no brake fluid leaking when bleeding and changing rear brakes

2005 CHEVROLET MALIBU

115,000 MILES • 3.5L • V6 • FWD • AUTOMATIC

OLIVIERANDERSON

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When pumping brake pedal to make the fluid out theres nothing coming out, everything was wprking well before i removed the brakes and changed them, 1 problem i put direction fluid into the brake fluid reservoir by mistake. Plus i changer the whole caliper and disc?

Jun 14, 2015 at 8:20 AM

SQM

CERTIFIED EXPERT
6,383 POSTS

Hello,

If wrong fluid gets put in the brake system, it can severely damage the internals of the master cylinder. The seals can be damaged and will not produce pressure when applying the brake.
If you happen to put in a petroleum-based fluid like power steering fluid, it will do permanent damage to the brake system. Especially the master cylinder.

https://www.2carpros.com/articles/how-to-replace-a-brake-master-cylinder

Since no fluid pumps out it is likely that the seals of the master cylinder are bad and it is not allowing any pressure build up and you are unable to bleed the system.

https://www.2carpros.com/articles/how-to-bleed-or-flush-a-car-brake-system

I have attached diagrams for your reference.

Please let me know of any questions.
Thank you.

Images (Click to enlarge)

Oct 9, 2021 at 10:47 AM