I don't know. But hey, guessing is fun. Might get your creative thoughts going.

Drain plug?
Have you actually tried a hose? Smaller one?
Any option to disconnect fuel line and then attach your own and pull siphon that way?
If desperate, and If there is a pressure test port, and you trust your pump to live, maybe pump it out by forcing the pump to run

All that being said, I've treated and mixed in old gas. You dont have to get it all unless rusty.

 

I don't know. But hey, guessing is fun. Might get your creative thoughts going.

Drain plug?
Have you actually tried a hose? Smaller one?
Any option to disconnect fuel line and then attach your own and pull siphon that way?
If desperate, and If there is a pressure test port, and you trust your pump to live, maybe pump it out by forcing the pump to run

All that being said, I've treated and mixed in old gas. You don't have to get it all unless rusty.

So... there is no drain plug on the tank. That was the first thing I looked for. I've tried a couple siphon hoses, none worked.

As for fuel line disconnect - the lines are on top of the tank which means dropping it, which I don't want to do.

I did however disconnect the fuel line at the fuel rail (sucks that nissan require's a 'special' disconnect tool instead of standard auto shop ones). After this I tried looking for the fuel relay so I could jump the fuel pump to run continuously when I discovered that this truck has no relay and its all part of the ICDM (i think thats what its called).

Then I tried accessing the fuel pump through the OBDII port, but Nissan is stingy on what they release and they did not release the code to allow people to just turn on their fuel pumps through a scanner tool.

After giving up on trying to get the fuel pump jumped, I was able to attach an old garden hose to the fuel line I had already disconnected and so far have been able to get about 5-6 liters out by cycling the truck on/off (via battery switch) to prime it (runs the fuel pump for a few seconds) but the ICDM will only prime the rail once every couple minutes (hences why I'm using my battery switch, because it resets the IPDM and I can keep priming). I got about 5 - 6 liters out this way.

I really don't like this method - turning it on and off - so I tried the siphon again but this time connected it to the fuel line i disconnected from the rail. This also did not work as the little hand ball pump thing can't pull hard enough and just stays stuck. It just doesn't have enough force to pull it through the truck and the fuel pump inside the tank.

Anyway, next thing I am going to try is: i bought a small 12v low pressure fuel pump that connects direct to the battery for $30CDN that I am going to connect it to the fuel line I already disconnected and pump it out that way.

I really just wanted to see if there were any other options out there; mainly what ways to turn on the fuel pump.

 

Twist: disconnect main battery. Might be able to introduce voltage with a probe itself.

 

Twist: disconnect main battery. Might be able to introduce voltage with a probe itself.

i dont know what you mean - could you explain it a bit better?

EDIT: i kind of think I understand but the problem is that the ICDM thing controls the on/off function of the fuel pump. Without tripping it there, I won't be able to turn it on. I dont even know where the ICDM thing is, or how it works :\

am i missing something?

 

Remove the bed bolts, disconnect the electrical connectors, and then slide the bed to one side to access the tank.

 

that seems like.... quite a lot for one guy to do.

I found this post in the forums here talking about how to move the bed

"You need to remove the fuel filler pipe, and electrical wiring to tail lights and license plate, and camera if equipped. Then unbolt the mounts.
My guess on the weight is 300 lbs, tops.
Get "PB Blaster" penetrating oil for loosening bolts.
And Anti-Seize compound for gooping up the bolt threads for reassembly.
A few baggies to cap off the fuel tank.
Cinder blocks or saw horses to support it.
And a few strong friends.
And beer, ice, and Dominos Pizza phone number."

 

Used to do this by myself many times. You only have to slide it over about a foot. Anyway, I hope you get it drained.

Wouldn't eat free pizza from Domino's 🤣

 

Used to do this by myself many times. You only have to slide it over about a foot. Anyway, I hope you get it drained.

Would eat free pizza from Domino's 🤣

what else is involved in sliding the bed back a bit? I would assume the fill up line to the tank needs to be disconnect - anything else?

 

Will it start?
If it will, just start it and drive it. You can refreshen that old gas by adding a gallon or two of fresh premium gas, then run it down to empty, and refill.
Two year old gas should burn fine.
Add two cans of Berrymans B12 Chemtool injector cleaner to the tank also, which will dissolve any gums that formed.
This is a common solution in marinas and boatyards. But just burn it off an you'll be fine.

 

i’ve heard that approach works for some, especially in marine setups, but i’m trying to play it safe here since the tank was pretty full and the truck’s been sitting for 2 years. just don’t want to risk gumming anything up, so i’m draining it out fully first and starting fresh!

 

[Q I dont even know where the ICDM thing is, or how it works :\


[/QUOTE]

The IPDM (Intelligient Power Distribution Module) Is the fuse box under the hood, near the firewall on the passenger side. In addition to holding fuses, it contains circuitry and relays to control some truck electrical functions.

 

[Q I dont even know where the ICDM thing is, or how it works :\

The IPDM (Intelligient Power Distribution Module) Is the fuse box under the hood, near the firewall on the passenger side. In addition to holding fuses, it contains circuitry and relays to control some truck electrical functions.
[/QUOTE]
YES! thats what its called lol - the ICDM. Is there a way to jump the fuel pump?

