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2007 50MPI stallstarting issue

dvan1901

New member
"New to the forum; hope to lea

"New to the forum; hope to learn a lot and contribute as I learn.

I have a 2007 5.0 MPI with 38 hours. The boat has two gas tanks; generally I run one tank until it gets low, then switch to the other so they get about the same amount of use. I have always added stabilizer to the fuel at the end of each season. This year, I had run the boat off of one tank for about a month, ran great, no problems. Two weeks ago I switched to the other tanks and ran it for about 10 minutes, no problem. On Sunday, I started the boat and let it run for about 5 minutes; temp looked good, oil pressure looked good. Then, all of a sudden it sputtered and stalled out. I was able to restart it, but it only ran for about 5 seconds and died again, then I was not able to restart it; it will crank, but not start.
I have replaced the fuel filter and water separator (Gen III canister style); both were fairly dirt. I put 5 gallons of fresh gas back in the original tank, but no fire. Today I checked the fuel pressure and it was zero. When I turn the key to "on" I do hear the fuel pump spin up. I'm just not sure what else to check at this point; looking for ideas. Thanks!"
 
"Do you have an electric fuel

"Do you have an electric fuel tank selector valve? If yes, try to bypass it w/a rubber hose and clamps to the tank w/fresh gas."
 
"Tried that too, nothing. Whe

"Tried that too, nothing. When I pulled the new filter, it was dry so either the fuel line is clogged or the pump isn't pulling gas. I'm going to fill the filter reservoir with gas to "prime" it and try it."
 
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