What causes the preasure to be non existinng when trying to bleed your brakes.
changed my brake pads, still no
brakes. changed master cylinder, still
nothing. the preasure wont build up
so i cant bleed the brakes please help
Assuming that the brake lines are not leaking and the master cylinder is full of brake fluid start at the right rear wheel and open the bleeder screw. Have a helper press the brake pedal to the floor and hold it there. Now close the bleeder screw. Now have your helper release the brake pedal. Now open the bleeder screw. Have your helper press the pedal to the floor and hold it there. Now close the bleeder screw. Have your helper release the brake pedal. Repeat this procedure until brake fluid comes out in a steady stream. Check the fluid level in the master cylinder often while doing this. Now repeat the procedure at the left rear, right front, and left front wheels in that order. If you have no leaks the brake pedal will come back. This should be done with the engine off. Even if you have power brakes. HTH. -Jim
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