Does the 370 have something to prevent siphoning?

Arrvaxx · 08-08-2014, 02:16 PM

Does the 370 have something to prevent siphoning? I need to take 5 gallons out to get below 1/4 tank for a car show. Tried a siphon and it was like there was something stopping the tube from going down far enough.

DEpointfive0 · 08-08-2014, 02:18 PM

All new cars do IIRC.

You have to use TINY hose to work

Roddy1 · 08-08-2014, 02:19 PM

Car show hey? I'm too discreet for that.

But yes most modern cars have an anti siphon mechanism from what I have heard.

Arrvaxx · 08-08-2014, 02:22 PM

Quote:

Originally Posted by DEpointfive0

All new cars do IIRC.

You have to use TINY hose to work

Damn it! Maybe I'll try to find one.

theDreamer · 08-08-2014, 02:29 PM

Or just drive the car for a bit? Should be easy with those spinning things attached to your pipes.

Arrvaxx · 08-08-2014, 02:33 PM

Quote:

Originally Posted by theDreamer

Or just drive the car for a bit? Should be easy with those spinning things attached to your pipes.

Oh yeah! Great idea.

I might have to. But I just had it detailed and would like to keep it as fresh as possible.

phunk · 08-08-2014, 02:48 PM

you can run a fuel line into a bucket and prime the pump over and over

Liquid_G · 03-16-2015, 09:57 AM

bumping this in case anyone else has to do this for a show..

I tried siphoning from the filler neck with 1/4 in airline but only was able to get about a gallon out. i was about 2/3 full and after a few minutes i couldn't keep the suction going.. I'd get like 2ft of line in the filler neck and it would stop.. kept getting air bubbles in the line so not sure what was going on..

So, I ended up pulling the fuse labeled "Meter" bottom left of the fuse panel in the drivers footwell. It blacked out the gas gauge and that whole side of the cluster. It takes out a few other things, the needles on the speedo and tach don't light up, and your turnsignals don't "tick" or display on the dash, but still work. Was enough to get me past the check-in point at the show.

BrendenZ34 · 02-28-2023, 08:38 PM

Hey so I have had my 2019 370z sitting for the winter and I went to start it today and it started up no problem but had a rough idle. I checked for vacuum leaks and there was no obvious ones. I was doing some research and the last time I filled up with gas was back in October. And it's only been started a few times since. Is it possible that the gas is old? Gas goes bad after about 3-6 months and I'm going on 5 months now. Let me know what else it could be or if the gas could cause it and what I might have to do about that. Is SYPHONING possible in these cars?

phunk · 02-28-2023, 11:18 PM

Quote:

Originally Posted by BrendenZ34

Hey so I have had my 2019 370z sitting for the winter and I went to start it today and it started up no problem but had a rough idle. I checked for vacuum leaks and there was no obvious ones. I was doing some research and the last time I filled up with gas was back in October. And it's only been started a few times since. Is it possible that the gas is old? Gas goes bad after about 3-6 months and I'm going on 5 months now. Let me know what else it could be or if the gas could cause it and what I might have to do about that. Is SYPHONING possible in these cars?

Fuel from October should be fine. I store cars every winter for 4+ months, going on many years, along with many friends. Plus many project cars sit longer than that while people rebuild the engines etc. Having been around cars full time for 20 years, me personally, I have not yet seen anyone need to drain their tank due to the fuel going bad while the car was stored. Not saying it cant happen, but I have never heard of it in real life.

BrendenZ34 · 03-01-2023, 04:23 AM

Quote:

Originally Posted by phunk

Fuel from October should be fine. I store cars every winter for 4+ months, going on many years, along with many friends. Plus many project cars sit longer than that while people rebuild the engines etc. Having been around cars full time for 20 years, me personally, I have not yet seen anyone need to drain their tank due to the fuel going bad while the car was stored. Not saying it cant happen, but I have never heard of it in real life.

Alright that's what I was wondering but I checked and there was no misfire code and no vacuum leak. I am not sure what else it could be. Maybe clogged injectors? Or something along those lines?

phunk · 03-02-2023, 01:30 AM

Quote:

Originally Posted by BrendenZ34

Alright that's what I was wondering but I checked and there was no misfire code and no vacuum leak. I am not sure what else it could be. Maybe clogged injectors? Or something along those lines?

Unlikely to have clogged injectors unless the mileage is very high. Id probably give it a little drive to see if it clears up. If not I would then begin a comprehensive diagnostics to determine the cause, starting with logging ECM parameters and looking for anything out of order.

filip00 · 03-02-2023, 03:06 AM

Quote:

Originally Posted by BrendenZ34

Hey so I have had my 2019 370z sitting for the winter and I went to start it today and it started up no problem but had a rough idle. I checked for vacuum leaks and there was no obvious ones. I was doing some research and the last time I filled up with gas was back in October. And it's only been started a few times since. Is it possible that the gas is old? Gas goes bad after about 3-6 months and I'm going on 5 months now. Let me know what else it could be or if the gas could cause it and what I might have to do about that. Is SYPHONING possible in these cars?

