Brake System Flushing Tools - Mazda3 Forums : The #1 Mazda 3 Forum
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post #1 of 49 (permalink) Old 08-26-2018, 10:54 PM Thread Starter
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Brake System Flushing Tools

I need to flush the brake system on both my Mazda and non-Mazda vehicle. I've seen references to vacuum units that operate with the aid of an air compressor; however, it looks like they're set up for European vehicles. I've been considering a pressurized unit which requires the mechanic to pressurize the unit with a hand pump before he/she drains the fluid at each wheel.

Does anyone have any experience with such units? The benefit is the ability for a single person to handle the complete changing of the fluid rather than the two-person pedal pump system. I'm certain there is a solution out there for less than $75. I do have a Mighty Vac brake bleeder, but that's not enough for performing a serious flush.

2006 Mazda 3 2.3L Hatchback 5-speed Automatic - 180K miles
I never purchase Harbor Freight tools.
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post #2 of 49 (permalink) Old 08-27-2018, 12:23 AM
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Most cars now have ABS??? Anyone performing service work except pads and rotors and simple brake fluid replacement (master cylinder and at the calipers only) or bleeding the brakes should study how to do it (*and it is not easy for DIY). Most that think they are replacing the complete fluid are actually only only replacing most but not all the brake fluid with an ABS brake system because of the complexity of the system..
I recomend is a *complete flushing & replacement is serviced that people you use ONLY the FACTORY SERVICE MANUAL for their year and model vehicle and follow EXACTLY the procedure outlined.

When DIY or less then an experienced "mechanic" try to do service on their brakes if not done properly not only take your life into your hands if it is not done correctly but everyone else they share the road with as well!!!

Last edited by M3RacerX; 08-27-2018 at 12:30 AM.
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post #3 of 49 (permalink) Old 08-27-2018, 03:56 AM
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Quote:
Originally Posted by VWandDodge View Post
I need to flush the brake system on both my Mazda and non-Mazda vehicle. I've seen references to vacuum units that operate with the aid of an air compressor; however, it looks like they're set up for European vehicles. I've been considering a pressurized unit which requires the mechanic to pressurize the unit with a hand pump before he/she drains the fluid at each wheel.

Does anyone have any experience with such units? The benefit is the ability for a single person to handle the complete changing of the fluid rather than the two-person pedal pump system. I'm certain there is a solution out there for less than $75. I do have a Mighty Vac brake bleeder, but that's not enough for performing a serious flush.

automotive bleeder screw with a built-in check valve --- cheapest solution --- one person operation.

The fancy brake bleeding pressurized systems are handy, but expensive.
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post #4 of 49 (permalink) Old 08-27-2018, 12:07 PM
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I've only used the vacuum method using a Mighty Vac. I wasn't all that impressed and went back to the 2-person method. My son and I can knock out a system flush in about an hour. In Colorado we have the advantage of super dry air, so brake fluid probably can last a long time, but I still like to change it every two years.

I really should buy one of those simple 'hygrometer' type testing units to measure the moisture content.
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post #5 of 49 (permalink) Old 08-28-2018, 01:55 AM
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i use a vacuum bleeder that attaches to the bleed nipple
i first vacuum out all fluid from the master. then fill with fresh using a different brand/color to last time
then connect bleeder to bleed nipple and loosen bleed nipple
then pump pedal maybe 6 times and top up master
repeat until you see the color change in the bleeder hose
then lock nipple
using a piece of wood between seat base and brake pedal, i depress pedal then just crack bleeder to get last bit of air out
then move on to next wheel
and if anybody with abs tells me you must start with wheel furthest from master cyl i will scream as they are all separate pipes now
if i have a helper it is a lot quicker
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post #6 of 49 (permalink) Old 08-28-2018, 09:16 AM
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There is a difference between a flushing what the OP considering doing and bleeding,refill of a brake system? One is easily accomplished and can be done without the aid of special tools and diagnostic equipment. I would suggest that VWandDodge who is wanting information about "flushing" (thread title :Brake System Flushing Tools ) read up on these 2 very different methods of service on a vehicle.

Last edited by M3RacerX; 08-28-2018 at 09:18 AM.
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post #7 of 49 (permalink) Old 08-28-2018, 02:01 PM
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Quote:
Originally Posted by lout View Post
and if anybody with abs tells me you must start with wheel furthest from master cyl i will scream as they are all separate pipes now
Hey, this is all I knew! If I don't have to do it in any particular order now, then that is great. I just explained this concept about starting from the furthest wheel and moving to the closest wheel to my son.

You may scream if it makes you feel better. :-)
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post #8 of 49 (permalink) Old 08-28-2018, 02:18 PM
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many responses are exactly why I get lots of customers with brake issues after the attempt to work on their brakes with ABC and TRAC.



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post #9 of 49 (permalink) Old 08-28-2018, 03:56 PM
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The only tools you need are a turkey baster, an 8mm flare wrench, a 10mm flare wrench, a hose clamp, some clear tubing, and an empty soda bottle with a hole drilled in the lid.

Pour some brake fluid in the soda bottle

Put the tubing down the bottle so the end is submerged in the brake fluid.

Put the flare nut wrench on the bleeder valve

Place the tubing over the bleeder valve, and use the hose clamp to tighten it down.

Pop the top off of the master cylinder

Empty as much fluid as you can with the turkey baster, and fill it with fresh fluid

Open the bleeder valve

Pump the brakes, watching the fluid come out

Keep an eye on the fluid level in the master cylinder. Keep refilling as it goes down.

When the fluid runs clear, you're done. Tighten the bleeder screw, and move on to the next wheel.

I like to start at right rear, then go left rear, then right front, finishing up at the left front.

EricTheCarGuy has an awesome video showing this process. I've done it, it really works great.
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post #10 of 49 (permalink) Old 08-28-2018, 04:22 PM
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The thread initial question and also a follow up that is NOT BLEEDING but "FLUSHING" . The vehicle (at least one) the OP is mentioning although he has not confirmed but may in fact have ABS brake system !!!

Many times you won't even know you did it incorrectly until the ABS activates for a panic stop and then you will know very fast that something is not working properly.

But fear not the vehicle in front of you will act as an example of Newton's ABS braking law of physics's which is that every car in front of you will remain stopped and will help you to stop your vehicle when you hit it.

I know Eric (The Car Guy) for years and often use his video's to support some of my service technical support on forums. Some may look a little more for his video information about ABS system.
A quote I found today:
The biggest challenge for those of us with partial knowledge is to know our limits.
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