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I have a 2000 F-250 and I am having an issue with it and have no idea what it is. It idles fine but once you get going it spits and sputters and sometimes it dies. I am really starting to get upset over it because I have no idea what it is I have an appointment with Ford on monday to do the recall work and I am going to have them do a diagnoses if I cant figure it out by then any help would be awesome and any direction on where to get the parts to fix it would be awesome. I am fairly mechanically inclined so hopefully it is a DIY fix.
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I just changed the oil this weekend plenty of fuel in the bowl it used to go away once warm and only did it like twice in 6 months now it does it every day the CPS is a recall right it is going in for that on Monday
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Also when I start it it lopes really hard like it has a huge cam in it
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Fuel pump might be weak. Could be lots of things.
The cold start romping is NORMAL. Mine does it, a lot do it, most do it. Ford even put out a TSB or something about it. Read this, it explains it. "Ok here goes. Mine does it too. When it's cold (depends on the temp for each truck, mine is a wimp so 35-40 and down is hard), the oil is cold, so thick, so doesn't flow fast at all. Like cold molasses. But when you plug in the block heater, it does just that: heats the block. Which contains oil and coolant as well as the cylinders so everything flows nicely and combusts nicely too. Well on each head there is a high pressure oil rail that feeds the injectors. The rail is only so big so cold oil can only flow down to the end so fast. AND it's a dead head rail, just an end, no loop. Oil enters near the front of the cylinders (#2 on the driver side) from the HPOP and gets pushed to the back (#8). Well in the firing order, #8 is RIGHT AFTER #6. So once 6 fires, it depletes what oil there is in the general area. Since the oil is cold, thick, slow, the HPOP can't push enough oil ALL THE WAY to the back of the rail to the 8 injector fast enough before that one fires, so it gets an incomplete injection. Just a normal engineering hiccup right and just has to be that way right? No. You can either get some synthetic, an oil with a lower weight for the winter, or both. OR you can get a HPO Xover hose. Just bridges the two oil rails at the #3 to #6 cylinder area. So once #6 fires with that thing installed, you have oil coming from the HPOP AND the passenger oil rail to help replenish the rail before #8 fires. Smooths the idle, ESPECIALLY in cold starts. Makes it quieter. Keeps the RPMs very very steady. Had it on a dyno pre and post HPO Xover install. Pre install the RPMs on the comp were varying by about 50 or so. Post instal, didn't move at all. Ok, maybe 2-3." |
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If it was a low oil issue it would not start. When were the fuel filters changed? What kind of fuel pressure does it have? You could also get the codes pulled at AutoZone for free, but the fact it starts and idles fine tells me it is a fueling issue. It very well could be the high pressure fuel pump. Just my $.02
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We don't have a high pressure fuel pump. Have a high pressure OIL pump though.
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I am going to take by Auto zone tomorrow on my way home from PT the fuel pump was my first thought I was just trying to get some ideas of what else it could be. I am hoping that it is something relatively small and not something like a dead cylinder. when it acts up and startts sputtering it sounds like it is backfiring it is hard to explain but it will calm itself down and run ok for a few minuted then start doing it again really gets annoying trying todrive home.
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thwe fuel pump is inline on the frame rail under the driver side right?
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Yea about near the driver seat. If you can hook a gauge up to it, it should be about 55-65 idle and shouldn't drop more than 10 psi at WOT
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