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Unread 07-08-2008, 09:40 PM   #1
parpac316
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replacing fuel pump on YJ

How hard is it to replace the fuel pump on a 95 wrangler? I think mine is going out. I can hear it making noise for the last week and it seems to be getting worse everyday. Can anybody point me in the right direction?

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Unread 07-08-2008, 10:41 PM   #2
paultyler
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You have to drop the fuel tank. It is inside the tank with the sending unit. I think it is a big enough pain in the butt that you should consider having a mechanic do it. But if you don't mind the work, run the tank til its empty so that it is lighter when you remove the tank, remove the bolts that hold the tank in place and lower the tank. The pump and sending unit attach on the top of the tank and sit inside it.
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Unread 07-09-2008, 02:12 AM   #3
Scott93yj
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Not to bad, just did it myself. took about an hour. Make sure what kind of gasket you have for the sneding unit. If it is the square one you will have to order it from the dealer.
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Unread 07-27-2008, 08:56 PM   #4
sandersc
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Speaking of the fuel pump, I started my Wrangler and heard a steady pitched relatively high humming sound coming from near the gas tank. Could this be a bad fuel pump? Any other ideas? The Jeep seems to run fine.
Thx!
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Unread 07-27-2008, 11:00 PM   #5
havasu
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SANDERSC,

Possibly, but before you drop your tank and replace the pump, when is the last time you changed your fuel filter? If it hasn't been done for awhile, and you have a restriction, your pump could be screaming for help. Also, you have fuel return lines back to the tank and can get clogged up, making a strange sound. When all else fails, yes, it might be time to replace the pump. Also, don't forget to replace the gasket as well and since you'll have the tank down, do some preventative maintenance and replace those old fuel lines. BTW, please fill out your profile so we all know about your jeep and what you have in it!

Last edited by havasu; 07-27-2008 at 11:55 PM..
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Unread 07-28-2008, 12:21 AM   #6
usmcestep
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Well I was on the trail and my fuel pump went out, we dropped the fuel tank right there on the trail, went to advance and got a new one and fixed it.... Took about an hour.. Pretty easy, just get most of the gas out. I couldn't get mine out cause I was on a trail but it was pretty easy. Good luck!
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Unread 07-28-2008, 07:40 AM   #7
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Easy to DIY. I have done mine 4 times now(dont ask) and I am relativley new to wrenches.
syphon tank empty or run it empty.
On the driver side you will have a dust sheild that cover the gas tank fill hoses under the jeep. remove it.
loosen the hose clamps on both the hoses going into the tank and pull them off.
The gas tank is held in by 7 bolts. you will see 9 bolts. the 2 odd looking ones in the back are the tank straps, dont remove them.
I put a floor jack with a board on it and jack it up under the tank so the tank wont fall
Then remove all 7 bolts, the tank will fall with a little fanangling.
let the tank down enough to unplug the sending unit and remove the 3 hoses... MARK the 2 that look alike so you can put them back on the sending unit the right way.
drop the tank....
pull it out and from there its really easy....
clean the top of the tank prior to unscrewing the sending unit so dust and mud doesnt fall in the tank.
pull the sending unit out, remove old pump and insert new pump.
put it back together, have a beer.
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Unread 07-28-2008, 08:15 AM   #8
JPFREEK
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I have an aftermarket exhaust that wouldn't let me drop the tank so I opted for cutting an access hole in the body (floor of the trunk area behind and under the rear seat). Actually pretty pleased with how it turned out. It's another option to dropping the tank and now if I ever need to do it again it'll take 15 minutes or less.
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Unread 07-28-2008, 09:10 AM   #9
darioc
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Quote:
Originally Posted by JPFREEK View Post
I have an aftermarket exhaust that wouldn't let me drop the tank so I opted for cutting an access hole in the body (floor of the trunk area behind and under the rear seat). Actually pretty pleased with how it turned out. It's another option to dropping the tank and now if I ever need to do it again it'll take 15 minutes or less.
You cut the hole with the tank installed in the vehicle??? Pics? I was going to do the same thing once the tank was removed, but if I don't have to remove it, that would make things a lot easier.
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Unread 07-28-2008, 09:19 AM   #10
JPFREEK
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no pics. I dropped the tank a couple inches and them used a small air body saw (similar to this: http://www.harborfreight.com/cpi/cta...emnumber=91753 ) I did my best to keep the panel removed intact. The panel did curl some when removing it, but I flattened it out and welded some small bar stock I had laying around across it. The panel now sets back into place and the flat bar holds it in place while a bead of silicone seals it. Now if I need access again I can just use a razor to cut the silicone and I don't have to lower the tank at all. I currently have the panel out and I am waiting until I Herc/Durabak the tub to finish it off 100%. In true redneck fashion, the hole is simply covered with duct tape right now.
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Unread 07-28-2008, 09:40 AM   #11
darioc
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Quote:
Originally Posted by JPFREEK View Post
no pics. I dropped the tank a couple inches and them used a small air body saw (similar to this: http://www.harborfreight.com/cpi/cta...emnumber=91753 ) I did my best to keep the panel removed intact. The panel did curl some when removing it, but I flattened it out and welded some small bar stock I had laying around across it. The panel now sets back into place and the flat bar holds it in place while a bead of silicone seals it. Now if I need access again I can just use a razor to cut the silicone and I don't have to lower the tank at all. I currently have the panel out and I am waiting until I Herc/Durabak the tub to finish it off 100%. In true redneck fashion, the hole is simply covered with duct tape right now.
I figured you dropped a little bit. My only concern doing it that way is not knowing where to cut... If you could, could you post some pics? Thanks for your reply!
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Unread 07-28-2008, 09:42 AM   #12
JPFREEK
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I'll see what I can do, but no promises because of my crappy digi camera.
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Unread 07-28-2008, 10:01 AM   #13
darioc
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Quote:
Originally Posted by JPFREEK View Post
I'll see what I can do, but no promises because of my crappy digi camera.
Or if you could even measure how far in both directions you cut, that would be a HUGE help. I am assuming you cut a square out above the connectors, so how big is the square, how far from the right/left is it, and how far from the front/rear of the trunk deck is it? I know that's a lot of questions... sorry for the hassle. If you do not have the time I completely understand.
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