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  #1  
Old 09-03-2015, 07:27 PM
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Jeep 4 hole injectors

Hello all!
I've seen a bunch of threads on this topic, but I thought I'd add my 2 cents. My jeep is a 2000 4.0l with 215000 miles I replaced the engine 3 yrs. ago with a used reman with about 80,000 on the clock. Two weeks ago I found 4 of my injectors cracked, 2 of them definetly leaking! So I decided now is a good time to try the injector 4 hole upgrade. I ordered 6 Bosch 4 hole injectors (PN# 028155895) for $60.00 on EBay. I did some research and they were for a 2008 Crown Vic V8. Once installed I instantly noticed a much smoother idle, and a slightly healthier note from the exhaust! On first drive, I was pleasantly surprised at how much power this thing now has! It now launches when you touch the pedal! Hills that I climb on my commute that I used to struggle with, it now walks right up! Bottom line, torque and horsepower much improved!
Now for fuel mileage. My commute is 26.5 miles of hilly, curvy roads with 4 traffic lights and 11 stop signs, and speeds varying between 25 and 50. Before my average mpg was 17.4 , my average now is 19.00 mpg! An increase of 1.6 mpg for 60 bucks! I must admit some of this is due to just having good sealed injectors! I also replaced my fuel pump, fuel filter, can sensor, crank sensor, coil pack, and spark plugs. So I figure some of that may contribute to the increase of mileage as well. However I am completely happy with the swap, the truck is running better than it ever has! Has any one else had similar results?

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Old 09-14-2015, 01:20 AM
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Re: Jeep 4 hole injectors

Dude that is a great discovery. I had mine flowed tested and cleaned but this little secret sound awesome for some added power. I just have my originals. I'll mental note this upgrade for sure should go good with my build


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Old 09-14-2015, 08:41 AM
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Re: Jeep 4 hole injectors

There is a video on you tube showing the differences between the jeep single hole and 4 hole injectors side by side if you are considering the swap. Try typing in jeep injectors to check it out
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Old 05-16-2016, 06:08 PM
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Re: Jeep 4 hole injectors

These work on 4.7?
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Old 05-18-2016, 07:02 PM
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Re: Jeep 4 hole injectors

I would assume they would work! As long as the flow rate is the same 4 hole is better than 1 hole!
I now have a year under my belt with these and still see much better fuel mileage, throttle responce, torque, and horsepower! I went on EBAY to get them! They ended up being cheaper than factory replacements! I am 110% glad I did it!
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Old 05-18-2016, 07:35 PM
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Re: Jeep 4 hole injectors

I need to research if the I6 uses same injectors as the v8
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Old 05-21-2016, 07:54 PM
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Re: Jeep 4 hole injectors

Ok, so i am really having some fun! I got a hold of some av100LL fuel! It is 100 octane low lead air plane fuel! I mixed in 5 gals to a full tank. Now this thing effing launches! Wow! And 22.5 mpg! Hills that I'd drop 2 gears on, i now drop one! Torque and HP is off the hook! By the way I mixed it i figure 93 octane!
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Old 05-21-2016, 07:56 PM
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Re: Jeep 4 hole injectors

Don't knock
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Old 05-21-2016, 08:45 PM
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Re: Jeep 4 hole injectors

No knock! She runs awesome! My god this is a beast! Loving it!
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Old 05-21-2016, 09:23 PM
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Re: Jeep 4 hole injectors

I need to find . injector upgrades for the 4.7
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Old 05-22-2016, 12:48 PM
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Originally Posted by hoffmanestates View Post
I need to find . injector upgrades for the 4.7
99- 03/04 cobra injectors
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Old 05-22-2016, 01:17 PM
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Re: Jeep 4 hole injectors

Seriously?

For mustang cobra injectors
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