low brake pedal - nothing fixes it??
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low brake pedal - nothing fixes it?? - 6/2/2006 11:21:05 AM
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willrace4food
Posts: 20
Joined: 6/2/2006
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I have a 89 GTi that I just put on the road for the summer. Ever since I bought the car I have an issue with a low brake pedal which despite my best efforts, I cannot get right. The previous owner had replaced the rear prop valve and when I bought the car I assumed it just needed a good bleeding but that didnt seem to work. The car had larger 10.1" front rotors and calipers which I thought may have been the culprit due to the larger caliper pistons not getting enough fluid flow from the mc - I went back to the 9.4" for reasons other than this, pedal was still the same mush as b4. Tried all sorts of bleeding, no luck. So I tried replacing the crappy aftermarket varga mc that was on there with a new oem unit, still no change. I am at wits end with this car - it is perfect except for a mushy pedal!! I am now considering buying a power bleeder to see if I can fix it - I am 90% positive the culprit is air somewhere in the rear lines...there are no visable leaks, the car has ss hoses, a new 20mm mc, everything has been rebuilt or replaced - there is no reason why the car shouldnt have a firm pedal....someone please tell me what I am doing wrong or how I can fix this - should I go to a 22mm mc? get a power bleeder? drive it off a cliff? please help
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Mike
1989 Volkswagen GTi
2001 Dodge Neon ACR
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RE: low brake pedal - nothing fixes it?? - 6/2/2006 12:15:59 PM
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Jsd
Posts: 368
Joined: 9/20/2005
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If the brakes WORK, don't be so picky. Mine does the exact same thing. It's mush, but my brakes work just fine. I've noticed, the smaller the brake booster the mushier a pedal gets, I honestly don't know. I hate it as well but i've done almost everything to my own brake system and can not get a firm pedal. As long as you don't lose fluid, or brakes, don't worry about it.
-Jeff
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NOS is for cowards.
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RE: low brake pedal - nothing fixes it?? - 6/2/2006 12:35:30 PM
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willrace4food
Posts: 20
Joined: 6/2/2006
Status: offline
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They WORK!!! just to stop hard you have to put it about to the floor!!! I cant really heel and toe with it cus the pedal goes down so far, just bothers me...this is my autox and track car, I kinda like a good pedal for racing - If i do find a way to fix it I be sure to let you know so you can get yours right...I havent given up yet 
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RE: low brake pedal - nothing fixes it?? - 6/2/2006 1:25:47 PM
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Jsd
Posts: 368
Joined: 9/20/2005
Status: offline
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Yup same, I have to put it to the floor and I HATE it but i've learned to live with it, unfortunately. I wish it was something simple like expanding flex hoses or something. I'll keep on it as well and hopefully one of us can resolve this annoyance.
-Jeff
_____________________________
NOS is for cowards.
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RE: low brake pedal - nothing fixes it?? - 6/8/2006 6:53:23 PM
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stv fox
Posts: 49
Joined: 6/6/2006
Status: offline
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how about the master cylinder do you have abs brakes there is a different bleeding prosses for those are the pads and shoes far away from the caliper and drum. is it a vacume booster any vac leaks if you turn off the engine how much brake assist do you have should be about 3 aplications. are the rotors the right size for the caliper to big will cause the problem some thoughts anyway
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RE: low brake pedal - nothing fixes it?? - 6/15/2006 7:01:38 PM
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stv fox
Posts: 49
Joined: 6/6/2006
Status: offline
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I just learned bigger brakes need a bigger master cylinder to create propper pressure
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