HOW TO: fix the KK fuel burp plague!

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badair

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This post is follow up to HOW TO: fix the KJ fuel burp plague! (https://www.jeepkj.com/threads/how-to-fix-the-kj-fuel-burp-plague.57056/)

For my 2009 Liberty (KK), process is different. I'd say easier than on KJ.

So on the KK, the inlet to the fuel tank is mostly aluminum line. There is a short length of fuel hose from the aluminum line which connects to the fuel tank. I replaced the original hose with the Genuine GM 15131046 Fuel Tank Filler Hose from amazon.

Here's the process I followed:

I hit each end of the hose w seafoam's deep creep and let it sit for about 5 minutes. I removed the old hose. Not alot of room to move here and the spare tire was in the way a bit too. Removing the old hose took the most amount of time. I considered just cutting the old hose off, but decided to keep it intact in case i need it later. It probably took me 20 minutes to work the hose out.

I cut the new hose to be same length as original mine was 7". The section I cut off was JUST on the end WITHOUT the hose clamp. I am still concerned that I don't have enough length of hose from the end of the hose to the valve. I considered pushing the valve further up in the new hose. I decided to just leave the valve in the factory location.

There was enough length of hose to allow me to reclamp on to the aluminum line. However, I still need to test if there is enough room for the valve to move fully. I guess I'll find out on next fill up.

When I installed the new hose I rotated the hose so the notch in the new hose was on TOP of the fuel tank nipple. You can see the notch in the new hose in the pic with both hoses side by side. I added the red arrow to help identify the notch.

I did not have to remove any parts to do the swap. However, I probably should have removed the spare tire to give myself a little more room.

I DID remove 1 bolt to allow the aluminum line to move.

NOTE the GM hose has a notch that needs to be located at the TOP of the fuel tank nipple.

I'll update here on the forum if there are any problems with fueling up or any other issues by just using the GM hose.
 

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badair

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This post is follow up to HOW TO: fix the KJ fuel burp plague! (https://www.jeepkj.com/threads/how-to-fix-the-kj-fuel-burp-plague.57056/)

For my 2009 Liberty (KK), process is different. I'd say easier than on KJ.

So on the KK, the inlet to the fuel tank is mostly aluminum line. There is a short length of fuel hose from the aluminum line which connects to the fuel tank. I replaced the original hose with the Genuine GM 15131046 Fuel Tank Filler Hose from amazon.

Here's the process I followed:

I hit each end of the hose w seafoam's deep creep and let it sit for about 5 minutes. I removed the old hose. Not alot of room to move here and the spare tire was in the way a bit too. Removing the old hose took the most amount of time. I considered just cutting the old hose off, but decided to keep it intact in case i need it later. It probably took me 20 minutes to work the hose out.

I cut the new hose to be same length as original mine was 7". The section I cut off was JUST on the end WITHOUT the hose clamp. I am still concerned that I don't have enough length of hose from the end of the hose to the valve. I considered pushing the valve further up in the new hose. I decided to just leave the valve in the factory location.

There was enough length of hose to allow me to reclamp on to the aluminum line. However, I still need to test if there is enough room for the valve to move fully. I guess I'll find out on next fill up.

When I installed the new hose I rotated the hose so the notch in the new hose was on TOP of the fuel tank nipple. You can see the notch in the new hose in the pic with both hoses side by side. I added the red arrow to help identify the notch.

I did not have to remove any parts to do the swap. However, I probably should have removed the spare tire to give myself a little more room.

I DID remove 1 bolt to allow the aluminum line to move.

NOTE the GM hose has a notch that needs to be located at the TOP of the fuel tank nipple.

I'll update here on the forum if there are any problems with fueling up or any other issues by just using the GM hose.
OK all, I filled up the tank yesterday, no flow issues with the gas pump nozzle on high. And nozzle did turn off as normal
 

lfhoward

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OK all, I filled up the tank yesterday, no flow issues with the gas pump nozzle on high. And nozzle did turn off as normal
Excellent!

I had the tank replaced under warranty in 2014 on my 08. It’s now been more years since the swap than it was before… hope the technology improved or I will be visiting this thread again at some point
 

rziady

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I'm going to try this on my '09 Liberty(KK) LTD. Do you need to drain the tank or wait until its low to do this? Thanks!
 

lfhoward

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I'm going to try this on my '09 Liberty(KK) LTD. Do you need to drain the tank or wait until its low to do this? Thanks!
I dropped my fuel tank to replace the fuel pump this summer. You will want to wait until it’s close to E to do this job. The tank is heavy and hard to maneuver when it’s full of gas. Good luck!

Edit: I guess if all you’re doing is replacing the hose on the rear of the tank, then there is no need to drop the tank.
 

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