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Re: Another 7.3 IDI "No Start"
The only thing the wire on the top of the IP does is energize the FSS (Fuel Shutoff Solenoid) so that it opens and allows fuel to flow through the IP.
I have a couple guesses.
One is that you have a bad connection to the FSS or resistance in the circuit to the FSS. Even low voltage will make it hard for the solenoid to open. But once it is open it takes less power / voltage to keep it open. Check your battery voltage, then check the voltage at the FSS wire. It should be within a few tenths of a volt.
Second possibility is that the fuel you picked up had some crud in it that has gummed up the IP and FSS.
I don't believe the IP itself is the problem as playing with the wires wouldn't change the IP internal clearances etc.
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1985 International rollback, 6.9L 5 speed "Li'l Big Truck"
*ASE Master Certified, Medium & Heavy Trucks*
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