Hi,

I had been experiencing a loss of brake fluid from my master cylinder reservoir for a while. So, two weeks ago, I had my mechanic look things over and he replaced a brake line that he said was leaking. Today, I got in my car and the brake indicator light had come on again. I checked the resorvoir and it was low . So, I pulled the brake line covers (guards) off and my dad looked at the lines while I pushed the brake pedal. No apparent leak. Also, I pulled all four wheels (looking inside the drums in the rear), and also no apparent leaks. And, there is nothing evident under the hood at the master cylinder or inside the car near the firewall that I can see. Do you all have any ideas on why the reservoir is still losing fluid? Thanks a lot,

blackdog48
P.S. One other brake line is pretty rusty, so I will replace it, but even it did not leak during our tests.

 

Sounds like the mechanic didn’t properly bleed your brakes, causing air in the system and/or that rusty line is leaking. Re bleed the brakes

 

That is what I have come to believe as well White_EG1. Thank you

blackdog48