changing injector o-rings - Ford Powerstroke Diesel Forum
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Old 02-02-2008, 09:48 AM
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changing injector o-rings

i was wondering what signs would indicate that i need to change these and how hard are these to change? any help would be appreciated. thanks
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Old 02-10-2008, 11:52 AM
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their not that hard to change. Just be careful not to damage the electrical connections under the valve cover like I did. Their is an exellent thread on how to change out injectors.
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Old 02-10-2008, 11:57 AM
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how would i go about finding that thread?
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Old 02-10-2008, 12:11 PM
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a sign is, lots of smoke on cold starts. poor fuel milliage, and fuel in the oil
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Old 02-10-2008, 12:17 PM
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ok thank you
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Old 02-10-2008, 12:18 PM
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^ Agree'd... I'm going through the same issue but I also have a bad knock associated with that. I know I need to replace my injectors, but I also need to determine why they failed - more the likely low fuel pressure.
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Old 02-10-2008, 12:20 PM
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I need them., but luckly i dont have a knock.. thank god. I think the injectors are still wokin, but the orings gotta be shot due to my 10mpgs
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Old 02-10-2008, 12:22 PM
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Do remember, anything you try on your truck is on you - following a DIY this involved is entirely at your own risk.

Here's the link.
1999-2003 Ford 7.3L Powerstroke Injectors
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Old 02-10-2008, 12:23 PM
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Quote:
Originally Posted by cchase View Post
I need them., but luckly i dont have a knock.. thank god. I think the injectors are still wokin, but the orings gotta be shot due to my 10mpgs
It's a fortunate failure... I was going to do them - but during the summer.

My truck will be mucho faster
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Old 02-10-2008, 12:35 PM
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Ah. I am trying to wait for spring/summer too!!! i hope this doesnt bit me in the a$$ too! I hsold my edge to pay of gauges and programing to get the injectors. so I just got the gauges. but being stupid i spent the chip money on the 07 conversion. so now im waiting a week to buy the chip, so I am loooking at early spring. plus i plow and cant have my truck apart when snows coming
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