Hydrogen filled accumilator???

[toy-runner]

I have a 2001 4 runner, because 01-02's have different brake systems, is the accumilator filled with hydrogen? If so, i think I might've released the air. Is there anyway to fill this accumilator back up? Car has been down for 2 months now. Do not want to take it to the dealer which would be a $3000 fix. Any help would be greatly appreciated.

 

[Jungoes]

hydrogen??? highly unlikely , pure h2 is explosive ,

 

[FdcCal]

What makes you think so? This is a complex assembly, many things could be wrong..What is wrong??