Hi there everyone. We have a 93 3/4 ton suburban with a 454 engine. A few months ago we had a fuel pump go out so we replaced it with the SAME thing. It started acting like it was fuel starved and we were going through fuel like crazy. We searched and found a leak. So we fixed that which included changing the sending unit and lines from the unit to the inline pump. So lines are new as well as sending unit and pump. It ran fine a couple days and started acting fuel starved again. This time it will not climb hills without stalling out. We are at a loss as to what it could be. If you have any answers please let me know. Thanks .