 

From fsm

 

I agree with what @RamTest is saying. How much fuel is in the tank currently? If you already pulled 5-6 liters out, I'd go fill it up with fresh fuel and drive it. Your single cylinder lawn mower engine with a gravity fed carburetor and your multi cylinder Fuel injected truck engine are two different "fresh fuel" needs.

 

Your single cylinder lawn mower engine with a gravity fed carburetor and your multi cylinder Fuel injected truck engine are two different "fresh fuel" needs.

Even with that, I fired my snowblower in January, and the fuel in that was at least 2-1/2 years old. Started first pull. I just let it idle in the driveway for a while until the old gas burned off.

Plus, how do you dispose of 13-15 gallons of gasoline, which is what the OP is facing?

.

 

Same thought. Actually a full tank likely helped you. I've treated and burned fuel that was a LOT older than a few years.

As for running the pump, I can guide you on where to probe safely. Instead, I'm suggesting that IF you have access somewhere, disconnect fuel pump entirely as though it is on your workbench

 

I usually fill a 1 gallon gas container in the late fall for the snowblower, if I dont use it moving snow, I dump it in the truck. I’ve been told that cars can run just fine on old gas.

 

from what i understand its hit or miss. old fuel loses volatility, and because of the high ethanol content they are putting in gas now its extremely hydrophobic so there could be water in it. its basically ok for older carbureator engines but it can gum up fuel injectors on more modern machines. I just want to do things right this time around to avoid any issues down the line

 

There is a section of rubber hose that connects the filler tube to the gas tank. Help in place by 2 worm gear type hose clamps. If you remove this section of flex hose you should be able to gain direct access to the gas tank. You can reach this area fairly easily.

 

Last year I helped to bring a Sebring back from the junk yard. Two and a half years just sitting there.
New starter, new battery, new spark plugs, oil change, and filled it off with Chevron premium gas (only gas station within 'push me to the gas pump' range). About 1/14 of the tank was old gas.
No issues. Passed smog and stuff after that.
Do what was suggested, add premium fuel, couple of injection cleaners, about half tank down, refill and burn gas until almost empty. You should be fine.

 

I have a 2016 Nissan Frontier that sat for 2 years with 3/4 tank full of gas. The gas is really bad and needs to be pumped out but - the frontier has anti-siphon in place so just sticking a tube down into the gas tank won't work.

I don't want to drop the tank because I am not equipped for it.I have some stuff but I am really not equipped to drop it.


I want to hear from the community what ways there are to drain gas out of the 2016 Frontier.

Please let me know! Thanks

Apologies for the late reply.....

Watch the attached YouTube video. It is possible to BYPASS the fuel pump relay on the IPDM. You'll have to disconnect / de-pin a few wires from the wiring harness to temporarily run power directly to the fuel pump. OR you can see if you can find a body harness / wiring harness connector in-between the ECU / IPDM and the fuel pump that you can disconnect and run power directly to the fuel pump.

You can start watching after the 8 minute mark to see how to bypass the IPDM fuel pump relay.

You'll need a copy of the Nissan Factory Service Manual to see the wiring harness locations & electrical wiring schematic to de-pin / connect a temporary power source and to verify you are disconnecting the PROPER wires to bypass the IPDM & run power directly to the fuel pump.

https://cardiagn.com/nissan/frontier/

Nissan Frontier repair manual free download PDF | Car Manuals Club

Nissan Frontier 2000 - 2019: repair manuals, wiring diagrams and owners manuals - more than 250 manuals for free download.

carmanualsclub.com

Nissan Service Manuals - NICOclub

NICOclub.com purchases, downloads, and maintains a comprehensive directory of Nissan Factory Service Manuals for use by our registered members. While we wouldn’t prevent anyone from using this information, we’d hope you would appreciate our efforts enough to frequent the forums here, rather than...

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Hope this helps....

 

Found a picture of the rubber flex section I was talking about. This is past all the anti siphon stuff located within the top portion of the filler tube. Just undo like the picture and put your siphon or suction tube in through there. OR undo the lower portion.

BTW this is what mine looked like when I got my truck back from Nissan of Reno after getting my fuel sender replaced. Found out at the gas station when I tried to fill with gas and it just dumped out on the ground. It was suppose to be done on warranty work (special extended warranty to cover this issue) otherwise I would have just done it myself as I don't trust dealers (for GOOD reason). They also denied the warranty for some BS reason, but I had them do it anyways since they already had the truck and it took some effort to get it there (and a ride home), then to get a ride to pick it up as the dealer is 45 minutes from my house.

 

100% this was the way to go all along. So easy to access the tank from here. I tried my stupid method of pulling from the fuel line at the fuel rail - it didnt work. Waited a day or two and then got down to doing it this way, and it worked super easily. Just heldon by a simply hose clamp and that was it.

I took the battery out, set it near the rear left tire, andused the inline pump to get the gas out.

Filled it up with about 30 liters of sea foam treated fuel, and let it run for a bit. Was a bit janky for first minute or two but cleaned itself out, RPM's down to normal idle again, and is still running great.

Thanks for posting this, not sure what I would have done without. It's crazy that this information wasn't just readily available. I even called my local Nissan and they said they would drop the tank.

 

Final Warning:
Turn the key and burn it off.