I'm happy to report replacing the rear brake fluid is all it took. I just got a 2' section of 1/4" clear tube from Napa and a can of DOT4. Very little air came out and the fluid is only slightly darker then the new stuff. So I'm kinda surprised I lost all brake pressure from this. But for $6 I'm happy I didn't have to dig deeper into my wallet or tool chest to fix the problem.

BTW, I think the 1/4" was too wide, I had to zip tie it on. Will look for 3/16" next time.

 

Well, that was easy!
Good job.





But you missed a chance to add a new tool to the chest . . .