Skip the auto shop - Our mechanics make house calls

Q: no brakes at all

asked by on

When i press on the brake pedal, the pedal goes all the way to the floor and the brakes do not engage. So if the car is in drive, the brakes will not press into the rotors. I replaced the brake master cylinder and bench bled it. I have bled the lines at the wheels as well. If I take the calipers off of the rotors and press the brake pedal the calipers will move out like there supposed to. But on the car, they don't have any pressure to stop the rotors. Could this be air in the ABS or a bad ABS module? Is there a way to test the ABS module without a scan tools?

My car has 131000 miles.
My car has an automatic transmission.

A: There is no way to activate the ABS bleed f...

There is no way to activate the ABS bleed function without a scan tool that has the ABS bleed function capability. Not all scan tools can do this. You most likely do have air trapped in the system and the only way to get it all out is to put the ABS in the bleed setting. You may have to use a pressure bleeder to push enough fluid through and push out the air. If you’d like assistance, a certified YourMechanic technician can come to your location to perform an inspection of your brake pedal issue or help you bleed your brakes.

Was this answer helpful?
Recommended services
Get a Quote

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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

Get a quote

What others are asking

Q: Feels like rideing on a ridged motorcycle

You could have seized shocks or binding suspension components. You may need to disconnect the shocks and check to see if the suspension moves freely or the shocks are binding the suspension. If after disconnecting the shocks the suspension does...

Q: Multiple pressings to prevent brake pedal going to floor

A failing master cylinder can cause the symptoms you are experiencing. A technician can attach a clear hose to the bleeder of one of the calipers and examine the volume of brake fluid while applying the brake pedal to estimate...

Q: Turn signals not flashing

Hi there, It's not very uncommon for both tail lights to fail at the same time. However, the water or condensation inside the tail lamp may indicate a larger problem. If you replace the light bulbs it could cause an...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...