I just replaced the two front calipers on my Optima, and I have a hugely squishy pedal. I bled the two front lines, and when I do, the driver side comes out yellowish and flows smoothly, no air bubbles.
Let me go back a little bit. The reason why I am changing the calipers is that the passenger side front seized up and was causing an annoying sound, which is why I was changing them. Got a good deal on some Raybestos calipers so decided to change both fronts.
So when I did the caliper that was stuck, as soon as I removed the brake line off the back of the caliper, the piston shot out of the caliper and a ton of fluid leaked all over the damn place. Now I am trying to bleed the line, and at some points in the process, foamy, yellowish fluid comes out. At other times it doesn't look like anything is coming out. Then again at other times it looks like a clear fluid is coming out with air bubbles.
I had the wife inside the car, and would turn the bleeder valve a quarter turn, and have her press the pedal. I then closed the valve and had her release the pedal, then went through the process over again. I did it for quite some time and couldn't get any yellowish liquid out. The bottle I was using (connected to the bleeder valve with a vinyl line) was about 1/3 full when I started, and now its about 3/4 full. Some of that came from the driver side.
I am at a loss, if I should continue to bleed that side or try something else. I am open to suggestions. All the parts came off and installed easily, that was a huge plus. If only they worked. I don't want to have it towed to a shop if at all possible.