In the very near future I will be replacing all 8 injectors on my 2006 Ford F-250 6.0L. The truck is out of warranty at 150,000 miles. The truck's symptoms are lack of power until warm, misfires until warm (even in warm temps), hard starting condition, excessive smoke, raw fuel odor. If you don't mind, I have several questions I would like to post before I start tearing into this project. Over the last several weeks I have been using the search feature for the answers to these questions, but I'm stumped! Thanks PS.org
#1: Could someone please forward me the Ford shop manuals for this procedure? It would be greatly appreciated!
#2: Do you recommend also replacing all 8 glow plugs considering the mileage on the engine and the inexpensive part cost? Also consider that I will have many components out of the way already.
#3: If yes to #2, could you please confirm I have the correct Ford P/N for the 2006 6.0L glow plugs? The P/N I have is 4C3Z-12A342-AA.
#4: Diesel Power Magazine recently stated in an article that the '06 model year 6.0L commonly experiences failed o-rings on the oil rail plugs. My question on this is two-fold; A: Will I even be removing the oil rail plugs to replace my injectors, and B: Do you recommend replacing these o-rings "while I'm in there" for peace of mind? Please also note that this truck does not currently experience the symptoms of a failed oil rail plug o-ring, AFAIK. Please see this link from Diesel Power Mag: 6 0L Ford Power Stroke Engine Oil Rail Plug Photo
#5: What is the correct fuel pressure PSI? I have searched high and low and have not had any luck finding this.
#6: Finally, are there any other "while I am in there" items that I may be forgetting? I am really trying to do my homework on this before I remove the first bolt, so as to address any other items that may become an issue in the future.