10-27-2023, 09:58 AM
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#1
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Member
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Join Date: Apr 2014
Location: Poland, Lodz
Age: 42
Posts: 56
Real Name: Lucas
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Member
Join Date: Apr 2014
Location: Poland, Lodz
Age: 42
Posts: 56
Real Name: Lucas
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Replacing brake fluid proper way
Hi,
I am going to just replace the brake fluid in the system.
Is the procedure from the Haynes manual for bleeding brake system the right way to do it?
I.e:
- (Front), ignition ON, wait for the pump motor to stop, pump pedal several times, depress pedal, bleed
- (Rear), ignition ON, depress pedal, bleed
- engine OFF, pump pedal 40 times to remove boost pressure
- done
I did it a few years ago when servicing calipers. Now I just want to replace the fluid. No air was entered in the system.
How much DOT3 will be sufficient?
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2007 SR5 4x4 V6. Bilsteins 5100 all around. Front set to 1.75. Daystar spacers 1.5 in the rear. Stock springs. Cooper Discoverers A/T3 265/75R16.
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10-27-2023, 07:16 PM
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#2
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Senior Member
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Join Date: Dec 2018
Location: New Hampshire
Posts: 1,219
Real Name: Mike
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Senior Member
Join Date: Dec 2018
Location: New Hampshire
Posts: 1,219
Real Name: Mike
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Check the brake section of the stickies thread below. Good stuff in there.
4th Gen Maintenance Tutorials, Writeups, and Picture Threads
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Mike
03 4runner Limited
1GR-FE V6 w/199k miles
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10-27-2023, 08:51 PM
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#3
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Member
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Join Date: Jun 2011
Location: Lewis Center, OH
Posts: 517
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Join Date: Jun 2011
Location: Lewis Center, OH
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The brake pumping method is very labor intensive and takes a long time to purge the entire system. If you do go that way, slide your other foot under the brake pedal so you don't depress it to the floor. Piston travel on an older master cylinder beyond normal range can damage the seals. I would recommend, however, the use of a pressure (Motive) or vacuum (MityVac Air Compressor Powered) bleeder if you are going to be doing this occasionally. It turns the process into a quicker, one person job. FYI, brake fluid should be flushed every 2-3 years as it picks up moisture.
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2000 T4R SR5 V6 (Retired) & 2005 T4R Limited V6
2002 & 2017 XLE Camry
2004 Honda Accord
2017 Tundra Limited DC 5.7L TRD 4WD
2024 Honda Pioneer 700-2 Deluxe
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11-01-2023, 11:11 PM
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#4
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Junior Member
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Join Date: Nov 2023
Posts: 3
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Junior Member
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I’ll second the Motive pressure bleeder, but I use it with a PowerProbe adapter cap. It’s milled and anodized and really nice. I tried a vacuum bleeder but it always left a soft pedal.
IDK about the 4Runner specifically, but I’ve always bled my brakes starting with the caliper furthest from the MC, and working my way back.
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11-04-2023, 08:58 AM
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#5
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Elite Member
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Join Date: Sep 2005
Location: Oakland CA
Age: 36
Posts: 5,073
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Elite Member
Join Date: Sep 2005
Location: Oakland CA
Age: 36
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me personally, I choose to vacuum out the front driver side first, this way I can refill with fresh fluid since all the old stuff is not going through the lines the long way.
just keep and eye and not to empty out the reservoir.
buy more fluid than you actually need. I bought me a case of 12 AMSOIL since
I maintain 3 vehicles. also when I changed the rear lines, I used the truck booster to help push fluid through, only do it in 20 seconds interval. you'll see how fast fluid can come out and how nasty it was if you don't flush it often.
If you choose to do the pedal method by yourself. submerge one end of hose in clean fluid. those 20 or bigger size gatorade bottle works. also put a very tiny hole on the cap so you don't have the bottle explode from pressure.
you can also was that toyota tim guy youtube where he did that lexus gx.
