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: I had a new rear brake sensor installed. The braking lights still come on intermittently.

Check all of the sensors and switches on the brake system and make sure all of them are connected properly. Make sure that all of the connections are clean and have no bent or broken pins. The brake warning light...

Q: Is 233133 miles for a dodge ram cab good?

We cannot say whether or not to purchase a vehicle even if we had given it a full inspection. However I believe that this mileage would be considered high for any vehicle regardless of model or year.

Q: Multiple windows not working

Hello. That is a common issue that many owners with your particular vehicle encounter. If all of the windows stopped working at once, it is likely due to a faulty switch or fuse. But if if they stopped working individually,...

Related articles

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...
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.