I just finished bleeding my 05 automatic FF brakes using a one man bleeder kit. Started with RR, RL, FR, FL sequence. Drums in the rear bled fine, and FR was also ok. When I got to the last caliper, I noticed lots of air bubbles after opening the bleeder nipple and pressing the brakes 3-4 times. Kept replacing reservoir and never let it run dry and kept pressing brakes to try and let all air out. I finally stopped when it seemed like no more air was in there and put everything back together and topped the reservoir. I took it for a spin and brakes do not seem any tighter although they do stop. I also noticed a hissing sound when I depress the brakes when I am in P, but can't hear the hissing once I start driving. Anyone know what this may be caused by? Is there still air in the system? Should I re-bleed from step one? Any help will be greatly appreciated!