating/damaging the ABS system. Contamination just wont damage the ABS but high volumes of fluid can damage the ABS system if the fluid is pressurized (pushing the pistons in and wheel cylinders) and goes backwards since the brake system is really a 1 way system.



Well, I'm no brake expert. That said, when the calipers and wheel cylinders are retracted to allow new pads and shoes, the old fluid pushes back up into the master cylinder anyway. By removing that spent fluid (suction cylinder), then using a pressure bleeder to push new fluid into the M/C, through the lines, and into the calipers/cylinders, new fluid from top to bottom.
 
Discussion starter · #17 ·
Yes some fluids you can not mix, also some systems can leak due to different types fluids. I always use what it says on the cap.
 
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