Engine boggs down when i excellerate at highway speeds on 1998 GMC 1500 Pickup

This problem is very intermiting no code or ck engine light i have replaced battery,ALT, TPS DID MAJORTUNE UP HELP BEFOR I PUT HER OUT OF HER MISSORY

Asked by for the 1998 GMC 1500 Pickup
A friend had a similar problem. It was a fuel pressure problem caused by either a weak pump or clogged filter.