Injector Swap Writeup for the 4.0L - Page 5 - JeepForum.com

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post #61 of 180 Old 09-05-2012, 07:14 PM
misterdent
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Killer write up! hadn't really considered this until I read this article but I now know that it is doable and my birthday is next month!

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post #62 of 180 Old 09-05-2012, 10:07 PM
RedRyderXJ
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Killer write up! hadn't really considered this until I read this article but I now know that it is doable and my birthday is next month!
Super easy and super effective...
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post #63 of 180 Old 09-06-2012, 07:36 AM
NLRSgt
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Good write up...will do it soon.
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post #64 of 180 Old 09-06-2012, 02:58 PM
j_bydesign
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Garage
did they ever put the 4 hole injectors in jeeps as a stock oem? if so what year did they start?

http://www.jeepforum.com/gallery/dat...s/S5002031.JPG

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post #65 of 180 Old 09-06-2012, 03:00 PM Thread Starter
dukie564
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I believe Jeep still uses 1 hole injectors to this day

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, 309,000 mi and runnin' strong
http://www.jeepforum.com/forum/f22/p...rt-xj-1297118/
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post #66 of 180 Old 09-09-2012, 12:24 AM
DoctorTim
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i need to do this, awesome writeup

http://www.jeepforum.com/forum/f11/96-xj-build-hybrid-1311863/

96 XJ, geared, 8.8, 5", 33s, dash
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post #67 of 180 Old 09-09-2012, 03:32 PM
Jeepinphily
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Really helpful write up. I'm new to the XJ and just figured a rough idle was something I'd have to take for granted but this is super helpful and makes it easy for a noobie! Thanks a ton
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post #68 of 180 Old 09-09-2012, 09:35 PM
AmbuGrl
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This isnt the only thing that could cause idling problems. I had no idle problems even with a leaking injector, my idle probs were from melted and broken O2 sensor wiring.

- HM1(SW/AW)Ret USN Dec 23,1992 to Dec 31, 2012

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WTF is Clockspring??? my Jeep has digital clock
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post #69 of 180 Old 09-11-2012, 10:58 PM
misfit77
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I swear that earlier this week Five0 had Bosch injectors for our stock 4.0 engines for $46.....Can't seem to find them now.

Anyone know where to buy more or have any experience with the Bosch from FiveO?
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post #70 of 180 Old 09-12-2012, 12:19 PM
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First page listed on google when I searched "Bosch fuel injectors jeep Cherokee". I think they were third down on the page. $46 per injector
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post #71 of 180 Old 09-12-2012, 01:35 PM
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Holy...Google gets me there, eventhough I was at fiveO and did a manual search. Very interesting!

thanks Jeepinphily.

Notice the site keeps referencing it as a "set"? seems too cheap to be $46 for all 6, seems to expensive for one.
I will call them later this week.
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post #72 of 180 Old 09-12-2012, 01:50 PM
Wrenchands
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Nice write up. Looks like I have another project to do.

TNT 5.5", 35 x 12.5 MTRs on Trail Ready Beadlocks
Armor: 2x6 inch 3/16 tube rockers, Factory Front and Gas Tank skids, Homemade Mini Skids, Riddler Differential Covers, and Homebrew Hybrid cage.
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Rhinolined entire Exterior black, and Herculined interior.
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post #73 of 180 Old 09-17-2012, 07:11 PM
bobcat05
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Great write-up, changed my 2000 XJ's a few weeks ago, idle and acceleration have improved, but I needed to reset the PCM as suggested. That solved the MIL from coming on, but after a week of driving I've been having difficulty starting after it's been driven and parked for a few hours. Has anyone else experienced starting problems? To get it started I have to pump the gas pedal while turning the key. Could this be related to injector #3 need a heat shield? I had to replace the fiber tubes and used the old ones after the swap.
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post #74 of 180 Old 09-17-2012, 10:50 PM
RedRyderXJ
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Quote:
Originally Posted by bobcat05 View Post
Great write-up, changed my 2000 XJ's a few weeks ago, idle and acceleration have improved, but I needed to reset the PCM as suggested. That solved the MIL from coming on, but after a week of driving I've been having difficulty starting after it's been driven and parked for a few hours. Has anyone else experienced starting problems? To get it started I have to pump the gas pedal while turning the key. Could this be related to injector #3 need a heat shield? I had to replace the fiber tubes and used the old ones after the swap.
See if swapping the old ones back one at a time helps... Doesn't sound like a heatsoak issue if its just long to crank, heatsoak would cause it to like sputter start almost
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post #75 of 180 Old 09-21-2012, 06:31 PM
misfit77
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Looks Fine-0 changed their pricing. Cheaper to go with Prescision.
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