1986 Honda Accord. Brake light is on. I bled system, still have soft pedal. Bench bled and replaced Master cylinder. Now pedal is soft still and I hear air when I push the pedal ( don't remember hearing this before). No obvious leaks, lines are good. Hissing is coming from front right by booster. Also, this is weird, when I push the pedal the idle will go up and down. If I hold down the brake pedal it will push back up on me and rev at the same time.
Is this a bad booster/vacuum pulling from the carb that's making weird idle/soft pedal? Could this correlated? Or did I maybe pull a vacuum hose while replacing (I checked thoroughly) and that's screwing up the idle?
Please ...your advice is greatly appreciated!!!
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