Posting for a friend but please point me in the right direction.

A few years ago I (for him) replaced all 4 calipers, rotors, pads, etc....things were good.

Just recently he replaced his Brake Booster and Master Cylinder (not sure what led to this), but long story short everything is back together and he doesn't have brakes.

My GUESS is that the system needs a good flush, new fluid, etc....

My problem is I'm unsure how to bleed the ABS system. A few google searched indicate I need a scan tool, but is there another way? Can I jump something.

So my question, how do I completely bleed the brake system on this truck?

Thanks in advance for your replies!!

-JOE

 

Before any of us can give some advice, it would be nice to know what you mean when you say, "he doesn't have brakes."

When the brake pedal is pushed, what exactly happens?

 

Legitimate question!!! Pedal goes to the floor so I'm certain there is air in the system. I'm ok with bleeding system, just concerned about the ABS part of it.

 

Does it go slowly or fast? Does it take a lot of pressure, or does it fall on it's own? Can the pedal be pumped up, like will pushing the pedal up down 20 times restore some brake feel??

Did your friend bench bleed the M/C before he installed it?

 

my money is on the fact he just put the master cylinder on the truck and never bench bled it.

 

He said he did bench bleed however that is something I have never done and would be unaware how to do it. I'm assuming it's basically like priming the master cylinder with brake fluid?

The brake pedal does return to the normal position when you Leticoe however it goes to the floor with little to no pressure. I remember when I replaced as calipers last year that we had to pump the brakes for probably five minutes before I was able to build any pressure on them and actually flush the lines appropriately

I apologize for any miss types I'm currently talking into the iPhone and letting Siri figure it out.

 

Purchase yourself the pump style brake bleeder that attaches to the master and bleed. If you have deep pockets get a power bleeder cats meow. Start from the furthest bleeder (passenger rear) working your way to the closest(drivers front). The antilock portion was likely not disturbed. If it was Im not sure how to go about forcing a bleed on this circuit. Refer to the Ford service manual or Google.
Yes bench bleeding is basically getting all the air out of the front & rear cylinder circuits and is a must do upon master cylinder R&R.

 

Ok so I bled the brakes the "old fashioned" way and it's good to go. Had a ton of air in the system.