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post #1 of 141 (permalink) Old 01-23-2009, 02:16 AM Thread Starter
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Auxiliary Gas Tank

I think I have found a solution for adding an auxiliary gas tank to my Commander. There is a business that is dedicated to performing this modification. I have purchased two auxiliary tanks in the past for different motor homes. I went by and talked to the owner this morning. When I first asked he said that he would not do it because there were several reasons not to do it on a late model gas vehicle. After he realized that I had bought two tank installations from him and we talked for awhile he came around and said he would do it just for me. I also got him to agree to put together complete kits that he would ship out of California. I talked with Ross about "Get Lost 4x4" becoming the dealer for these kits.

Now some of the details and resolved problems. The first reason he said that he did not want to install the second tank is because of an interesting fact about newer vehicles. He told me that the Commander has a small air compressor that is controlled by the computer that compares the fuel level from the sensors to the pressure reading from the compressor that puts air in the tank. The computer compares the pressure to the amount of fuel in the tank. This is why we get the engine code if the fuel tank cap is not sealed. He said that this code does not hurt anything and can be erased by removing the ground cable from the battery. Even better he said that if I get the code he will install ball valves in the filler lines to eliminate the code. The details of the setup include a 20 to 25 gallon tank in the spare tire location, a skid plate under the gas tank, using the same filler for both tanks by installing a "Y" connector, installing a second fuel gauge, and a switch up front.

The way the system will work is to allow filling from a common filler, the back tank will have a sending unit for the second gauge and a pump controlled by the front switch to recirculate the fuel from the rear tank to the front tank. A second line between the two tank will allow the fuel to circulate back to the rear tank if the front tank is full to eliminate any possibility of pumping gas out of an overful tank. Each gauge would show the level of fuel in each tank. The combined fuel capacity would probably be between 37 and 42 gallons. He also agreed to let me take pictures of the install and all parts to post on the Forum. This fellow has several Cherokee's that are set up for off road use.

Sorry for the long post.

I now need to get my tire relocated out of the spare area and mounted on a tire carrier and give him a couple of days to install it.

2007 Jeep Green Limited 4.7 Flex Fuel, RR 2.5" 4 inch Superlift coils on rear, 1.5" Spacers, Bridgestone 265/70/17, K&N CAI, Flowmaster, Diamond Plate Locking Trunk, Blue Ox Baseplate w/D-rings, "Get Lost 4X4" Front Bumper, T-Max 9000 winch, "Get Lost rear tire carrier, 30 gal second gas tank.
Second 2007 Jeep Green Limited Leather HEMI QDII VES Uconnect Flowmaster OEM Skids Tow Package

Maybe the two will meet up soon edit: they did , I now have 2,now gave 1 away...and got it back again.

Last edited by HueyPilotVN; 01-23-2009 at 02:19 AM.
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post #2 of 141 (permalink) Old 01-23-2009, 02:54 AM
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Any idea how much it would cost and how "regular" people could get them installed?

RIP - Silver '06 Limited; 5.7 Hemi; 2" TerraFlex Lift; 255/70R17 Bridgestone Dueler REVOS, Horizontal Inclinometer, Signal Frog Antenna Ball, Surco Safari 50"x50" Roof Rack, GetLost4x4 bumper, Bulldog 9k Winch, GetLost4x4 Rock Rails - (should have added a snorkel)
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post #3 of 141 (permalink) Old 01-23-2009, 03:11 AM Thread Starter
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I am going to wait unit it is completed so so that I can give accurate numbers, but he gave me some ballpark numbers that made me very comfortable with the cost. I would like to support Ross by waiting to see what could be done with the kit cost.

I do not think the installation would be very hard as long as these professionals put together every small part needed and use my commander to insure that all of the dimensions are right on. I would anticipate that they would have all the experience needed to create an exact fit solution.

After I have it installed and post all of the pictures you will be able to judge better for yourself.

2007 Jeep Green Limited 4.7 Flex Fuel, RR 2.5" 4 inch Superlift coils on rear, 1.5" Spacers, Bridgestone 265/70/17, K&N CAI, Flowmaster, Diamond Plate Locking Trunk, Blue Ox Baseplate w/D-rings, "Get Lost 4X4" Front Bumper, T-Max 9000 winch, "Get Lost rear tire carrier, 30 gal second gas tank.
Second 2007 Jeep Green Limited Leather HEMI QDII VES Uconnect Flowmaster OEM Skids Tow Package

Maybe the two will meet up soon edit: they did , I now have 2,now gave 1 away...and got it back again.
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post #4 of 141 (permalink) Old 01-23-2009, 09:06 AM
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Thanks for working that out, look forward to the pics!



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post #5 of 141 (permalink) Old 01-23-2009, 09:20 AM
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I think the only way I'd put an Auxiliary Gas Tank where the spare tire is located is if I had a GetLost rear bumper or something equivalent. I could just imagine getting rear ended and causing mad choas.




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post #6 of 141 (permalink) Old 01-23-2009, 09:43 AM
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i'll have pictures of the spare tire carrier i'm building huey. i should have it finished today. we are powder coating it for him as well.

this set up is similar to phunky's. but ours comes standard with CB antenna mount, jerry can mount, license plate bracket, and frame extensions to keep it stable and not bouncing around, there is also a receiver hitch. you can order it off-set to one side like huey wants or you can have it centered on the back.
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post #7 of 141 (permalink) Old 01-23-2009, 09:47 AM
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Quote:
Originally Posted by Get Lost 4X4 View Post
i'll have pictures of the spare tire carrier i'm building huey. i should have it finished today. we are powder coating it for him as well.

this set up is similar to phunky's. but ours comes standard with CB antenna mount, jerry can mount, license plate bracket, and frame extensions to keep it stable and not bouncing around, there is also a receiver hitch. you can order it off-set to one side like huey wants or you can have it centered on the back.
Copied this post to THIS THREAD. Please comment on Tire Carrier in linked thread and aux. gas tank in this thread. THX.



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post #8 of 141 (permalink) Old 01-23-2009, 10:44 AM
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Wouldn't the tank be protected by the vehicle frame already? Also, don't be so sure that the dimensions and placement of holes and such are the same from vehicle to vehicle. I know there on some subtle, but important, body differences between the different models.

RIP - Silver '06 Limited; 5.7 Hemi; 2" TerraFlex Lift; 255/70R17 Bridgestone Dueler REVOS, Horizontal Inclinometer, Signal Frog Antenna Ball, Surco Safari 50"x50" Roof Rack, GetLost4x4 bumper, Bulldog 9k Winch, GetLost4x4 Rock Rails - (should have added a snorkel)
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Quote:
Originally Posted by PolarBZ View Post
Wouldn't the tank be protected by the vehicle frame already? Also, don't be so sure that the dimensions and placement of holes and such are the same from vehicle to vehicle. I know there on some subtle, but important, body differences between the different models.
I would think so since the rear bumper is attached to the same cross member that the hitch and frame extensions are attached to. I wouldn't have any issues installing the tank since it'll have adequate protection.

Huey & Ross, let us know when the details are worked out and there's pricing available. Great job on this.

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post #10 of 141 (permalink) Old 01-23-2009, 02:39 PM
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Yeah, hurry, so we can get them installed before gas prices sky-rocket again!

RIP - Silver '06 Limited; 5.7 Hemi; 2" TerraFlex Lift; 255/70R17 Bridgestone Dueler REVOS, Horizontal Inclinometer, Signal Frog Antenna Ball, Surco Safari 50"x50" Roof Rack, GetLost4x4 bumper, Bulldog 9k Winch, GetLost4x4 Rock Rails - (should have added a snorkel)
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