Your car's brake system may not be building pressure due to air in the brake lines, a leak in the system, or a problem with the brake master cylinder. It is important to have a professional mechanic inspect and repair the issue to ensure your safety while driving.
Air will compress under pressure, hydraulic brake fluid doesn't. Air in the system will give you a spongy peddle because of that.
Hydrolics and all things that run off of Hydrolics
Anti-lock Brake System.
what causes air injection system pressure to be stucked in cars
In all cars and most trucks HYDRAULIC pressure is used to apply the brakes. In an air brake system such as is found on medium and heavy duty trucks the air is actually released to apply the brakes.
Because if you were to fill your brake system with gas, every time you press your brakes, the gas would compress and provide inadequate pressure to the brake pad. Liquid, on the other hand, needs substantially more pressure to compress and is thus more suitable.
That is brake fluid. The brake system uses hydraulics to apply the brakes.
The backing place is located behind the brake pads on some cars and behind the brake shoes on all cars. It prevents debris from entering the brake system.
Newer cars have a Power Brake Booster (or Power Disc Brake system). This system adds hydraulic pressure to the brake system, so when you push the brake pedal, it increases the pressure on the brake pads with hydraulic power. When the car is off, you loose the additional power provided by this hydraulic system. The brakes still work, you just need to push harder. Typically after the engine cuts off, the first time you press the brake it is somewhat normal (hydraulic pressure still in the system) but after that, the pedal becomes harder to press. It is the same concept with Power Steering - you have hydraulic assistance with the engine on, but none with it off (turn the key on without the engine on and turn the wheel - it is possible, just hard).
modern cars have a brake pressure equalizer on them. sounds like this valve is not working correctly.could also be a bad caliper on that wheel
The brake system is important to keep maintained. A diagram for the brake lines in a 1992 Paseo can be found in the cars manual for maintenance.
This will 100% depend on what make and year the car is, but I will give you a few examples. Before 1967 most cars had no brake fault warning light. In 1967 cars were required to have "Dual Circuit Hydraulics" this system allowed the Manufacturers to build a simple Hydraulic balance switch mounted beside or under the Master Brake Cylinder to operate the brake system fault light. Usually has a single wire run to it. The system in place since 1967 is still used, but most cars have brake fluid level sensors and Anti Lock Brake computers that also turn on the brake fault light.