Hello there, I have a 95 b18c del sol. It's leaking brake fluid. I checked all the bleeder, visual inspection to see any external leaking but I couldnt find anything. Any suggesion?

 

refill the fluid reservoir, get the car up in the air, start it up and pump the brakes. You'll find the leak eventually, just make sure the reservoir stays full or else you'll end up pumping air out of the hole in the brake system and you won't find the leak. That's sort of a 'durrr' moment.

 

Check where the master bolts to the booster. Pretty common for the master to leak and it runs down the front of the booster under the master. Look for peeling paint on the booster

 

Like this............

 

Do you have a flare wrench set? I would tighten or check all of the fittings, lines, bleeders, and proportioning valve.

Some Home Depot's carry this set.

http://www.homedepot.com/p/Husky-SAE...W6PC/203541511

 

you might also double check your proportioning valve to see if there's seepage from in between the two halves of the body.