Unknown issue
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From: Grand Junction
Unknown issue
Hey all I've got an 89 Ford F-150 with the EFI 351W, and I cant seem to get the thing to run properly. I've replaced the fuel pumps (all 3) the fuel filter, the map sensor, the IAC valve, it has new spark plugs and wires, New distributor, ICM, cap, and rotor, new coil. I can get it to run for about 10-20 minutes then nothing. i don't hear any indication that the timing chain is sloppy.
Fuel pressure to start is around 38 psi, then when its running it drops down to 30/32 psi.
I'm out of ideas on where to go next.
Fuel pressure to start is around 38 psi, then when its running it drops down to 30/32 psi.
I'm out of ideas on where to go next.
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