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Pioneer DEH-80PRS,Rockford Fosgate T600-2,Hertz ML 1650.3(2 pairs),T400-2,Hertz ML 280.3(2 pairs),T1000-1bdcp,(2)JL Audio 12W6v3, Mechman 240a HO Alternator, Dual Northstar 31m,Borla Dual Exhaust,AFE Magnumforce intake.Enkei WT-4 Michelin Defender LTX 275/55R20. retrofitted S2000 projectors,Philips 85122 White Vision,Morimoto 5Five Ballast.Diode Dynamics SS3 Yellow Fog Sport.2 pairs of Hella Supertones.Full led conversion on interior and exterior.HAWK Talon Rotors and LTS pads F+R,Stoptech stainless steel lines F+R.Bilstein 5100 @0.85, MOOG FJ Springs front,Bilstein B12 36-281824 rear .
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11-05-2023, 08:03 PM
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#6
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Join Date: Sep 2020
Location: Concord, CA '09 V6
Posts: 99
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Join Date: Sep 2020
Location: Concord, CA '09 V6
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I plan on flushing my brake fluid pretty soon. I have a Schwaben brake bleeder, would I need to turn truck's power to position II when bleeding the rear brakes?
This bleeder is a one person operation and no brake pressing is needed to drain system.
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11-05-2023, 09:16 PM
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#7
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Elite Member
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Join Date: Sep 2005
Location: Oakland CA
Age: 36
Posts: 5,073
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Elite Member
Join Date: Sep 2005
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as long you get a good seal at the reservoir with your pressure bleeder, keys is always in the off positions. pressure and vacuum method, key is always off.
Quote:
Originally Posted by Urbanite
I plan on flushing my brake fluid pretty soon. I have a Schwaben brake bleeder, would I need to turn truck's power to position II when bleeding the rear brakes?
This bleeder is a one person operation and no brake pressing is needed to drain system.
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Pioneer DEH-80PRS,Rockford Fosgate T600-2,Hertz ML 1650.3(2 pairs),T400-2,Hertz ML 280.3(2 pairs),T1000-1bdcp,(2)JL Audio 12W6v3, Mechman 240a HO Alternator, Dual Northstar 31m,Borla Dual Exhaust,AFE Magnumforce intake.Enkei WT-4 Michelin Defender LTX 275/55R20. retrofitted S2000 projectors,Philips 85122 White Vision,Morimoto 5Five Ballast.Diode Dynamics SS3 Yellow Fog Sport.2 pairs of Hella Supertones.Full led conversion on interior and exterior.HAWK Talon Rotors and LTS pads F+R,Stoptech stainless steel lines F+R.Bilstein 5100 @0.85, MOOG FJ Springs front,Bilstein B12 36-281824 rear .
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11-23-2023, 09:37 AM
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#8
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Join Date: Jun 2010
Location: Las Vegas
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Join Date: Jun 2010
Location: Las Vegas
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Quote:
Originally Posted by fishEH
I’ll second the Motive pressure bleeder, but I use it with a PowerProbe adapter cap. It’s milled and anodized and really nice. I tried a vacuum bleeder but it always left a soft pedal.
IDK about the 4Runner specifically, but I’ve always bled my brakes starting with the caliper furthest from the MC, and working my way back.
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Which model power probe bleader cap did you buy that fits our 4th gens? BA10?
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-----Marc-----
2003 V8 Limited 4WD
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11-23-2023, 06:08 PM
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#9
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Senior Member
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Join Date: Sep 2014
Location: Cherokee Co., GA
Posts: 2,757
Real Name: Russell (OB #9908)
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Senior Member
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Location: Cherokee Co., GA
Posts: 2,757
Real Name: Russell (OB #9908)
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Highly recommend Speedbleeders.
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11-25-2023, 10:35 AM
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#10
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Join Date: Mar 2022
Location: Kentucky
Posts: 487
Real Name: Rich
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Member
Join Date: Mar 2022
Location: Kentucky
Posts: 487
Real Name: Rich
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Quote:
Originally Posted by Bluesky 07
Highly recommend Speedbleeders.
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Any particular brand? I see Dorman and Russell. How about the caliper? There are different ones depending on engine size. Do you need them for the rear also or just the front?
I've used a Mitey Vac and the old fashioned way. The old fashioned way seems to work best on the fronts but I still seem to have a bubble. Brakes are good but a single extra pump makes them perfect. For the rear brakes I just let them pump out fluid for a while then close them. I do those first
Thanks
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Rich
2004 V8 4Runner 140K+ miles
Kentucky
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