Injector Swap Writeup for the 4.0L - Page 4 - JeepForum.com
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Unread 02-16-2012, 12:01 PM   #46
dukie564
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Quote:
Originally Posted by wsar10 View Post
so whats the diff. between 703's and 784's ?
the connector style
Quote:
Originally Posted by wsar10 View Post
do I need ? (93 5spd)
703s
Quote:
Originally Posted by wsar10 View Post
what kind of pricing are we talking for this mod ??
about $70
Quote:
Originally Posted by wsar10 View Post
Can I rebuild my OE injectors with a 4 hole parts kit ??
no, you cannot take them apart like that

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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
http://www.jeepforum.com/forum/f22/project-danger-cart-xj-1297118/
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Unread 02-16-2012, 01:30 PM   #47
wsar10
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thanks for the response......

Are yours still working as originally claimed ??
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QUOTE=billzcat1;wsar10 is right on point on this oil thread - as usual. Anyone reading this would be well-served taking his advice.


-03 WJ laredo 4.0 120k a few minor mods
-93 XJ 5spd, 3" zone lift
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Unread 02-16-2012, 01:32 PM   #48
dukie564
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yup - they work great!
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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
http://www.jeepforum.com/forum/f22/project-danger-cart-xj-1297118/
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Unread 03-31-2012, 01:24 AM   #49
PFCLinscomb
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1994 YJ Wrangler 
 
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Can you shoot me a link for the ones i need for a 94 YJ Wrangler?
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Unread 03-31-2012, 11:03 AM   #50
Steev89
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Thank you! Awesome write up plan on doing this soon hopefully, your write up should make it about 100% easier since ive never done any work with fuel injectors lol
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Unread 04-02-2012, 11:18 AM   #51
dukie564
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Quote:
Originally Posted by PFCLinscomb View Post
Can you shoot me a link for the ones i need for a 94 YJ Wrangler?
94 YJ will use the same injectors as the 87-98 XJs - the *703 injectors
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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
http://www.jeepforum.com/forum/f22/project-danger-cart-xj-1297118/
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Unread 04-03-2012, 09:11 AM   #52
TheIceMan
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Are the neons a 4 hole injector also or are they just 1 hole??
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Unread 04-03-2012, 09:18 AM   #53
dukie564
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yes 4 hole
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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
http://www.jeepforum.com/forum/f22/project-danger-cart-xj-1297118/
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Unread 04-26-2012, 05:59 PM   #54
TheIceMan
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Not hard to do, just did mine and a vast improvement in idle and response..
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Unread 08-13-2012, 11:16 PM   #55
jakecarder
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Subscribed page saved. great write uo. used it today to diagnose cylinder one missfire. switched injectors between one and two
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Unread 08-14-2012, 08:37 AM   #56
dukie564
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nice!
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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
http://www.jeepforum.com/forum/f22/project-danger-cart-xj-1297118/
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Unread 08-14-2012, 10:15 AM   #57
AmbuGrl
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I did mine last weekend. It was pretty simple and I have noticed a huge difference with it. At idle, acceleration as well as gas mileage. In the past few weeks my mileage dropped from a leaky (#6) injector. Mine is a 98 and we had clips, I left the fuel rail attached at the hard lines and flipped it around to be able to remove each injector. To remove the injectors and the rail, I found it easiest to stand on the drivers side and pull evenly until each one 'popped' out.
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WTF is Clockspring??? my Jeep has digital clock
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Unread 08-14-2012, 07:33 PM   #58
robinz
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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/watch?v=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

Last edited by robinz; 02-19-2013 at 09:48 AM.. Reason: update YouTube link
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Unread 09-04-2012, 09:50 AM   #59
breakpoint
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My '01 4.0L Grand has been generating cylinder misfire reports for the last year. We've swapped the coil pack, but I've been thinking that it may be bad o-rings on my injectors.

Would cracked rings generate misfire codes?

Thanks.
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Unread 09-04-2012, 09:54 AM   #60
dukie564
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bad orings are most likely not the cause of your misfire code.

clogged injectors however might be. It'd be worth taking them out and soaking them in seafoam overnight and clean them up, then re-installing them with new orings.
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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
http://www.jeepforum.com/forum/f22/project-danger-cart-xj-1297118/
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