fuel problem on 1997 Chevrolet 1500 Pickup

my fuel pressure is low at schrader valve,can this be caused by regulator? or just the fuel pump?

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer 1 comment
Either could cause the fuel pressure to run low.
at the schrader valve that is between the fuel pump and regulator?