Replaced Brake Hoses and M/C - NOW WHAT? - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 10-17-2019, 05:05 AM Thread Starter
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Replaced Brake Hoses and M/C - NOW WHAT?

Have a 2009 Super Duty Crew Cab 6.4L 4x4. It is no longer a daily driver so I have time to tinker with it myself. After replacing my rear brake calipers, pads and rotors, I started the brake bleeding process. While doing so, a lot of black flaky crud came out of the new calipers. It certainly looked like degraded rubber. Using my not so powerful intuition, I got to thinking it was the hydraulic brake hoses degrading on the inside. After all, they are ten years old now. I have replaced all of the rubber hoses beginning at right rear working up to left front. And for good measure I went ahead and replaced the master cylinder. Not sure if it needed it but there are rubber components in there from what I have read. I bench bled the M/C after watching some youtube. After I installed the M/C, I used the old fashion brake bleeding method of yelling at a helper to push and let off from RR to LF. I don't think air would have entered the ABS modulator but I went ahead and got an OBDII that operates the ABS and followed the instructions cycling the modulator and cracking the bleeder screws. BUT, I still am getting some air bubbles out of the rear calipers. Have I missed anything???? Is this a repeat the process until no more air bubbles thing? Do I need to do the hokey pokey or anything? From what I have read and watched on the all knowing internet, this seems to be the entire process. I am not leaking fluid on the ground anywhere so not sure the system is sucking air. TIA for any tips.
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post #2 of 7 Old 10-17-2019, 06:49 AM
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Well at the cost of brake fluid....how much is too much to bleed?? I'd start back at the rear and bleed till no air. IF you go thru a whole bottle of brake fluid that might tell you there's another issue to find. If you go thru two bottles and the whole system is bled properly, that's fine.


Maybe use a vacuum style brake bleed device.
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post #3 of 7 Old 10-17-2019, 06:53 AM Thread Starter
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True, fluid is cheaper than time. I may be too inpatient. Never done this before so was not sure what to expect. Ill probably pick up a harbor freight vacuum bleeder special today.
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post #4 of 7 Old 10-17-2019, 07:00 AM
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I bled all 4 corners on my 08 earlier this year since it had never been done. Starting with the right rear and working up till closest to MC. I just did the old school way of yelling at my wife. I remember thinking it took forever to get clear fluid (I never had any air bubbles problem since I didn't replace hoses or calipers). It took probably 20+ cycles at least of her pumping brake pedal a few times, holding, then me opening the caliper fluid valve till her pedal went to the floor. Then repeating. The front calipers took about 5-8 cycles I think.
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post #5 of 7 Old 10-17-2019, 07:34 AM
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Speed bleeders

Sent from my SM-G960U using Tapatalk

2004 F250 CCSB 4X4
4" Skyjacker lift
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35x12.5x18 Nitto Ridge Grapplers on Method MR309 wheels
KDD heads, ARP studs, BD exhaust manifolds, DieselSite up pipes, Mishimoto degas bottle
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post #6 of 7 Old 10-20-2019, 06:29 PM Thread Starter
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Quote:
Originally Posted by voodooridr View Post
Speed bleeders

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Never used them, so I ordered some. Well worth the money per caliber.
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post #7 of 7 Old 10-20-2019, 06:58 PM
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I've used them on all my motorcycles and finally switched to them on the F250 when I did the Russell lines

2004 F250 CCSB 4X4
4" Skyjacker lift
3:73 gears
35x12.5x18 Nitto Ridge Grapplers on Method MR309 wheels
KDD heads, ARP studs, BD exhaust manifolds, DieselSite up pipes, Mishimoto degas bottle
PHP Insight PRO
PHP Atlas 40 FICM tune
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