Brake Pedal Malfunction A Guide to Understanding and Resolving

Your brake pedal is spongy because the master cylinder can't maintain pressure. Sometimes it's because other parts in the system have failed. Try replacing the brake fluid, check pads and discs etc. Sounds like old, spongy fluid to me. If your brake pedal goes all the way to the floor even with a full brake fluid reservoir, it indicates a problem within the brake system itself. The symptoms were the pedal just going to the floor with no resistance, but I could pump it and get back what felt like full control almost right away. Before we go into more detail, if you're stuck at ... floor and use the ball of your foot to apply firm, steady pressure on the brake pedal. The technician didn't bleed the brakes after he swapped the master. He said he was going to do it, but forgot. Yet I got the car back and ... Some things I would check: 1. Is the fluid level dropping in the reservoir? Check for leaks throughout entire system. 2. Look at the fluid in the reservoir and ... Only go out if necessary. Even if you can drive well in bad ... floor and use the ball of your foot to apply firm, steady pressure on the brake pedal. The brake booster or master cylinder might be going out. Look around there and make sure the vacuum hoses going to the booster are good. We'll learn why we might have a mushy brake pedal when the motor is running and how to fix it so we can have full power brakes in this post.