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Fuel injectors and corresponding cylinders

14K views 3 replies 3 participants last post by  6.7 Powerstroker  
#1 · (Edited)
Good evening all and Happy New Year!

I have a 2011 f250 with 210,000 miles. Over the summer I had an injector go bad.. I swapped it out and all was well for a month or so. Then I got 2 more cylinder contribution codes within a week or so of each other. I decided I was going to replace all 8 injectors because of the mileage.

I pulled the old injectors last night and took them to Ford this morning. The service guy said they needed the box's from the new injectors for the old (core) injectors to send them back. So we unpacked each box keeping the contents separated. Now I am ready to install and I cannot figure out which injector goes where!!

I know that cylinders 1,2,7,8 take a different injector than cylinder 3,4,5,6... I don't know how to differentiate between the 2 different injectors. Any help is greatly appreciated!!

All injectors show BC3Q-9K54 6-AD... after that I don't know which number or letter to look for to tell the difference between the 2 types. I do notice that 4 of the injector serial numbers start with 36 , the other 4 start with L6. Not sure if that is any indication.
 
#2 ·
#4 ·
All the actual injectors are the same. The only difference is the hard supply lines. Right down the IQA numbers and make sure you are careful when you take out the old injector to get the copper crush washer and don't drop it under the valve cover. You'll know what I'm talking about when you get to it. I just did all 8 and it wasn't too hard. Also when you remove the injectors return line plastic fittings use some pliers and pull up on the outside and be careful. Find an easy one to see and look at closely to see how it will pop up.