No volts to the fuel pump - Page 3 - JeepForum.com

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post #31 of 42 Old 11-21-2012, 04:05 PM
cruiser54
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Quote:
Originally Posted by JeepComanche89 View Post
Well the ground solved the issue of the pump, but now my injectors are leaking. One was leaking very badly, i replaced it with a older one i had and now its fine. But the others are each leaking slightly. Its bit noticeable until you touch them. Im not sure what to think now, it almost seems as if the rail is not sitting how it should?

I also replaced all the lower o rings on the injectors, and it seems to be leaking in the rail side, but these are a flat type of seal, something i cant seem to purchase
Those o-rings are not square looking when new, but true O-rings. Same as used on millions of vehicles.
The real concern is that Renix injectors tend to leak at a seam and spray gas all over the place causing engine fires. Good time to upgrade to the later, more efficient injectors.


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post #32 of 42 Old 11-21-2012, 04:18 PM Thread Starter
JeepComanche89
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Quote:
Originally Posted by cruiser54

Those o-rings are not square looking when new, but true O-rings. Same as used on millions of vehicles.
The real concern is that Renix injectors tend to leak at a seam and spray gas all over the place causing engine fires. Good time to upgrade to the later, more efficient injectors.
Huh, i kinda thought that, but i put a new o ring on and it wouldent go back in. Maybe i just have to force it with a little oil or something. This might be a stupid ?, but by latter injectors do you mean H.O ones?
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post #33 of 42 Old 11-21-2012, 04:19 PM
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Use motor oil on the o-rings.

www.precisionautoinjectors.com

If you own a Renix Jeep, you'll want to check this out.

An index to over 30 write-ups can be found in the link below

www.cruiser54.com

My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
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post #34 of 42 Old 11-21-2012, 04:24 PM Thread Starter
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Ok, and thanks for the link, i would still be buying comanche ones correct? Bosh vs. OEM
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post #35 of 42 Old 11-21-2012, 04:29 PM
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Ok, and thanks for the link, i would still be buying comanche ones correct? Bosh vs. OEM
Yes. Tell them what you have and they will match up later model 4 hole injectors for you. Easy.

If you own a Renix Jeep, you'll want to check this out.

An index to over 30 write-ups can be found in the link below

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post #36 of 42 Old 11-21-2012, 05:07 PM Thread Starter
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Quote:
Originally Posted by cruiser54

Yes. Tell them what you have and they will match up later model 4 hole injectors for you. Easy.
Awesome thanks for the info. Lets hope thats the only issue haha
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post #37 of 42 Old 11-28-2012, 07:09 PM Thread Starter
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Ok, i got the remanufactured injectors installed today. And that solved the issue. It still wouldnt run but i found out it was just the crank positioning sensor was not plugged in. It started for the first time in almost two years!
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post #38 of 42 Old 11-29-2012, 02:55 PM
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Sweet. Good Job.

90 MJ 4.0 4X4 5sp LB Pioneer Big Ton.
Truck contains parts from 3 MJs, 2 XJs, 1 TJ and a dishwasher.
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post #39 of 42 Old 11-29-2012, 05:28 PM
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Make sure the wires for the ckp don't rub on the exhaust.... I managed to ruin a new sensor that way.

Jeeps 4 Life!
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post #40 of 42 Old 11-29-2012, 05:50 PM Thread Starter
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Quote:
Originally Posted by DeejayZeejay
Make sure the wires for the ckp don't rub on the exhaust.... I managed to ruin a new sensor that way.
I assume your meant to type cps, crank positioning sensor? And thanks you, i made sure no wires were near the exhaust or block when i put it in, but i will defiantly double check before i drive it.
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post #41 of 42 Old 11-30-2012, 06:15 AM
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good call.
I didn't do that years ago when my son owned the mule. He got about 3 miles before the wires burned through on the exhaust.

Had to splice and relocate. Oops.

90 MJ 4.0 4X4 5sp LB Pioneer Big Ton.
Truck contains parts from 3 MJs, 2 XJs, 1 TJ and a dishwasher.
http://img.photobucket.com/albums/v1...IMG_0101-2.jpg
Check out comancheclub.com...
My build thread: http://comancheclub.com/forums/viewt...hp?f=7&t=27756
Wifes: 97 TJ 2.5 4X4 5sp 31's stock. . . Slow but; reliable.
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post #42 of 42 Old 11-30-2012, 09:52 AM Thread Starter
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Yeah i have to do the same for the o2 sensor. I had to lengthen the wires because i have a pacesetter header and the sensor threads in the after the y pipe. Im thinking of going over the trans with it wrapped in loom, any thoughts?
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