My 83 6.9 has started to need to have the air purged out of the fuel filter before starting all of a sudden. It already has an electric pump from the tank to the filter. It did fail a while ago and I replaced it with one I had that looked identical. The starter also piled up at the same time due to cranking it with no fuel so after I put in the new pump I just bomb started it till I just replaced the starter. Now I’m finding the air in the filter issue. Is there any way the fuel is bleeding back to the tank due to a check valve or something. Maybe the pump that failed had an internal check and the new one doesn’t? Any suggestions are appreciated.