Unless you are putting in really sketchy weird gas, there is NO problem with gas getting old, 100%. I always store my car for winter and I always fill it up to the brim, when I go start it after it's been sitting, my battery is dead, but the gas is fine. I boost the battery and the car starts immediately. You should look for the problem elsewhere.

BrendenZ34 · 03-04-2023, 08:14 AM

Quote:

Originally Posted by filip00

Unless you are putting in really sketchy weird gas, there is NO problem with gas getting old, 100%. I always store my car for winter and I always fill it up to the brim, when I go start it after it's been sitting, my battery is dead, but the gas is fine. I boost the battery and the car starts immediately. You should look for the problem elsewhere.

I got a PO305 cylinder 5 misfire code spark plugs and coils seem like an unlikely culprit as it's been parked under no stressful load, any idea what could cause that misfire or is there a possibility something could've happened to the plugs and coils while sitting?

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08-08-2014, 02:16 PM	#1 (permalink)
Arrvaxx A True Z Fanatic Join Date: Jul 2013 Location: Whore Island, MN Posts: 1,243 Drives: 40th F.I. Twin Turbo Rep Power: 19	Does the 370 have something to prevent siphoning? Does the 370 have something to prevent siphoning? I need to take 5 gallons out to get below 1/4 tank for a car show. Tried a siphon and it was like there was something stopping the tube from going down far enough. __________________ 2010 370Z 40th Anniversary (#480 born 1/19/2010) Fast Intentions Twin Turbo \| Varis Arising II \| Limited Edition Recaro Sportster \| Tuned by Specialty Z \| 604hp 525 torque @14lbs boost on 100 octane

08-08-2014, 02:18 PM	#2 (permalink)
DEpointfive0 A True Z Fanatic Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17152	All new cars do IIRC. You have to use TINY hose to work __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

08-08-2014, 02:19 PM	#3 (permalink)
Roddy1 Enthusiast Member Join Date: Jan 2014 Location: Canada/Cayman Islands Posts: 274 Drives: SRT Viper Rep Power: 12	Car show hey? I'm too discreet for that. But yes most modern cars have an anti siphon mechanism from what I have heard. __________________ 2011 370Z, 6-Speed Manual, Sport Package. - K&N Drop ins \| Top Speed Axleback \| H&R Spacers SOLD 2009 G8 GT, 6.0L LSX V8, Rotofab Intake, ARH Long tubes, SOLO exhaust, VMS Tune - SOLD

08-08-2014, 02:29 PM	#5 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4211	Or just drive the car for a bit? Should be easy with those spinning things attached to your pipes. Leroydsouza and Arrvaxx like this. __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

08-08-2014, 02:48 PM	#7 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974724	you can run a fuel line into a bucket and prime the pump over and over __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

03-16-2015, 09:57 AM	#8 (permalink)
Liquid_G A True Z Fanatic Join Date: Aug 2009 Location: Chicago Burbs Posts: 1,439 Drives: 09 370z Supercharged Rep Power: 44	bumping this in case anyone else has to do this for a show.. I tried siphoning from the filler neck with 1/4 in airline but only was able to get about a gallon out. i was about 2/3 full and after a few minutes i couldn't keep the suction going.. I'd get like 2ft of line in the filler neck and it would stop.. kept getting air bubbles in the line so not sure what was going on.. So, I ended up pulling the fuse labeled "Meter" bottom left of the fuse panel in the drivers footwell. It blacked out the gas gauge and that whole side of the cluster. It takes out a few other things, the needles on the speedo and tach don't light up, and your turnsignals don't "tick" or display on the dash, but still work. Was enough to get me past the check-in point at the show. wsarver and Falconquey like this. __________________

02-28-2023, 08:38 PM	#9 (permalink)
BrendenZ34 Base Member Join Date: Oct 2022 Location: Illinois Posts: 15 Drives: Nissan 370z 6MT spor Rep Power: 3	Hey so I have had my 2019 370z sitting for the winter and I went to start it today and it started up no problem but had a rough idle. I checked for vacuum leaks and there was no obvious ones. I was doing some research and the last time I filled up with gas was back in October. And it's only been started a few times since. Is it possible that the gas is old? Gas goes bad after about 3-6 months and I'm going on 5 months now. Let me know what else it could be or if the gas could cause it and what I might have to do about that. Is SYPHONING possible in these cars?

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