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-   -   Fuel tank size (http://www.wranglerforum.com/f218/fuel-tank-size-235371.html)

Wrangleriffic 04-14-2013 10:34 PM

Fuel tank size
 
Can anyone tell me how to find out how big my fuel tank is? Its a 95 wrangler 2.5 4 cyl. May need a fuel pump.

Michigan jeeper 04-14-2013 11:29 PM

I believe it may be a 15 gallon tank but I am not 100% sure

MissingMyYj 04-15-2013 12:10 AM

all jeep wrangler yj's have a 20 gal fuel tank but depending on what package was bought it either has a 15 gal or 20 gal sending unit. the jeeps with the 15 gal sending unit have a 9" long filler neck stuck down in the tank that prevents it from filling up past 15 gal... this was chryslers way have saving a few bucks. u can remove the filler neck and cut it down to about 2-3" to access the full 20 gal tank but if you have a 15 gal sending unit it your gauge will read full until you get down to 13-14 gals.

2xs 04-15-2013 01:13 AM

Quote:

Originally Posted by MissingMyYj (Post 3638003)
all jeep wrangler yj's have a 20 gal fuel tank but depending on what package was bought it either has a 15 gal or 20 gal sending unit. the jeeps with the 15 gal sending unit have a 9" long filler neck stuck down in the tank that prevents it from filling up past 15 gal... this was chryslers way have saving a few bucks. u can remove the filler neck and cut it down to about 2-3" to access the full 20 gal tank but if you have a 15 gal sending unit it your gauge will read full until you get down to 13-14 gals.

Actually, not all YJs have a 20, mine has a 15, and I cannot do the filler neck mod, Sorry.
'90 2.5L AX5 YJ

I WISH i could do the mod, but i need a larger tank....

Thriller 04-15-2013 04:58 AM

Do you know what the measurements are for the two tanks or how to identify them

kik 04-15-2013 07:20 AM

Quote:

Originally Posted by Thriller (Post 3638418)
Do you know what the measurements are for the two tanks or how to identify them

Unless it was modded, 2.5 (4cyl.) have the 15 gal. tank and 4.2, 4.0 (6cyl.) have the 20 gal. tank. The 15 gal. tanks are steel. The 20 gal. tanks are either poly or steel depending on the vendor at the time of production.

Norcal_Chris 04-15-2013 08:13 AM

Quote:

Originally Posted by kik (Post 3638669)
Unless it was modded, 2.5 (4cyl.) have the 15 gal. tank and 4.2, 4.0 (6cyl.) have the 20 gal. tank. The 15 gal. tanks are steel. The 20 gal. tanks are either poly or steel depending on the vendor at the time of production.

The newer 2.5s had 20g poly tanks.

MissingMyYj 04-15-2013 09:15 AM

Quote:

Originally Posted by 2xs (Post 3638121)

Actually, not all YJs have a 20, mine has a 15, and I cannot do the filler neck mod, Sorry.
'90 2.5L AX5 YJ

I WISH i could do the mod, but i need a larger tank....

Bummer.. I guess it was just the newer yj's. i have only owned 2 93's.

2xs 04-15-2013 12:26 PM

Yea, mine is steel, Ill post a pic later (at work).

OverkillYJ 04-15-2013 12:42 PM

Yeah I modded the 15 gallon poly tank on my 2.5 to a 20 gallon. I think all the fuel pumps are the same for the poly tanks. It is the sending units that are different.

Wrangleriffic 04-15-2013 05:30 PM

Ok so if the fuel pump is the same for both tanks why does the parts store want to know which size tank i have? Should I get the one for the 20 gallon tank? or should i just pull the tank to see if its the poly tank?

kik 04-15-2013 06:16 PM

Quote:

Originally Posted by Norcal_Chris (Post 3638814)
The newer 2.5s had 20g poly tanks.

That makes sense now with some of the confusion regarding certain years and types of tanks. Good to know.

kik 04-15-2013 06:19 PM

Quote:

Originally Posted by Wrangleriffic (Post 3640613)
Ok so if the fuel pump is the same for both tanks why does the parts store want to know which size tank i have? Should I get the one for the 20 gallon tank? or should i just pull the tank to see if its the poly tank?

It will be plastic. Double check with a magnet and you'll know for sure. But, some 20 gal tanks are poly and some are steel.

kik 04-15-2013 06:24 PM

Quote:

Originally Posted by Wrangleriffic (Post 3640613)
Ok so if the fuel pump is the same for both tanks why does the parts store want to know which size tank i have? Should I get the one for the 20 gallon tank? or should i just pull the tank to see if its the poly tank?

This should help. Original Replacement Parts 52018391P - Electric Fuel Pump for 94-95 Jeep® Wrangler YJ with 2.5L Engine, 94-96 Cherokee XJ with 2.5L or 4.0L Engine & 93-96 Grand Cherokee ZJ with 4.0L or 5.2L Engine - Quadratec

MissingMyYj 04-16-2013 01:26 PM

Did any of the 1993 4.0L's come with a 15 gal tank or 20gal tanks with a 15 gal sending unit and 9" filler neck?

Scott-CJ8 04-16-2013 02:57 PM

Quote:

Originally Posted by MissingMyYj (Post 3638003)
all jeep wrangler yj's have a 20 gal fuel tank but depending on what package was bought it either has a 15 gal or 20 gal sending unit. the jeeps with the 15 gal sending unit have a 9" long filler neck stuck down in the tank that prevents it from filling up past 15 gal... this was chryslers way have saving a few bucks. u can remove the filler neck and cut it down to about 2-3" to access the full 20 gal tank but if you have a 15 gal sending unit it your gauge will read full until you get down to 13-14 gals.

Hmmm.... this accurately describes my '93 as I have put 18 gallons in it and yes, it does stay full for quite a while before dropping the needle. For once, a PO did a good thing! :cool:

CumminsGift 04-16-2013 05:27 PM

Good stuff, thx boys

Wrangleriffic 04-17-2013 05:26 AM

Hi all

Thanks for the Quadratech link. Im gonna drop the tank this weekend. Has anyone ever cut an access panel out of the floor to get to the fuel pump? Once I get the tank out I may consider doing this just in case i need to do this again.

DILLIGAF 04-17-2013 05:36 AM

I wouldnt cut a access hole. just get or make new belly band straps for the fuel tank.

mkolb 04-17-2013 12:03 PM

Help!
I have a YJ with a 15 gal tank, and can't seem to find the right size vent hose and filler hose. All of the hoses seem to be made for 20 gal tanks. The hoses for the 20 gal didn't fit. Any suggestions on where to find the right hoses?


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