Brother-inlaw and my-self bled all lines thoroughly from back to front, no air in lines, replaced all fluid, brand new cylinders & calipar. Brakes want to hugg alittle then release after a short distance or lifting the back side of brake peddle....thinking other solution my be a NFG master cylinder.
David
Bleed them more you still have air in the line. and bleed all brake lines front and back.if after that no pedle could be a bad mast er cylinder
All brake parts and fluid are new, when only lifting brake peddle or a quick tap on the brake peddle the issue seam to dissipate(disappear) for some reason.
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SOURCE: 1986 gmc sierra 1500 front rt brake locks up
check brake lines they may have gotten pinched very commonok new c/k trucks when you crank the torsion bars up to far you may have hit something and pinched the brake line check those before messing with the master cylinder those are a real pain
SOURCE: bleed brakes but no pedal
Good! You bled the master cyl. before installation! The proper order of bleeding the lines, is to start with the wheel the greatest distance from the master cylinder. Then work your way to the next greatest distance, and last, the closest wheel. Make sure all air is removed from the lines before you proceed to the next wheel, and frequently check the master cyl. level, because, as I'm sure you know, if you **** in air at the master, you have to start all over again. I'm assuming you don't have a power bleeder, so with a helper do this with car running (make sure it's on safety stands and not going to fall on you!) Pump pedal 3 times, no need to mash the pedal into the floor, just 3 pumps 1/2 way down, hold 3rd pump at half way down level while bleeder is opened, when flow is about to stop at bleeder, close bleeder and repeat til no evidence of any air. Let me know how it goes and if you need any help.
SOURCE: ABS alarming after I replaced rear brakes shims, bled brakes etc.
try rebleeding the brakes. any air whatsoever will set off the abs light sometimes it takes a few times to get it all out even though they feel good. also make sure the fluid is full that will also set off the light.
SOURCE: stuck calipers
Brake lines are not releasing fluid back to master cylinder. Open bleeder and see if wheel will turn. If it does replace brake line to caliper
I just went to Brake Masters this morning and had them replace the Master Cylinder since I was experiencing the pedal very spongy and going to the floor. When they replaced the Master Cylinder and they gave me back the car, the brakes were still spongy and going to the floor. I addressed this to them and they took another look at it, but when I took it for a second time, the brakes were extremely spongy. It was almost like they gave me back my car in worst condition to when I brought it in. Can you help?
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