Diesel Doctor

[AFD654]

Hi, I have a 2000, 7.3 stroke and the power steering line has consecutively " blown " the O-ring completely out on the side of the pump. I have had tried to replace it three times now. Same thing...Every time.... It will hold for about an hour, then BOOM! No steering and no brakes. Can somebody help me? Thanks.

One week later.... Still have same problem. Figured out the vacuum line for the brakes is run off of the power steering, but I am still having trouble keeping the O-Ring in the coupling.