brakes go to floor sometimes

Service was performed on the vehicle and an independent mechanic replaced the brake master cylinder. Check for brake fluid leak.

Brake Pedal Goes To Floor When Engine Running How To Fix Road Sumo

- Pontiac 1994 Grand Prix question.

. What is the modelyear of your. Fluid level is fine. This can be due to a number of problems.

Brake fluid leaks and malfunctioning master cylinder. I see no fluid on tires. Pretty scary when not expected.

Sometimes when I go to brake the pedal will go half way down like its suppose to then I feel a release of pressure and it goes to the floor. The most common reason this happens is because you have a leak in one of your lines. As I said Ive had it has been in the shop 2 times in the last 2 weeks to have new brake pads put on and master replaced.

Pressure on the brake fluid cases the brakes to be applied to the wheels. Technically speaking there are only two main causes when your brake pedal goes all the way to the floor. Presuming you have NO leaks in the hydraulic systemit would be a bad brake master cylinderWhats happening isthe piston inside the master cylinder has rubber sealsand when the pedal goes to the floorthe master cylinder is leaking internallypast the rubber sealsIf the brake booster was badthe symptom would be an extrememly HARDunresponsivebrake pedaland.

Sometimes when those seals are leaking if you very gently apply the brakes you can gradually press the brakes all the way to the floor but if you press the brakes very quickly and hard. A little scary when you need brakes and they all of a sudden arent there. The first thing to check when your brake pedal goes to floor is to raise the hood and check the brake master cylinders reservoir.

The system needs bled. Try bleeding the brakes first and see if that cures the problem. One of the more common causes for the brake pedal going to the floor is a loss of brake fluid.

However there are other causes that you also need to be aware of just in case these two main causes are not the culprits. According to the owner the vehicle experienced an apparent loss of brake pressure resulting in the brake pedal sinking to the floorboard before the vehicle came to a complete stop. Only show this user.

When you are ready to leave for work after your car has sat for a prolonged period of time check the ground underneath your car for puddles. A leak in a brake line a loss of pressure within the master cylinder itself due to a failed seal or air being introduced into the braking system. So an interesting braking problem.

If the brake pedal is intermittently going to the floor she should not drive the car at all until it is fixed. If this is such a widespread problem why does GM not recall whatever is causing it. A brake fluid leak is one of the most common reasons that the brake pedal would go to the floor.

Brake pedal goes to floor sometimes only. If the brake fluid is low filling it back up is not going to fix the problem. Maybe it isnt a problem not sure.

Another common reason why your brake pedal may go down to the floor is because you are running low on brake fluid. It has a mind of its own sometimes. When the brake pedal fades it almost feels like the anti-lock brakes are trying to kick in.

When youre out of brake fluid your brakes simply wont work. The brakes on my 05 ZXW with ABS work just fine until Im stuck in traffic. I usually fix this issue with pumping the brakes.

Inside all the brake cylinders that Ive seen the seals around the pistons are like little flaps that expand more the more pressure you apply to the brakes. We just got new pads and rotors. Along with other service.

It also happens to be the easiest to check. Driving a 2007 Volvo S40 automatic transmission. I think it may be normal just that I never noticed it before.

As title states my braking pedal sometimes goes to floor during driving mainly when Im in a traffic jam and using the brakes actively. Possible Causes of the Brake Pedal Going to the Floor. Brake Pedal Sinks To Floor NHTSA Complaint ID.

Up to 25 cash back The brakes sometimes go to the floor before stopping. You should be able to see brake fluid underneath the car if theres a leak in the system. If the reservoir is empty or the brake fluid level is low there is most likely a leak somewhere in the brake system.

It also happened a few times while driving on highway at higher speeds so the first 40-50 of pedal. My brake goes to the floor sometimes i have to pump them for the car to stop. I would also inspect every line to see if there are any leaks anywhere.

Discussion Starter 6 Apr 29 2013. Your first reaction to encountering spongy brakes should be to rapidly pump the brake pedal with your foot. Instead I release pressure just enough to let the car creep until I have to come to a complete stop again.

Just to clarify what are the exact lights youre talking about. The master cylinder is where brake fluid gets compressed. When Im crawling to get into an event or when there is highway construction UGHH my foot rarely leaves the brake pedal.

No brake or fault light. All you have to do is take the lid off of the master cylinder reservoir and check the fluid level. Brake pedal goes to the floor sometimes.

Check the backside of each tire. Brake booster appears to be working and there doesnt appear to be any leaks. This is an intermittent problem.

This is pretty easy to diagnose. My 2011 SRX my brakes go all the way to th floor. Theres one more thing that could be causing the brake pedal to go all the way to the floor.

When it goes to the floor it doesnt stop the vehicle. Update I did a brake system flush and power steeringhydra-boost system flush which it needed bad but no change in pedal operation it still goes to floor if you push a little harder. The more the brakes are used the hotter the brake fluid gets.

It does not do this all the time. Show activity on this post.

How To Repair A Brake Pedal Going To The Floor