Q: Replaced master cylinder, bled all four sides pedal still goes to floor HELP 😔

asked by on

First thank you for your time. No original problem, Replaced the all calipers and when doing that didn' t close one of the valves and it leaked out and dried the master cylinder. Well I ordered another one just in case so it arrived today after 8 weeks uuugghhh and have bench bled the cylinder , test drove it pedal is going to the floor. Last night bled all 4 sides again and still no hard pedal. Any help suggestions would be greatly appreciated. Doing anything I can to keep from taking it to the shop.

My car has 100000 miles.
My car has an automatic transmission.

If you have clean brake fluid at the wheels after following the proper bleed sequence, I would try bench bleeding the master cylinder one more time and bleeding at the wheels afterwards.

If you still don’t have a proper brake pedal, you probably have a defective master cylinder. While it doesn’t happen often, it isn’t unusual to get a defective part right out of the box whether new or rebuilt.

I suggest getting this checked out by a certified technician, such as one from YourMechanic, who can diagnose the issue with your brake pedal and help you fix it accordingly.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Replaced master cylinder, bled all four sides pedal still goes to floor HELP 😔

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: Car self-accelerates intermittently

Hello. The odor of oil is merely coincidental to the symptoms you report. Any vehicle of that vintage is going to have multiple oil leaks unless the engine has been re-sealed or re-built. Just be sure the leak is not...

Q: My vehicle is awd was towed on a tow dolly from the front is awd something snapped off from rear axle and leak oil how bad is the

Based on your description, I do not think that the vehicle was placed in neutral before the tow took place. If the vehicle is all wheel drive, this likely caused severe damage to the rear axle and possibly the transmission....

Q: Had crankshaft sensor replaced, and car is still stalling when slowing down.

Hello, thanks for writing in. If the engine is only stalling when coming to a stop, then it may be a defective crankshaft sensor that was installed or commonly this is caused by a dirty or failing throttle body. I...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...