Q: abs light on brake line broke have been replace I bleed brake line but brake pad still go to the floor now wheels lock up

asked by on October 08, 2016

The wheels lock up when in drive or reverse abs light on don't no it there still air in brake line causing the abs light to stay on or it may be speed sensor or the brake booster brake paddle go to floor all new brake and new brake fluid

My car has 152234 miles.
My car has an automatic transmission.

Hello. If the brake pedal is going to the floor then that means that it is not building pressure. If the brake system has been fully bled and there is no air in it then most of the time it is a bad master cylinder or it can be caused by a bad ABS module. If the brake fluid was low and if air got into the system then the only way to properly bleed it is with a scan tool that would allow you to open and close the valves in the ABS unit. Air gets trapped in these easily if the brake fluid gets low. This can also explain why the brakes are locking up. I would usually use my scan tool to bleed the system out first before going any further. I would also scan the brake control module to see what it is reading as a fault. If there is no air in the system and if there is no prominent code then I would replace the master cylinder first. If you want to check out why your brakes are locking up, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair this.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I navigate through the Uplevel Message Center?
Your truck has a helpful tool called the Uplevel Message Center. This message center logs many of your vehicle's functions and displays them for you to use. There are many features to see in the Uplevel Message Center. To navigate...
How do I open the hood?
Opening the hood is very easy: 1. Pull the hood release handle, which is to the left of the steering column. This will release the hood latch. 2. Run your hands under the hood, near the center of the vehicle,...
Shaking when accelerating and slowing down but not cruising at a constant speed
Shaking or vibrating may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) may cause the engine idle to drop below the...
no heater
The lines to the firewall could be hot and yet the heater control valve (https://www.yourmechanic.com/services/heater-control-valve-replacement) is not admitting the heated coolant to the heater core in the dash. So, you want to inspect that valve and make sure it is...
My husband has a 2004 ford f150 and the radio clock light is dim when headlights are off what could be the reason
Hi Adrian. Most of the time, this issue is caused by one of two things. Either the electrical relay that supplies power to the radio is faulty or the radio itself has an interior electrical issue that's causing the light...
I just did a pre-purchase diagnostic on a 2010 LR2 with 106.5k miles, which turned up no problems except "seepage" between the mot
Hi there. I haven't laughed this hard in a while....thanks for the "can this marriage be saved" line. But, your spouse does have a point. A Land Rover with any indication of seepage or a seal being damaged is a...
My car won’t start. There is a red flashing light, car with key symbol. No noise is made when I turn key. Just had it checked
You should not have two programmed keys on the same keychain. If that does not work then you have a problem with the anti-theft system or the key programming. The system can only be programmed using the factory level scanner....
My car is smooth when it turns on and shakes while driving, what can it be?
Shaking of the vehicle can, of course, be suspension related so be sure to rule out faults there as a cause. If the engine itself is shaking or vibrating, the usual causes are problems with the motor mounts, engine imbalance...
I have a check engine light and it reads code p1727 on a bmw 2008 328i convertible
OBD-II diagnostic trouble codes do not and, indeed, cannot identify failed parts. Once you have a trouble code in hand, what you have to do is perform a diagnostic. In the course of that diagnostic individual parts are tested often...

Related articles

5 Essential Things to Know About Your Car’s Anti-Lock Braking System (ABS)
Most Most newer vehicles come equipped with anti-lock braking systems, also known as ABS, in the vehicle. ABS helps to prevent the vehicle from skidding and helps the driver to maintain control when applying the brakes. Here are the 5...
How to Add Brake Fluid to Your Car
Car brake fluid is necessary to keep your car brakes working properly. Check brake fluid condition and top it off if it's low or discolored.
How to Replace a Yaw Rate Sensor
Yaw rate sensors monitor traction, stability, and the anti-lock braking system to alert you when the car tilts at an unsafe degree.