Injector Question
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New User
Joined: Dec 2008
Posts: 20
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From: Medina, TX
Injector Question
Getting ready to do head gaskets & studs and going to replace all my injectors while I'm in there. Do all the needed o-rings come with the injectors? I ordered motorcraft injectors from Tousley and it looks like they have two o-rings unstalled on the injectors. Parts guy said they come with necessary o-rings, but I want to make sure before I get in there. Thanks in advance for your help.
Elder User
Joined: Jul 2012
Posts: 834
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From: tonopah, az
why replace all injectors? are they all bad? have you checked the ficm for correct voltage to the injectors? the o ring sets from ford are about 5 bucks each iirc. you have any codes that would lead you to replace ALL injectors?? I dont believe i have ever read on here that all injectors were bad. most likely the injector is not the root cause of an issue
Postmaster
Joined: Jul 2005
Posts: 3,956
Likes: 6
From: Abilene, Texas
As stated above they come ready to install.
IMO, your doing the right thing. I always try to replace injectors in a set. Well I shouldn't say always. Just depends on the situation, but most of the time I recomend doing all 8 at once.
IMO, your doing the right thing. I always try to replace injectors in a set. Well I shouldn't say always. Just depends on the situation, but most of the time I recomend doing all 8 at once.
Logistics Pro
Joined: Dec 2004
Posts: 4,138
Likes: 7
From: South Weber, Utah
How many miles are on your current injectors? They were designed to go 250,000 miles. I would get some sort of fuel pressure monitoring solution and do the fuel pressure regulator blue spring upgrade.
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New User
Joined: Dec 2008
Posts: 20
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From: Medina, TX
Thanks for thre replies. Its one of those things where I was pretty sure I was right, but wanted to put my mind at ease.
I have 170,000 on the truck, monitor fuel pressure, have the blue spring upgrade, FICM voltage is fine and have two bad injectors with a third showing signs of going out. I see no reason not to go ahead and replace the all the injectors while I am in there. I really don't want to have to tear into this engine again for a while if I can help it.
I have 170,000 on the truck, monitor fuel pressure, have the blue spring upgrade, FICM voltage is fine and have two bad injectors with a third showing signs of going out. I see no reason not to go ahead and replace the all the injectors while I am in there. I really don't want to have to tear into this engine again for a while if I can help it.
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