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ok i have an 89 ford f150 with a 300 6cyl and a c6 transmision. and the truck won't start. i have gotten it to start and idle ( lots of ##### around and fijiting turning the key on and off over and over again switching back and forth tanks) and i can floor the accelerator and it reves up no problem put it in gear and it stalls. i have replaced the highpressure pump and i am getting fuel at the top of hte engine but it still won't start and run. i have replaced the computer and didnt' help any sugestions.
have checked the fuel presure it is like 16 psi which isn't what the manual sez but the ford technician said that thats right around where they run( i have a friend that works at a ford dealer so i got it done for free)
[font size="1" color="#FF0000"]LAST EDITED ON 29-Mar-01 AT 10:47 PM (EST)[/font][p]16 psi? Is that on the rail? Has anyone replaced the fuel pressure regulator, or the fuel filter? Try the fuel filter route first and see what that gets you. I have the 300 fuel pump in my truck, and it runs upwards of 45-60 psi. For my 302 swap I left the 300 pump in the truck! Plus that way if I want to do more mods, I don't have to change the pump out.
1988 F-150, SWB, 5.0 EFI (formerly 4.9 EFI), M5OD 5 speed, 3.08 gears, Summit shorty truck headers, Custom built Flowmaster exhaust system. Force 4 LP6000 lightbar, Federal signal PA-300 100 watt siren, Icom IC-V100 50 watt mobile radio.
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1965 F-100 (just purchased 1/18/01), SWB, 390, C-6 auto. Dual exhaust, Not much else to do to it.