Power Steering 76 Camaro

Just got this car little over a month ago, and trying to work out
the bugs. Power steering has now gone out, and I never had much
problem with this before on any vehicles. Pump looks fairly new,
no leaks, fluid level is correct. I am assuming it can only be the
pump or the power steering gear box. Don't know if pump can be
tested or not before going out and getting a new one. Could the
gear box just go bad? Like I said, never a power steering problem
before on anything except hoses. Any suggestions would be appreciated.:confused:

Problem description is vague to say the least. Tried to bleed the system? Start the car and turn the wheel full left too the stop hold for a sec. Do the same to the right, too the stop and hold it a sec. That will bleed it then come back and give a better description of the problem at hand. Probably get more information that way.

Thanks, I will bleed system and let you know if this corrects problem.

Bleeding did not help. A new rebuilt pump solved the problem. The pump which
was taken off looked very new with stickers still on it. Guess a person just can't
go by looks.