brake bleeding, air in abs?

[Grip Ronin]

So i have just changed my pads and while i was at it i vacuum bled my brakes, I did my best to keep the res full but it seems something has gone wrong. My pedal goes to the floor but applies a slight pressure to the pads. There are no leaky bleeders so im thinking some air got into the abs block in which there is no bleeder equipped. how do i fix this?

[D_Thissen]

Bring it to the dealership might be the easiest thing to do.

[Grip Ronin]

Originally Posted by D_Thissen

Bring it to the dealership might be the easiest thing to do.

i work right next to a subaru dealer thats part of my chain lol but i have the toyota program at home so i dont see something that they can do that i cant, except pressure bleed i dont have the adapter for this car

[N1rve]

Originally Posted by Grip Ronin

So i have just changed my pads and while i was at it i vacuum bled my brakes, I did my best to keep the res full but it seems something has gone wrong. My pedal goes to the floor but applies a slight pressure to the pads. There are no leaky bleeders so im thinking some air got into the abs block in which there is no bleeder equipped. how do i fix this?

Re-bleed the system. That's what they would do anyways.

[wparsons]

You probably need to bench bleed the master cylinder, sounds like you sucked in air into the master cylinder.

[Grip Ronin]

Originally Posted by wparsons

You probably need to bench bleed the master cylinder, sounds like you sucked in air into the master cylinder.

ya im seeing in the service manual it says to pull the two main lines and bleed it by pumping and blocking the holes with your fingers, you think a master cyl would let the air rise up and out from pumping it

[ZionsWrath]

Try to bleed old fashion way first. Or buy a motiv bleeder, its only $50.

I'd rather do that first than bleed the master.

I haven't heard many good things about vacuum bleeding. I have used a tube from the bleeder into a container when the end is submerged in brake fluid and pumped the pedal. This worked fine as well.

I use a motiv bleeder on my BRZ and have a firm pedal every time.

[Grip Ronin]

Originally Posted by ZionsWrath

Try to bleed old fashion way first. Or buy a motiv bleeder, its only $50.

I'd rather do that first than bleed the master.

I haven't heard many good things about vacuum bleeding. I have used a tube from the bleeder into a container when the end is submerged in brake fluid and pumped the pedal. This worked fine as well.

I use a motiv bleeder on my BRZ and have a firm pedal every time.

i think i used the old pump and hold style when i did steel lines and the 4 pot calipers. Had no issue the first time. im going to go try it now

[kosoku]

Gravity bleed it. Time consuming but very effective.

[cjd]

Originally Posted by kosoku

Gravity bleed it. Time consuming but very effective.

Pressure bleeding is this, but faster (or so) - wasn't sure about the Motiv but glad I got it.

That said, I was surprised how long the train of almost invisible bubbles took to clear out. I think I still have a little air in the system, but no issues getting lots of brake when I need it.

[Grip Ronin]

managed to get the air out but cycling the abs motor and solenoids and pump bleeding, it was trapped in the rears. Still feels like im hitting abs early but i have good pressure. ill have to figure that out. It might be the new pads

[kosoku]

Originally Posted by cjd

Pressure bleeding is this, but faster (or so) - wasn't sure about the Motiv but glad I got it.

That said, I was surprised how long the train of almost invisible bubbles took to clear out. I think I still have a little air in the system, but no issues getting lots of brake when I need it.

i'm aware its the same. in my experience slower is better when it comes to bleeding.
Not to say pressure bleeding doesn't work!

[Kev951]

@Grip Ronin, what scan tool did you use to cyle the abs motor / solonoids?

[Irace86.2.0]

I have this power bleeder.

https://www.summitracing.com/parts/m...yABEgLS-PD_BwE

And I have speed bleeders too.

http://www.russellperformance.com/mc/speed-bleeders/

If you put the car on a lift then you can activate the ABS to try to purge the system by running the car in gear. Just don't fall off if you use jack stands.