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Old 04-12-2014, 08:06 PM   #1
Zomgweee
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Default Terrible brakes even with new calipers

I need help figuring out what's wrong with my brakes! I have a 02 Wrx. When I bought the car, the brakes were bad but still drivable. I decided to get 06 Wrx calipers and new brake pads and rotors all around, after replacing them, it only got worse. The brakes went straight to the ground and wouldn't stop my car. Thought maybe the kid sold me bad calipers so I rebuilt them and put on the stocks while I did. While my stocks were on, it went back to being bad but drivable. After my rebuild of the 06's I put them back on (today). They are still terrible!!! Oh! And I forgot to say, I bled the brakes in the correct order after changing the calipers around each time.

Symptoms:

Parked and car on: Initially brakes go to the floor but persistent pumping tightens the brakes and then they will not reach the floor.

Slowly applying the brakes: foot slowly goes to floor

Quickly applying brakes: brakes get really stiff, then go soft after a second or two and go to the floor.

Thanks in advance!
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Old 04-12-2014, 08:12 PM   #2
m71owner
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I'm pretty sure you have a leak in the brake lines. This is what was happening to my civic when I had a leak in my rear lines. Got them replaced and haven't had a problem since. Now I do understand that a wrx is not a civic but take a look I to it.
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Old 04-12-2014, 08:44 PM   #3
Zomgweee
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Thanks! I will take a look. How'd you find the leak and where did you find it?
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Old 04-12-2014, 08:45 PM   #4
bryanwrx626
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There is a leak in your brake lines.
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Old 04-12-2014, 09:30 PM   #5
Dmochowski
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Quote:
How'd you find the leak and where did you find it?
you said you replaced the calipers so it would make sense its somewhere between the hard line in the fender well and the caliper? Clean them off with degreaser or something then look for if fluid is collecting somewhere on the line or at a connector. Be careful bc leaking brake fluid will ruin the finish of the wheel if its dripping on there when you drive.

Cant you just clean it up and then turn the car on and have a friend pump the brakes and look for a leak?

still the factory rubber lines?
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Old 04-12-2014, 09:48 PM   #6
mav1c
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Maybe stating the obvious, but do you have the calipers on the correct sides? The bleed valve should always be facing up.
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Old 04-12-2014, 10:31 PM   #7
ctrlaltdel
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If no leak sounds like you just have lots of air in the lines. Mine did this and it took me bleeding the brakes 5 times. Finally worked it's way out.
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Old 04-12-2014, 10:40 PM   #8
Dmochowski
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Quote:
If no leak sounds like you just have lots of air in the lines. Mine did this and it took me bleeding the brakes 5 times. Finally worked it's way out.
yeah if you plan on doing your own brake work i would recommend the motive power bleeder. I picked one up and i am able to easily bleed my brakes with just myself.
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Old 04-13-2014, 08:04 AM   #9
papajam
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Quote:
Originally Posted by Zomgweee View Post
Slowly applying the brakes: foot slowly goes to floor
Quickly applying brakes: brakes get really stiff, then go soft after a second or two and go to the floor.
Sounds like the primary seals in the brake master are leaking
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Old 04-13-2014, 08:09 AM   #10
Uncle Scotty
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yeah...the mc is gonna have to get replaced.....and all the hardlines inspected for leaks
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Old 04-13-2014, 08:42 AM   #11
m71owner
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Quote:
Originally Posted by Zomgweee View Post
Thanks! I will take a look. How'd you find the leak and where did you find it?
Well I didn't really have to look very hard. The hole was so big that the brake fluid was shooting out of the hard lines right in the middle of the car. The car was relatively new to me with 250k on it so I knew I was going to have to start replacing things.
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Old 04-13-2014, 11:01 AM   #12
Zomgweee
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Quote:
Originally Posted by Dmochowski View Post
you said you replaced the calipers so it would make sense its somewhere between the hard line in the fender well and the caliper? Clean them off with degreaser or something then look for if fluid is collecting somewhere on the line or at a connector. Be careful bc leaking brake fluid will ruin the finish of the wheel if its dripping on there when you drive. Cant you just clean it up and then turn the car on and have a friend pump the brakes and look for a leak? still the factory rubber lines?
It does make sense but the only thing is, it's been like this since I've bought the car and I still have the same issue. I will check there though. And yes, still factory rubber lines
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Old 04-13-2014, 11:02 AM   #13
Zomgweee
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Quote:
Originally Posted by mav1c View Post
Maybe stating the obvious, but do you have the calipers on the correct sides? The bleed valve should always be facing up.
Lol it's okay. State the obvious because I could have missed something simple.

But yes, they are all on the correct sides
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Old 04-13-2014, 11:05 AM   #14
Zomgweee
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Quote:
Originally Posted by Dmochowski View Post
yeah if you plan on doing your own brake work i would recommend the motive power bleeder. I picked one up and i am able to easily bleed my brakes with just myself.
For bleeding the brakes we used a power bleeder. I don't know if this matters but for the last caliper we had to refill the bleeder (so it looses pressure). All the bleeder valves were tightened at the time, but will that add air into my system? Should I have added the entire bottle? Or does this not make a difference since the valves were closed?
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Old 04-13-2014, 04:57 PM   #15
quazimoto
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Did the master cylinder ever go dry?
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Old 04-13-2014, 05:50 PM   #16
Zomgweee
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Quote:
Originally Posted by quazimoto View Post
Did the master cylinder ever go dry?
Not to my knowledge. But if that's the cause, since it was like this before I bought it, I wouldn't know if the previous owner did or not.
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