No volts to the fuel pump - Page 2 - JeepForum.com
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post #16 of 42 Old 11-20-2012, 02:12 PM
cruiser54
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87 was the only year that didn't have them from the factory originally.


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

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post #17 of 42 Old 11-20-2012, 02:17 PM Thread Starter
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Maybe i had a 87 the whole time?


Im getting 12 volts here, which i think is terminal 30

image-3456544750.jpg
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post #18 of 42 Old 11-20-2012, 02:24 PM Thread Starter
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Found these two plugs, both on drivers side. Niether of which get voltage when key is turned on. Idk if its related but id figured id give it a shot
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post #19 of 42 Old 11-20-2012, 02:25 PM Thread Starter
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image-1285468768.jpg



image-4182415656.jpg
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post #20 of 42 Old 11-20-2012, 02:30 PM
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Second one is washer bottle level sensor wire.
The ballast resistor looks just like the one in the picture. Sometimes located in the vicinity of the one in the photo.

What's the 10th digit in your VIN number?

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post #21 of 42 Old 11-20-2012, 02:31 PM
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Look on the relay for the terminal designations.

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

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post #22 of 42 Old 11-20-2012, 02:36 PM Thread Starter
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10th digit is an H

Thanks for helping by the way
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post #23 of 42 Old 11-20-2012, 02:39 PM
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H means 87 by the way.

Look at the relay and make a diagram of what each terminal in the receptacle is. Then check it for voltage using my earlier post.

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 #24 of 42 Old 11-20-2012, 03:04 PM Thread Starter
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Quote:
Originally Posted by cruiser54
H means 87 by the way.

Look at the relay and make a diagram of what each terminal in the receptacle is. Then check it for voltage using my earlier post.
Oh haha, i never had a title for this truck and i forget why i thought it was a 88.

Alright thanks for the advice, i will do that tonight if i can get over to the garage
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post #25 of 42 Old 11-20-2012, 06:22 PM Thread Starter
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Big thanks to 97_4Popper. I took the plug that accepts the taillight harness, and found what terminal was the ground. Pushed in a wire in the terminal and put the other side to the chassis. Turned the key and the pump ran!
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post #26 of 42 Old 11-20-2012, 09:08 PM
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Glad I could help.

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
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post #27 of 42 Old 11-21-2012, 04:49 AM Thread Starter
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The pump ran, so im almost certain thats my only problem. I couldn't start it because the battery died( i left the key on). But im gonna charge it and see if it starts today. I will post back with results.
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post #28 of 42 Old 11-21-2012, 01:38 PM Thread Starter
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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
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post #29 of 42 Old 11-21-2012, 02:00 PM
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BTW, have you been over to comancheclub.com?
All the info you ever need to know about these trucks over there.
I am Dadinator over there.

You should be able to get a whole fuel rail with injectors at a junk yard. I did it when I had one leak on my truck.
Good luck with it.

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 #30 of 42 Old 11-21-2012, 02:23 PM Thread Starter
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^ no i havent, im not sure why. Maybe ill do that right now actually.

I have a whole other fuel rail, not sure if its even good, but i could pop it in and check i guess.

Whats everyones thoughts on remanned injectors?
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