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blackwrangler357 02-09-2011 02:37 PM

gas tank help
so i hate my small 15 gallon tank only got 189 miles then its empty i dont like it is there a way to make this 38 gallon fit in there :confused:

Auto Parts and Accessories Catalog - 1990 jeep wrangler replacement fuel tank - 1990 Jeep Wrangler Replacement Fuel Tank

blackwrangler357 02-09-2011 02:48 PM

has anybody had success wit this i have 91

Garyk 02-09-2011 02:50 PM

Have you checked to see if yours is really a 20 gallon?

blackwrangler357 02-09-2011 02:52 PM

mine is 15 gallon which is why im so annoyed wit only going so far

blackwrangler357 02-09-2011 02:53 PM

i ran it flat out gas it barley goes over 15 gallons before gas pours out i hate it i love my jeep but i hate how far i can only go

89JEEPYJ 02-09-2011 04:05 PM

ya when i had a hole in my gas tank and i was looking for a new tank i saw that one also. according to the site it should fit. Only prob is it sits a lil lower if i remember correctly witch means less clearence

wranglerYJnewb 02-09-2011 05:34 PM

You probably have a 20 gallon gas tank but there is a flow restrictor tube that tricks your tank to only filling up to 15 gal.... remove your gas cap and housing, take up the filler house (not over flow hose)... look for a black plastic 9" long pipe sticking down in your tank (you wont know its nine inches unless you pull it our with some pliers) if it is 9" cut it down two about 2" and bam u have a 20 gal gas tank.... but your sending unit is only for a 15 gal so you gage will read full for the first 5 gal but once it starts to drop below 15 gal the gas will read correctly
read this
YJ Gas Tank 15-to-20 Gallon Conversion

89JEEPYJ 02-09-2011 05:43 PM

are u sure about that. i have a 20 and my filler thing is on the top and if i run empty i get 20g

wranglerYJnewb 02-09-2011 05:48 PM


Originally Posted by 89JEEPYJ (Post 1045288)
are u sure about that. i have a 20 and my filler thing is on the top and if i run empty i get 20g

All yj's from 91-95 were made with 20 gal gas tanks. They just have a 9" plastic tube that blocks it to 15gal. If you paid at the dealership for the upgrade they from a 15 to 20 gal then they took the jeep to the back and cut the tube then gave u a 20 gal sending unit

89JEEPYJ 02-09-2011 05:53 PM

oo i got a 89 so im good :)

ropanach 02-10-2011 01:03 AM

After reading this post, I put the 95 YJ in the gerage and removed the 10 1/2" tube out of the tank, it is all stock, never had to drop the tank just removed the plastic guard, only PTA was the clamp, now I have a 20 gl. tank :thumb: witch means i'll have to dig into the wallet a little deeper too fill it up now.:redface:

blackwrangler357 02-10-2011 11:10 PM

but then why when i get to 15 gals did it start over flowing out the back the jeep onto the ground that doesnt make sense

ropanach 02-10-2011 11:20 PM

I did the mod to my 95 YJ last night, today I filled it all the way up to the cap, did some jeeping, it leaked out only when I was on a seep incline, my bad, I didn't get the clamp on behind the lobe on the neck, redid the clam will see how it goes.

Crso8541 02-11-2011 12:49 AM

Anyone got pics of this? Just to clarify, pull the whole assembly out of the tank, but there is an extra 9" at the end. Cut that and viola...

wranglerYJnewb 02-11-2011 01:53 AM

read the link i posted... u want to put 1.5-2" back in.....dont just remove the tube

ropanach 02-11-2011 11:06 AM

I cut off 2" as suggested, and pressed it back into the tank, so to help keep the hose clamped into place, it gives the clamp a riged place to grab onto. I allso replaced the clamp.

blackwrangler357 02-15-2011 03:21 PM

how did this go from 38 gallon tank to rigging ur tank to hold 20 gallons lmao

Undead-89 02-15-2011 04:03 PM

87-91 share most things as far as everything I see. I don't see anything about whether a skid plate will fit it, which would be my concern.

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