I have an 86 F350 Dually. Now I'm not a stupid person but I am a bit confused on where to start troubleshooting. The brake fluid leaks out of the top of the front bowl in the master cylinder. I assume from what I have been able to find that the front bowl is for the front brakes. I do not have any pinched lines and am wondering if the something may be clogging that front bowl. Any advice would be great.

Thanks.

 

If you are unschooled on brakes, this is the wrong vehicle to learn on. Find a good brake shop.

Brakes working? Can you lock the wheels or activate the abs?

Let your fingers do the walking, check with BBB or friends, then, depending the answer to the above questions, drive or have it towed to the shop....

jmo, ymmv.

 

You should stop now.
The front "bowl" is for the rear brakes.

 

bad master cylinder.