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I have a '95 f150 5.0L. When I go to start it slow starts...will skip a little then turns smooth for like 4-5 seconds then just turns off like it has no gas. I've tried putting the gas to the floor when it turns smooth and it's sound fine and revs smooth too...yet still turns right off, like someone turned the gas off. I checked the inertia switch, I got a Fuel pressure tester and it's sits at like 32-34ish even stays there when it turns off. It's weird...It just started over night. I can't really get it to run so i can't take it too get it diagnosed...Just wonder if anyone has heard of it before I have to just have it towed and pay out the *** to have it fixed.
it could be some type of alarm system...i know the older fords you need to unlock the passenger door first then the drivers...that disables the alarm but that doesnt sound like your issue...check the crank sensor
2014 F150 XLT Supercrew 5.0 (ALL the options)
1968 Ford Thunderbird 2dr Landau 429CID V8 1 of 950-Weekend Toy
Oddly enough my wife parked to close to it and when I checked with the fuel pressure tester my buddy turned the key for me through the passenger side, so that's how I unlocked it. But I do know what you are talking about, my dad has the same year model and his alarm goes off a lot while we are working because of not unlocking the passenger side first.
I think your right, I was searching and someone one here said it should hold between 45-60psi. Does that sound correct? Since I said before my dad has the same truck basically, I'm going to go over to his house and use the tester on his truck to see if I get same results. Could the fuel filter bring the pressure down that much or would it more likely be the fuel pump going out?
For some reason 55 sticks in my head but without the specs. I can't be sure. Fuel filter could drop it and its easy to replace. Yours is a 95. The fuel system is different from my 88 in that there is no DFR and no high pressure frame rail pump and a single tank. Maybe one of the gurus on 95s will chime in.
__________________ November 2011 TOTM Winner, 88 1/2 ton swb 4.9 4spd man 4wd 3.55 gears, Rear Aussie Locker,Pro Gold 11" Luk clutch, 4" Rancho Lift, 2" body lift, 35" Maxxis Bighorns on Ultra Wheels, Rocksolid front Winch Bumper, 10k Engo Winch, 2.5” exhaust, Magnaflow muffler, 38 gallon Spectra rear tank, Bushwacker Flares, Warn premium hubs, FSB Transfer case skidplate, Knuckle under mod, 3G 160a Alternator mod.
Well I went out to try again to get a really good reading, so it was not just a 32-34ish and upon turning the key first it went to 10psi stopped, turned it off then tried again got 18psi stopped, again went to 28psi stopped and that's the highest it would go. So I do think it's something in the fuel system. Where would u guys suggest I start first? I don't want to just change everything unless it is everything. Is there a way I can check one thing over the other to rule out what it might be?
or perhaps your injectors are clogged up.if so,go buy "fuel injector cleaner" at family dollar/dollar general for 2.50 (cheap and worth it).You may need to buy it 3-5 diff times but in the end,worth it.talking from experience.
always stick w/the cheapest route first for testing the prob out (buying new fuel filter,getting codes,checking spark plugs,etc)
-Gimmie fuel,gimmie fire,gimmie that which i desire!-