Did you bleed the master cylinder before installing it? It can be very difficult to get air out of the system if not bleeded correctly. If mc did not come with its own bleeding kit, get a master cylinder universal bleeding kit(autozone, o'reilly's, etc.) that includes several plastic fittings for different brands and some clear hoses. install the fittings in the mc and attach the hoses. put the other end of the hoses inside the reservoir, put brake fluid to the reservoir and pump the piston against a vertical surface or wall while keeping the mc horizontal, leaning your body weight on the mc assembly. Keep doing so until you see only fluid without air comes back to the reservoir from the mc fittings. Install it again and proceed to bleed the system starting from the furthest wheel to the mc, working your way to the closest wheel. The wheel bleeding procedure is as follows: have someone depress the brake pedal five times and hold the pedal depress, while another person opens the caliper purge valve. Repeat this operation until only fluid comes out. Do the same to the rest of the wheels. Watch the reservoir level during the whole procedure, since you'll be loosing fluid. Thank you
Did you bleed the rear wheels or just the front
air still in the system possibly in the master cylinder
SOURCE: replced front brake pads and calipers adjusted
Bleed the master cylinder first. You have to do that before you belled any calipers or wheel cylinder.
SOURCE: brakes
Flexible brake lines are probably balooning out causing pressure not to build up, replace flexible to the calipers.
SOURCE: 92 dodge van rear ABS-brake and ABS lights on/can't reset?
Its probably how your bleeding your brakes, but first make sure the bleeding nipples are facing upward. You should bleed diagonaly, front pass wheel then rear driver wheel. Then front driver wheel and rear pass wheel. The abs light has its own computer your have to get it scanned to clear the codes and turn off the light
SOURCE: replaced master cylinder, front brake calipers and rear calipers,
BY TRUCK HAVING ABS BRAKE.YOU NEED A SCANNER TO BLEED BRAKES THE SCANNER HAS TO RESET OPERATION OF THE BRAKE HYDRALIC SYTEM BEFORE YOU CAN BLEED SYSTEM.
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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