See full version: What causes all four brakes to lock up
can a bad master cylinder cause brakes to lock up? The master cylinder houses a complex series of valves and seals. If any of these are not in place correctly, or able to move as they should, this can cause brakes to lock. Calipers in a disc system could cause the brake drag because they become stuck in a position with the brake pads applied to the rotors.
But if the booster is getting stuck in its boost mode, it will continue to apply force to the brakes, even after you release the pedal. And it's not unusual for a faulty booster to stay on after a full stop, and then release itself. Then, the next time your brakes lock up, pull over and disconnect that vacuum hose. here
Also know, will a bad brake booster cause brakes to lock up? more
Hold your foot on the brake pedal in case your car's anti-lock brake system (ABS) decides to kick in. Pump the pedal to build up more pressure. Slow your vehicle even more by applying the parking brake (if below 40 mph).
I believe it's brake caliper cylinder or brake guides that's stuck. I'd go with: here
It sounds like something is preventing the piston in your brake master cylinder from returning all the way to its home position. [links]
I have a Honda accord 2008 which has performed well until recently. On my may to work I noticed my car wasn't accelerating as usual; it had this feel like it was dragging. On parking, I noticed smoke on my left rear tire. However, i thought nothing of this.
This could be caused by something getting in the way of the pedal, preventing it from coming all the way back up. It doesn't take much, either. Just a fraction of an inch (a few mm) off its normal resting point and a bit of pressure will remain in the brake lines after each pedal depression. A dozen times or so, and your brake pedal will become quite hard, and the car will drive like it's tripled in weight. Make sure there's nothing blocking the brake pedal (loose wire, etc.); make sure the brake light switch that's mounted to the pedal bracket hasn't worked loose.
Any ideas on what might have gone wrong?
One of the main issues with the parking brake for owners is corrosion. When the parking brake is not engaged on a regular basis, it begins to corrode. Shielded cables are especially vulnerable because water and road debris gets trapped in the outer shell. You won’t realize there is a problem until you need the brake, which is why regular inspection is important. It is also recommended that you use your parking brake every time you park to keep it in working order.
The typical parking brake has fewer components than the main brake system. They include variations of the following: more
When a vehicle’s gear shift is put into Park position, a parking pawl is engaged in the transmission. This is a pin that locks the gears into place to prevent them from rotating. The pawl stays in place until the gear shift is moved out of the Park position. The problem with relying on this mechanism for the vehicle is that it puts stress on the transmission constantly, which can result in eventual failure. Manufacturers recommend engaging the parking pawl after using the parking brake. The brake provides additional security and reduces the amount of stress on the transmission and driveline components to prevent costly repairs and parking failure. more
Most modern applications of the parking brake is to ensure that a parked vehicle stays in place, especially on hills and other declines. When engaged, it locks the wheels in place and works with the parking pawl to ensure that the vehicle doesn’t roll away. While a parking brake isn’t required to be engaged for the vehicle to stay stopped, it works to prevent your vehicle from rolling, especially on steep inclines, and to reduce stress on the transmission. This is why manufacturers recommend using the parking brake even when the driver doesn’t feel like he or she needs it.
The original designation for a parking brake was to stop the vehicle if the main brake system should fail, which is why it was known as an emergency brake. In modern vehicles, the emergency brake isn’t very effective at this task because it cannot adequately stop the vehicle with the small amount of force applied. The parking brake is connected to the rear brakes, which do not exert as much force in braking as the front brakes and will do little to stop a vehicle moving at high speeds.
Because not all braking systems are identical, the differences impact how the parking brake works. Vehicles with automatic transmissions often have parking brakes with automatic releases while some later models require the main brake pedal to be depressed before the transmission can be switched out of park. Anytime Drive or Reverse is selected on the automatic transmission, the parking brake is automatically released. Older models would only require the gear shift to be moved without pressing down on the brake pedal. here
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