I did mine a couple weeks ago using injectors from a Jeep Liberty 3.7liter V6. I have a 1990 XJ. I used this thread to inspire me to do the job as I have never worked on the fuel rail before. I also did a YouTube video to accompany this thread. http://www.youtube.com/my_videos_edi...id=Izj6q6o59L4
After everything was all said and done, I would add an asterisk on step #6, disconnecting the fuel lines. In my FSM it states that whenever the fuel line is disconnected, the o-rings should be replaced. I would recommend you have the o-rings on hand PRIOR to starting the job. I had a thread going over here with details on the o-rings; http://www.naxja.org/forum/showthread.php?t=1086841
Did you need resistors to run the 3.7l injectors? And which wire to which wire when you rewired to run them? I got a set from a 02 and they have been soaking in seafoam for months lol. I forgot about them
Dukie...thats a different brand at a minimum also your XJ is a 95, not 96-98...did you buy yours from Precision?
No, I grab mine directly from vehicles in the junkyard. I've rebuilt about 10 sets for people - both the 703s (for 87-99 4.0s) and 784s (for 00+ 4.0s). Brand should not matter the upgrade comes from those 4 holes in the tip. If you don't have the 4 holes, you got screwed. Period.
1995 XJ Cherokee Sport
4.5" Homebrew Lift, 4.0L HO I-6, AX-15, NP231, D30(Open)/C8.25(Locked)
33x12.5 Mickey Thompson Baja MTZ Tires, 283,000 mi and runnin' strong
Thanks a lot for the post, I cleaned my injectors and fuel rail yesterday with a can of SeaFoam Deep Creep and a tooth brush, the fuel rail spewed out some nasty looking brown gunk thanks to the Deep Creep and the injectors had slight carbon buildup on the tips, I do notice a small improvement in acceleration and idle but nothing major as its just the same injectors just cleaned. I may buy some flow-matched refurbished 4 hole injectors from a guy on ebay but its $170 for 6 and I'm not sure if its worth it.