I replaced my front brake pads on my gt-four, I forced in the pistons one at a time, I dont know if that caused an issue, I bled the brakes today, got out all bubbles. Went for test run, and same thing. Long as I'm driving below 5000rpm its fine, as long I give it some beans the pedal with sink right to the floor and barely slow down with a swervy feeling. Please someone help me

to clear up some thoughts, I bled lines completely and also did a master cylinder test, xhut off engine, apply pressure to brake pedal, and it does not sink, there is enough fluid in the resovoir, I just dont get what could be the problem, unless air have gotten into the abs system somehow. :S

It shouldn't have caused an issue, i've done mine a couple of times, using a clamp to force in one side at a time and I've never had a problem.

Did the resivour overflow when you pushed the pistons in? It's possible forcing the fluid back has dislodged a seal somewhere.

>

Yeah, the reservoir did over flow. But why does it brake perfecly fine when kept under 5000rpm? No matter how fast i go

>

Im not sure but it could be your brake booster going out. I had a civic with the same thing happening. I replaced the brake booster and it was back to working condition.

>


I managed to get it slightly better I pushed in two pistons at a time bleed off the fluid that was forced, I was able to get some bubbles out, brakes is now performing better, but not back to normal, will try doing this to all four calipers instead of just the front and see if it solves my problem completely

I took my exhaust off same time I changed the pads, I put it back on yesterday, I disconected the battery for about an hour or so. I put back up went for test drive, my brakes is back to perfect :S I have absolutely no idea why this would happen. Because I didn't touch anything brake related. But happy that they are working as they should again.. thanks for all the help and suggestions.

maybe if your exhaust was disconected it was heating up the brake lines?

>

It was disconnected, at the back, right where it points up over the subframe, but there are no brakes line where it was pointed.