[quote=Stevo;2095946]
Quote:
Originally Posted by LuckyEddie
Check the booster for being full of fluid from the bad previous master cylinder.
Robert[/QUOTE
Good idea, We are going to think about it over the week end and hit it again Monday.
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Take a good look at the O-ring between the Master Cylinder and the Booster as a source of a Vacuum Leak.
Last year I installed a rebuilt Master Cylinder (Kragens Auto Parts). After installation the pedal was kind of spongy and went down further than I would have liked before it started braking.
Over the last 1 1/2 year I have tried bleeding the system 3 times with no improvement. It was not good but dependable until last Monday when the pedal went almost to the floor. (Of course I so far cannot find the receipt to get an exchange under warranty.)
I decided to install a new Master Cylinder instead of a rebuilt. I now have an excellent pedal function an braking.
My problem all along was the poorly rebuilt Master Cylinder.
If bleeding the system 2 times does not cure the pedal "fade" I would suspect the Master Cylinder even if it had been recently replaced.