Biodiesel causing injector o-ring problems? Hoses in a 96' 7.3l good to go? - Ford Powerstroke Diesel Forum
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Old 01-30-2014, 06:10 PM
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Question Biodiesel causing injector o-ring problems? Hoses in a 96' 7.3l good to go?

I have a 1996 7.3l that I'd like to run biodiesel in. We have a ASTMD compliant source of the stuff near us, so quality shouldn't be an issue.

I asked my mechanic about wanting to switch, and he said the injector o-rings might need to be serviced after to the tune of ~ $500 I think. Something about how they adjust to a certain fuel type, and that the engine can start to run poorly when you switch. Made it sounds like a one-time deal, but something that could crop up again if we switch back to petro on a long trip or something.

Has anyone heard or experienced this before? Anyone out there running B95 in a circa 1996 7.3l with good results?

I'm also wondering if there are any hoses that would need replacement first, and whether I could do fuel filter replacements myself without much experience working on autos.

Thanks!
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Old 01-30-2014, 10:04 PM
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he has a very valid point but your truck will be fine. Changing the fuel filter on your truck is also extremely easy. The only hoses if any that would need replaced would be the filler cap to tank lines as the rest are metal but even the filler cap hose you are talking easily over 1,000 gallons of biodiesel before you would even be concerned to check them.
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Old 01-30-2014, 11:53 PM
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Thanks, erbilabuc. Any idea what the chances of needing injector work after starting bio are?
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Old 01-31-2014, 03:41 AM
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about no chance whatsoever as long as the fuel is clean and from a reputable source
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Old 02-01-2014, 05:23 AM
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Many 7.3's have run hundreds of thousands of miles on good quality BIO with no problems. As long as your sure the Bio you will be using is good quality I wouldn't hesitate to run it. I have been starting & stopping on Bio & have had no problems other then changing the fuel filter which is to be expected.
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