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Old 02-13-2010, 11:22 AM
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Help!! 7.3 Major Oil Consumption!

A frient has an '03 7.3 with around 250k miles. He says it runs perfect, no smoke or miss but uses 3 gallons of oil in 50 miles! He may drive 500 miles with no oil consumption, then next 50 mile drive it may lose gallons. No visible leaks or anything. Please help, because he is now afraid to drive anywhere! Thanks
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Old 02-13-2010, 11:42 AM
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If it isn't leaking, it's eating it. Maybe injector related?
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Old 02-13-2010, 12:10 PM
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does it smoke at idle or under throttle? Not black smoke, white or grey smoke. check the tail pipe, does it feel sticky inside like it has a residue? also, you sure no leaks? check under the rear of the truck it may have been pushed back there with the wind from driving.
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Old 02-13-2010, 01:26 PM
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He says only normal light smoke under throttle (fuel I am pretty sure) and no signs of leaks...
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Old 02-13-2010, 03:43 PM
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Is there any chance that this may be caused by bad turbo seals?
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Old 02-13-2010, 03:53 PM
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Yea but it would be coming out of the tail pipe as residue or smoke if it was turbo seals or injector related. There HAS to be either leaks or smoke/residue. I don't see any other way there isn't.
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Old 02-14-2010, 07:11 PM
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It was suggested to look in the fuel filter bowl for engine oil. If oil is in the fuel bowl, then it is likely injector o-rings. There was, so now my question is- Is there a write up or video on how to remove the injectors and replace the o-rings?
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Old 02-15-2010, 02:05 PM
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I think theres a write up in the tech files. look in that section.
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Old 02-15-2010, 02:09 PM
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3 gallons in 50 miles?? these trucks only hold a little under 4
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Old 02-21-2010, 05:21 PM
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Late 99 F-350

Atest to that my truck started that after a head on crash. Trying to find the problem myself. Shop give me a list that cost 2400 and I found nothing on it fixes my problem. Still searching
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