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Unread 10-31-2004, 11:49 PM   #1
Jose's Limited
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Join Date: Oct 2004
Location: Living in LI,NY
Posts: 6
cleaning fuel tank

I just changed my fuel pump and it looked like choclate milk was coming out of it so i want to clean out the fuel tank .. anybody ever done this and what is the dificulty and what is the estimated time to remove and install the fuel tank??

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Unread 11-01-2004, 07:37 AM   #2
greasefingers
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1994 ZJ 
 
Join Date: Sep 2003
Location: Northern VA, USA, NJ
Posts: 8,237
My fuel pump quit this winter, in my 94 ZJ. I had to hacksaw the gas tank hanger bolts off, because NJ spreads a lot of salt on the roads. I paid $ 309 at a local parts store.
1- Hand-pump the gas out of the tank.
2- Jack the rear up a little for better access when dropping the tank
3- Loosen the gas fill & vent line from under the rear driverís side fender.
4- Support bottom of gas tank with another jack
5- Saw off gas tank hanger bolts. I used a hacksaw blade in my hand with a glove. There is no room to saw with the hacksaw blade in its frame/holder. (buy two new bolts first)
6- Remove the three gas lines now, because you do not want any gas vapors while sawing the hanger bolts. Disconnect electrical harness.
7- Drop tank, remove crappy pump & completely wipe in inwards out with several rags & use some gas to clean it even more.
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Cheers Steve

94 Black Laredo 4-Liter with QuadraTrac (42RE trans & NP249 TC) 200,000 + miles purchased new

88 Cherokee 2-door with 5speed manual 139K miles(deceased) purchased new
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Unread 11-01-2004, 07:43 AM   #3
Meerkat
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1996 ZJ 
 
Join Date: Apr 2003
Location: Belle, WV
Posts: 4,930
Jose,
In order to help you better, we really need to know what year and model of Jeep you have. I suggest you put that information in your sig, that way you won't have to remember to put it in every time you post. It is also a good place to list current and future mods. This helps let folks know what direction you are trying to go with your particular Jeep.

Pretty much the best way to clean your tank is to drain it, then take it off the vehicle, remove the fuel pump and using lots of rags, reach through the hole where the fuel pump goes and wipe the bottom of the tank down. You're going to have to get pretty inventive if you want to reach most of the bottom, though, like taping a ball of rags to a copper tube for example.

HTH
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Warren
Black 1996 5.2L ZJ Limited
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Unread 11-01-2004, 08:17 AM   #4
Jose's Limited
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Location: Living in LI,NY
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i got a 95 limited grand cherokee... how hard is it???
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Got my 95 cherokee for sale [URL=http://www.jeepforum.com/forum/showthread.php?p=1648581#post1648581]here so take it...[/URL]
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Unread 11-01-2004, 08:35 AM   #5
Meerkat
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1996 ZJ 
 
Join Date: Apr 2003
Location: Belle, WV
Posts: 4,930
It's not overly difficult. Like Greasefingers said, the hardest part is getting the hanger bolts off.

It's definitely something you can do yourself, rather than paying the dealership lots of money.

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Warren
Black 1996 5.2L ZJ Limited
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Unread 11-01-2004, 12:32 PM   #6
greasefingers
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1994 ZJ 
 
Join Date: Sep 2003
Location: Northern VA, USA, NJ
Posts: 8,237
Once the fuel pump is removed, you can get your whole forearm inside the tank. The opening is about 8" in diameter, so you wipe wipe & wipe it clean.
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Cheers Steve

94 Black Laredo 4-Liter with QuadraTrac (42RE trans & NP249 TC) 200,000 + miles purchased new

88 Cherokee 2-door with 5speed manual 139K miles(deceased) purchased new
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