Hi all.  I have a 1995 Nissan Altima.  The brakes
were low sometimes and great sometimes.  The rubber gasket on the cap
on my
master cylinder was tore all to pieces so I replaced that...the brakes
were
great until I turned the car off.   :(  So I decided to bleed the
front brakes
which seems to have only made it worse.  Now I have very little brake.
I
checked the booster for airtightness...all is well there. About the
only
thing I can think of now is to bleed the rear brakes and if they are
okay it
must be the master cylinder itself.  Any ideas?  Also, how do you
bleed the
rear brakes?  Please if anyone can help, this is my ONLY
transportation to
work.  Thank you in advance.  :D