early 99 runs fine then chugs and dies - Ford Powerstroke Diesel Forum
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Old 07-22-2008, 07:07 AM
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early 99 runs fine then chugs and dies

it all started when i ran some bad wvo in the truck. i went to the walmart parking lot and drained the whole tank of diesel and wvo in the drain. i went and bought a gallon of peanut oil and poured it in her. she ran fine and i filled her up of diesel. she ran good for about 2 weeks. now she will run fine then loose power and chug and i can hear a almost whooshing sound under the hood. at times it will idle and run fine and ill be doing 65 on crusie and she will slowly die down and then just die and wont start for about 5 mins then will run terribly and chug and will build up rpms but will barely move. the other day this happend when i would cut on the ac it had such a strain on the motor it would die. im on my fourth forty dollar fuel filter within 3 weeks. please help. i have read error codes and i have 1249 0475 1211 0470. i also have superchips and 4 inch exhaust. i believe all the error codes relate to those mods.
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Old 07-22-2008, 07:07 AM
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bump please help need truck to get to work
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Old 07-22-2008, 07:32 AM
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bump bump bump
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Old 07-27-2008, 07:05 PM
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just rolled other truck need help now

bumpbumpbumpbump
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Old 07-27-2008, 07:16 PM
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im not sure , but im wondering about the screens in the tank , maybe they have gotten clogged , p1211 can be from a tuner , but can also be caused by low fuel pressure
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Old 07-27-2008, 07:20 PM
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thats what i think
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Old 07-27-2008, 07:21 PM
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i believe from what ive read thats where i would start
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Old 07-27-2008, 07:23 PM
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yea i guess i need to drop the tank
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Old 07-27-2008, 07:52 PM
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Are you running WVO in a separate fuel system (e.g. Vegistroke) or are you putting straight into your stock tank? I know some people are doing that and totally trashing their engines. You end up building up carbon in your engine because the oil is not burning properly because it is not viscous enough. But I'd probably start by checking into the fuel pressure issue too. As far as I know there are no screens in our fuel tanks if they are stock (I've got an early 99 too) so I would not be real eager to drop the tank. I would take a look at your fuel pump (right under your driver side seat on the inside of the frame rail) and take off the outlet fuel line, have a buddy turn your truck to on and see what if the pump is pushing fuel hard or not. You'll want to make sure you do that in an area that you can spill some diesel and use a big oil pan or something for the turning the pump on part because it'll should shoot out of there pretty good. You could get your hands on a fuel pressure guage and check your pressure at that same spot. Should be between 45 and 57 (I think) according to the Chilton manual. Once you've got that figured out you can fix the pump issue or move on up the line and see what your injectors are doing. If you've been changing out your fuel filters its probably going to be a problem beyond that like your injectors or maybe even your hpop. Whats your mileage?
On a side note you really should not drain your diesel into a drain in a parking lot, its a really irresponsible thing for someone to do and could get you arrested.
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Old 07-27-2008, 08:36 PM
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it was all wvo
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