Skip the auto shop - Our mechanics make house calls

Q: No brake fluid to back brakes.

asked by on

Changed driver rear caliper on the truck and went to bleed the brakes and no fluid came out. Tried the passenger side and the same thing happened there. Went to the next step and undone the line from the dividing block at thw rear axle and no fluid came out. Worked my way to the next block and the same thing no fluid. Finally got to the master cylinder and undone the line there and not wven a drop came out for the MC for the rear. Went ahead and tried the front line from the MC and fluid came out. So im womdering if the MC could of went bad and how do i know for sure thats what is causing no fluid to go to the rear brakes.

My car has 300000 miles.
My car has an automatic transmission.

If you disconnected the line from the master cylinder and no fluid comes out when pushing the brake then the passage inside the master cylinder is blocked. You should replace the master cylinder and bleed out all the brakes using clean fresh clean fluid.

Was this answer helpful?

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: what does it mean when you let off brake and you hear a click

You are hearing the shift lock solenoid that unlocks the shifter so you can get the car out of park. This is normal. The solenoid is not as noisey when the solenoid and mechanism is newer but may be a...

Q: Starts for a second, dies, and won't start again unless you disconnect battery.

Hi there. The symptoms that you are having seems to be with a faulty PCM (powertrain control module, computer). If you are able to reset the computer by disconnecting the battery, then restart the vehicle, there is an issue with...

Q: Timing kit squealing after new one was installed

It sounds like something might have been misaligned or not installed correctly during the previous service. I would recommend retracing your steps to see if any steps were not done properly or if any steps were missed. I would go...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.