When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Did you leave the cap to the fluid resevoir off for a long period of time. If you did then the brake fluid absorbed to much moisture and has gone bad and theres no way to get the air out of the lines. You will have to change the fluid.