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Discussion Starter #1
I'm replacing my fuel injectors and can't figure out the trick to remove the fuel rails and the wiring harnesses on the fuel injectors. It's a 2012 and no matter how I position the wires or fuel rail I can't get them to come out. I've tried unplugging the first injector but have failed at getting the plug off. I can't believe how tight they have everything crammed in the little gap. I've found a couple of videos and threads that mention doing it is tricky and a pain but offered no detail. the shop manual offers no insight.
 

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Yes it is very difficult. You need to get all of the pugs off the injectors first. That is a trick in itself. I used an Allen wrench to reach in and depress the clip and a flat screw driver to pry at same time. It is ridiculous and frustrating.
 

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Once you have all the plugs off you remove the wiring harness from the rail and then you can wiggle the rails out.
 

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Discussion Starter #4
Thanks for the reply. I spent several hours trying to figure it out. I couldn’t figure out how to get the plugs off. Tried screw driver and a pick with no success. I’ll try again tonight with the Allen wrench. I figured it had to be unplugged first. In my frustration I ordered a new wiring harnesses for each side in case I damaged one getting it out. They were only $20 each +shipping so I planned on cutting them out once I verified they were the correct harnesses. A little extreme but my frustration level was a little above normal. Is the reassembly any easier as long as you keep things tight? I assume you work from the firewall to the front? Thanks again
 

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No because I have not got my injectors out. They are stuck in there. So I am a ways away from putting it back together.
 

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2013 F150 Screw 3.5L Ecoboost Oxford White
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No because I have not got my injectors out. They are stuck in there. So I am a ways away from putting it back together.
Did you get a slide hammer? You guys are making me really glad that the dealership is doing mine. I knew they were going to be trouble.
 

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Discussion Starter #9
The slide hammer and tool cost from what i've seen is about $200 so I'm hoping I can get mine out without it. I would still like to hear from anyone that has had a successful reinstall.
 

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2013 F150 Screw 3.5L Ecoboost Oxford White
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Do you have Autozone in your area? Or any auto parts stores that do loaner tools? You should be able to get a slide hammer from them as a loaner.
 

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Discussion Starter #11
They have the slide hammer but not the fancy "tweezer/wheel puller" tool that fits under the injector flange to pull it out. I'll for sure call around my area to see if anyone has a loaner before I buy one.
 

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I had to do the head on my 2011. I could not get the injectors out even with the head on a bench. I sent it to the machine shop and they got them out.(do not know how) But when i reassembled the head the o-rings leaked so i had to take them out and reinstall them. getting them out was difficult i just needed to unclip the harness from both rails move one out of the way and wiggle the other past. It definitely a pain, reinstalling was not as bad.
 
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