Quick question about WK 4.7 fuel tank removal... - JeepForum.com
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post #1 of 6 Old 09-25-2019, 04:36 AM Thread Starter
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Quick question about WK 4.7 fuel tank removal...

My fuel tank skidplate has mostly disintegrated due to salty Ohio winter roads. As most of you probably know this skid mounts the plastic tank to the chassis, so with most of it now missing there is a potential of the fuel tank falling out... so it’s kind of important to replace it lol

I have new skidplate to install today. The directions for the new skidplate say to release the fuel line pressure from the tank by some procedure not included in the directions. Is this really necessary? Can’t I just disconnect the fuel line and catch the draining fuel with a rag I have handy?

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post #2 of 6 Old 09-25-2019, 05:32 AM
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2008 WK 
Join Date: Jan 2019
Location: Rochester
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I dropped mine to paint the body above it as well as the skid plate itself. While in there I did a new fuel pump. Normally you’d follow some procedure to release the pressure before disconnecting the lines. I did not and it wasn’t an issue. You might want to pick up some fuel line clips though. They’re easy to break while removing.
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post #3 of 6 Old 09-25-2019, 05:35 AM
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I had to replace a mostly rusty skid on my JK this year. If your current skids have sections that are actually rusted through such that you can see parts of the plastic tank like mine did, that might offer an opportunity to drop the skid without dropping the tank. Here is what I did:

For a week before - Spray PB Blaster liberally on the skid bolts wherever I could get to them. A daily application should help.

1. Drive till almost empty.
2. Broke sections of the rusted skid out (by just twisting / breaking stuff by hand!) to make holes a couple inches big
3. Put jack stands directly on the tank in 2 places to keep it up high.
4. Remove skid bolts (impact is best) you might need to buy replacements depending on condition.
5. Use ratchet straps to strap the tank into place on the undercarriage ( do this with the last step in mind - how you place them might impact access when you need to get them back out... or just use cheap ones that you plan to leave in and maybe cut at their edges).
6. Pull the rusty skid & jack stands out.
7. Install the new skid in place.
8. Pull or cut the straps that were holding the tank up.

I did all of that to avoid dropping the tank after reading multiple accounts of guys breaking parts off the tank in the process of lowering it. In the case of the JK there is one delicate piece of plastic that commonly breaks and drives the need to replace the whole tank.

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post #4 of 6 Old 09-25-2019, 06:52 AM
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You could depressurize the system up at the fuel rail at the engine right?

92 XJ 4.0 HO,AW4, NP242, 30" BFG AT, 1.75 spacer and ZJ coils, double cherokee leaf pack and 2 inch rough country shackles, 2.5 inch dnynomax exhaust, magnaflow cat, front hooks & rear hitch, gas skid, front skid, warn t-case skid, 99+ intake, bored TB

02 KJ Limited, 255 70 16s, front skid, LS/373 gears
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post #5 of 6 Old 09-25-2019, 07:01 AM
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Do not disconnect the fuel line without dropping the pressure. Easy to do. Pull the fuel pump relay in the electrical box under the hood. Start the vehicle until it stops. Done.
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post #6 of 6 Old 09-25-2019, 08:00 AM
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