I've got a 1997 F150, 5.4 motor. Went to crank it the other day and the starter was working but it never would fire. I got some starting fluid, sprayed it in the intake, and then cranked it, hoping to confirm or deny that the motor wasn't getting fuel.

It cranked and surprisingly stayed running. This has me baffled. If the fuel pump was bad, shouldn't it fire up for a few seconds and then die once the starting fluid is burned up?

I also checked the fuel pump relay and the inertia switch and they seem to be fine. No fuses are blown or anything. I'm trying to eliminate anything I can before I drop the gas tank and pull the pump


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