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Don't go changin
00' RS
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7,795 Posts
Discussion Starter · #1 · (Edited)
This for a '00 RS

I'll start off by saying I got air in my brake master cylinder. So I removed it, bench bled it (no more air in it as far as I could tell, I cycled the fluid a lot) and replaced it. When I put it back in, fluid was leaking from the two holes the brake lines go into until I screwed them in (could air have gotten back in there on this step?). I bled the brakes according to Subarus order (RF, LR, LF, RR). On the first caliper air came out for a long time but eventually stopped and the fluid became solid. I continued with the bleed procedure and finished. Then I rinse, lathered and rebled 2 more times. The next 2 times no air came out of any of the calipers.

The brake pedal feels great when the car is off. When I turn it on, all pressure is gone. The ABS light is on when the car is on the ON position, but turns off quickly after the car turns on. According to the hours of reading on this I have done, I have to make the car bleed the ABS pump by grounding terminals 3 and 6 on the B82 connector under the dash. I don't even really know what that means. I got under there and saw what I think is the B82 connector, but I don't know how to put grounds in there or whatever. Is this step necessary for my car? I've seen it in NASIOC Technical and in a Service Manual but cant find it anywhere else.

We didn't depress the pedal fully to the floor or push it down fast. So I don't think the seals inside the MC are bad.

Halp please.
 

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00 White GC8 (GM8) P1 twin, EJ207, 5spd DCCD, cusco rear LSD, STi front LSD
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1,045 Posts
try bleeding the master the same way you bleed the calipers while its in the car. its a little messy but keep a spray bottle near by to clean up the fluid. it loves paint.

also, it wouldnt hurt to bleed the bias valve on the passenger side strut pillar. i dont have ABS in my subaru, but what i have said is what i have done. good luck.
 

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2000 2.5 RS
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385 Posts
I still don't understand why bleeding the brakes on our cars is so difficult. It took me at least a half dozen bleeds before I could even feel my pedal resisting.
 

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Don't go changin
00' RS
Joined
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7,795 Posts
Discussion Starter · #4 ·
I don't know anything about how the ABS is affected by air getting in the master cylinder. My best guess is to bench bleed the MC again (maybe leave it on the car this time) and rebleed the system all over again.
 

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Don't go changin
00' RS
Joined
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7,795 Posts
Discussion Starter · #5 ·
Well I just made an appt with the local stealership. Of course when I told him the MC ran dry he gave me "ohh thats not good, it needs to be looked at."
 

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92 Crown Vic
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629 Posts
well if you didn't activate the abs when the lines disconnected the the problem is not abs. but just a brake bleed over and over and over...... i have the same problem with my clutch, i think i need a new slave cyl. i would do what you are doing go to a dealership. or keep bleeding over and over.

james
 
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