# Need help with brakes on Mom's Subaru **URL:** \ **Category:** Shift518 Automotive\ **Created:** [January 28, 2011, 2:18pm UTC](https://forums.speedlife.net/t/need-help-with-brakes-on-moms-subaru/256662 "2011-01-28T14:18:19Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![Ilya](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ilya/32/6404_2.png) [@Ilya](https://forums.speedlife.net/u/Ilya)\ **Post date:** [January 28, 2011, 2:18pm UTC](https://forums.speedlife.net/t/need-help-with-brakes-on-moms-subaru/256662/1 "2011-01-28T14:18:19Z")
Dad is telling me the brake pedal keeps collapsing. He’s bled the air from the system twice already and it still happens. No leaking anywhere as far as he can tell. I had him check the brake booster for vacuum and he says it’s good. Is it the master cylinder? Or could it be something else? ---
**Author:** ![88slowmarro](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/88slowmarro/32/6339_2.png) [@88slowmarro](https://forums.speedlife.net/u/88slowmarro)\ **Post date:** [January 28, 2011, 2:23pm UTC](https://forums.speedlife.net/t/need-help-with-brakes-on-moms-subaru/256662/2 "2011-01-28T14:23:09Z")
could be frozen slide pins . the pads have detached from the pad backer , the list goes on man . id check to see if the pins move and the pads move first . ---
**Author:** ![Vovchandr](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/vovchandr/32/6275_2.png) [@Vovchandr](https://forums.speedlife.net/u/Vovchandr)\ **Post date:** [January 28, 2011, 2:30pm UTC](https://forums.speedlife.net/t/need-help-with-brakes-on-moms-subaru/256662/3 "2011-01-28T14:30:46Z")
Collapsing as in going straight to the floor? Does it come right back and work or no pressure at all? ---
**Author:** ![88slowmarro](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/88slowmarro/32/6339_2.png) [@88slowmarro](https://forums.speedlife.net/u/88slowmarro)\ **Post date:** [January 28, 2011, 2:32pm UTC](https://forums.speedlife.net/t/need-help-with-brakes-on-moms-subaru/256662/4 "2011-01-28T14:32:36Z")
if its bleedin out good im sure the hydrolics are fine . ---
**Author:** ![Ilya](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ilya/32/6404_2.png) [@Ilya](https://forums.speedlife.net/u/Ilya)\ **Post date:** [January 28, 2011, 2:32pm UTC](https://forums.speedlife.net/t/need-help-with-brakes-on-moms-subaru/256662/5 "2011-01-28T14:32:43Z")
> [@STi vs civic vs GTi (NSFW on post #222)](https://forums.speedlife.net/t/sti-vs-civic-vs-gti-nsfw-on-post-222/38452/198): > > Collapsing as in going straight to the floor? Does it come right back and work or no pressure at all? Collapsing and little pressure if any. > [@Airbag Light](https://forums.speedlife.net/t/airbag-light/33906/3): > > could be frozen slide pins . the pads have detached from the pad backer , the list goes on man . id check to see if the pins move and the pads move first . > [@FS:V1](https://forums.speedlife.net/t/fs-v1/39151/12): > > if its bleedin out good im sure the hydrolics are fine . He says he checked all that. Says hardware on the brake end is good. I’m talking to him on the phone though, so just what he says. Thanks John. I think he just ordered an MC from Napa. It will be here Tuesday. If anyone has any other ideas, please feel free to post. Thanks! ---
**Author:** ![88slowmarro](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/88slowmarro/32/6339_2.png) [@88slowmarro](https://forums.speedlife.net/u/88slowmarro)\ **Post date:** [January 28, 2011, 2:34pm UTC](https://forums.speedlife.net/t/need-help-with-brakes-on-moms-subaru/256662/6 "2011-01-28T14:34:15Z")
if its bleedin why is he gettin a m/c ? ---
**Author:** ![Ilya](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ilya/32/6404_2.png) [@Ilya](https://forums.speedlife.net/u/Ilya)\ **Post date:** [January 28, 2011, 2:42pm UTC](https://forums.speedlife.net/t/need-help-with-brakes-on-moms-subaru/256662/7 "2011-01-28T14:42:00Z")
> [@Airbag Light](https://forums.speedlife.net/t/airbag-light/33906/5): > > if its bleedin why is he gettin a m/c ? Everything I’ve read suggests one of the symptoms can be what’s happening to the car (pedal not returning, mushy, etc.). Is that an incorrect possible diagnosis? It’s a 9yr old car, if that makes any difference. ---
**Author:** ![88slowmarro](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/88slowmarro/32/6339_2.png) [@88slowmarro](https://forums.speedlife.net/u/88slowmarro)\ **Post date:** [January 28, 2011, 2:44pm UTC](https://forums.speedlife.net/t/need-help-with-brakes-on-moms-subaru/256662/8 "2011-01-28T14:44:13Z")
its hard to tell without seein it man , honestly i have nevrrrrrr done a m/c in a scooby . im thinkin a slide pin froze up or suttin dumb ---
**Author:** ![Vovchandr](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/vovchandr/32/6275_2.png) [@Vovchandr](https://forums.speedlife.net/u/Vovchandr)\ **Post date:** [January 28, 2011, 2:44pm UTC](https://forums.speedlife.net/t/need-help-with-brakes-on-moms-subaru/256662/9 "2011-01-28T14:44:31Z")
So everytime you give pressure to the pedal it goes to floor? Like John said, if the fluid level is still good and it’s not bleeding it’s likely to be the booster. ---
**Author:** ![88slowmarro](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/88slowmarro/32/6339_2.png) [@88slowmarro](https://forums.speedlife.net/u/88slowmarro)\ **Post date:** [January 28, 2011, 2:49pm UTC](https://forums.speedlife.net/t/need-help-with-brakes-on-moms-subaru/256662/10 "2011-01-28T14:49:04Z")
booster isnt bad lolol i said pins in the calipers man ---
**Author:** ![Boxersix](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boxersix/32/6327_2.png) [@Boxersix](https://forums.speedlife.net/u/Boxersix)\ **Post date:** [January 28, 2011, 2:57pm UTC](https://forums.speedlife.net/t/need-help-with-brakes-on-moms-subaru/256662/11 "2011-01-28T14:57:06Z")
MC can bleed out and still bypass fluid past the piston oring under pressure and leak into the booster. Rare on these cars, but can happen. As Jon said, can be numerous things. If he’s 100% sold on it be fine at the wheels, I’d start looking at the master on the bottom side for fluid and/or check the ABS module. Shouldn’t have bought a napa MC. Should buy a new OEM one from Fred down at Capital land subaru on rt50… Tell him I sent you and he’ll cut you a little discount. He’s the parts manager there, same guy I sold my frankenstein WRX to. ---
**Author:** ![Ilya](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ilya/32/6404_2.png) [@Ilya](https://forums.speedlife.net/u/Ilya)\ **Post date:** [January 28, 2011, 3:38pm UTC](https://forums.speedlife.net/t/need-help-with-brakes-on-moms-subaru/256662/12 "2011-01-28T15:38:52Z")
Thanks guys. Thanks Adam, I’ll let my pops know.