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Old 02-27-2004, 12:11 AM   #1 (permalink)
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Gas Smell

I have a problem with my car and no one seems to know what it is. When i drive with my windows down sometimes i smell a gas smell. Does anyone else have this problem and what do u think it could be? I dont believe i am losing any gas milage but it has been doing this a little while after i bought the car. Any help will be apprecitated!
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Old 02-27-2004, 12:25 AM   #2 (permalink)
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Re: Gas Smell

You know, I have the very same problem since long ago. If I cruise at highway speeds and then stop for a toll, when I roll down the window to pay, I get the smell. I've looked everywhere trying to find the source of the smell at no avail. I got bored and eventually decided to ignore it. Gas mileage is still the same so... beats me
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Old 02-27-2004, 12:38 AM   #3 (permalink)
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Re: Gas Smell

Lay off the enchiladas and baked beans. j/k
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Old 02-27-2004, 02:25 PM   #4 (permalink)
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Re: Gas Smell

Noticed the same thing here.
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Old 02-27-2004, 06:54 PM   #5 (permalink)
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Re: Gas Smell

Check the gas fill return line. There's a short 7-8 inch section of rubber hose that connects the metal return line to the gas tank that is prone to leaking. Make sure you replace it with another section of fuel rated hose.
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Old 02-27-2004, 07:15 PM   #6 (permalink)
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Re: Gas Smell

I'm glad I'm not the only one. I only smell it when I get on it though.

^^^^Do you have any pictures of this line?
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Old 02-28-2004, 01:36 AM   #7 (permalink)
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Re: Gas Smell

Where is this line exactly? is it closer to the gas tank?
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Old 02-28-2004, 02:37 AM   #8 (permalink)
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Re: Gas Smell

I've got the same problem. I just noticed it today. weird.
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Old 02-28-2004, 06:52 AM   #9 (permalink)
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Re: Gas Smell

Quote:
Originally Posted by SloSR20
Where is this line exactly? is it closer to the gas tank?
Yes.

Jack up the rear of your car. Crawl under the car. Just in front of the driver's rear wheel you'll notice the fuel fill and air return lines coming from the gas fill port that lead down into the fuel tank. On my car, the smaller diameter air return line (rubber portion) was leaking at the connection closest to the tank. I simply purchased a section of the same size fuel rated hose and replaced it. Problem solved.
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Old 02-29-2004, 04:20 AM   #10 (permalink)
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Re: Gas Smell

I had this problem, turned out to be the fueline at the fuelfilter was crackedslightly and was the culprit.
aztecred92, the prokits are working nicely on my classic, thanks again, o, and i am installing a new tranny in the classic too, lol, no stripped out bolts this time, ed
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Old 02-29-2004, 09:08 AM   #11 (permalink)
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Re: Gas Smell

Quote:
Originally Posted by edsclassic
I had this problem, turned out to be the fueline at the fuelfilter was crackedslightly and was the culprit...
Good Point Ed. I guess the lesson here is anywhere there's a rubber fuel line, there's a pontential source for a fuel leak, especially on older cars.

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Old 02-29-2004, 09:37 AM   #12 (permalink)
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Re: Gas Smell

Under the rear seat, where the fuel sender is, there is a giant o-ring between the sender and the gas-tank. This giant o-ring tends to deteriorates and swells over time, and it will no longer sealing up the gas-tank, hence the gas-smell.

Simply replace it will cure the problem. It involves removing the rear seat, undoing six 8mm bolts, remove the metal ring that clamps down the sender unit, *very carefully* lifting out the sender unit and swap out the o-ring then reassemble, just like what you will do when you replace your fuel-pump.

Part number: 17342-01A00.

I paid $7.74 for it at the local friendly Nissan dealer. I am sure it will be cheaper if you order it from Greg Vogel @ Quality Nissan.
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Old 02-29-2004, 05:21 PM   #13 (permalink)
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Re: Gas Smell

Quote:
Originally Posted by edsclassic
I had this problem, turned out to be the fueline at the fuelfilter was crackedslightly and was the culprit.
I agree with Ed. I had this same problem on my 2 '91 SE-Rs. Replacement rubber fuel line from Checkers at $.12/inch solved the problem. Of course making the line between the metal fuel line at the firewall and the filter longer makes for easier future fuel filter replacements.
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Old 03-22-2004, 05:09 PM   #14 (permalink)
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Re: Gas Smell

Quote:
Originally Posted by JCCT
Under the rear seat, where the fuel sender is, there is a giant o-ring between the sender and the gas-tank. This giant o-ring tends to deteriorates and swells over time, and it will no longer sealing up the gas-tank, hence the gas-smell.

Simply replace it will cure the problem. It involves removing the rear seat, undoing six 8mm bolts, remove the metal ring that clamps down the sender unit, *very carefully* lifting out the sender unit and swap out the o-ring then reassemble, just like what you will do when you replace your fuel-pump.

Part number: 17342-01A00.

I paid $7.74 for it at the local friendly Nissan dealer. I am sure it will be cheaper if you order it from Greg Vogel @ Quality Nissan.

Just a tip, but disconnect the negative wire from the battery prior to doing this!
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Old 03-23-2004, 12:01 PM   #15 (permalink)
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Re: Gas Smell

i had the same problem also. i just changed the o-ring and it fixed the problem
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Old 03-23-2004, 12:10 PM   #16 (permalink)
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Re: Gas Smell

It's usually an o-ring or hose like everyone else said. Check everything that relates to your gas for cracks, even your gas cap.
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Old 09-04-2005, 02:06 PM   #17 (permalink)
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Old thread but...

Does anyone know off hand what size hose this is (the smaller fuel return hose)?

I don't wan't to cut it until I replace it, and when I measured the metal line with calipers, Pepboys had nothing close.
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Old 09-04-2005, 10:20 PM   #18 (permalink)
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Quote:
Originally Posted by JCCT
Under the rear seat, where the fuel sender is, there is a giant o-ring between the sender and the gas-tank. This giant o-ring tends to deteriorates and swells over time, and it will no longer sealing up the gas-tank, hence the gas-smell.

Simply replace it will cure the problem. It involves removing the rear seat, undoing six 8mm bolts, remove the metal ring that clamps down the sender unit, *very carefully* lifting out the sender unit and swap out the o-ring then reassemble, just like what you will do when you replace your fuel-pump.

Part number: 17342-01A00.

I paid $7.74 for it at the local friendly Nissan dealer. I am sure it will be cheaper if you order it from Greg Vogel @ Quality Nissan.

I bet this is where 90% of you are getting the smell from. This happened to my car, my girls car, my sisters car, and 2 of my buddies cars. we are a nissan family.
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Old 10-12-2005, 09:42 PM   #19 (permalink)
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hmm this just started happening to me as well when ever i fil the gas tank up it smells i replaced the o-ring at work and thought it fixed it but no luck. i did notice sum "sweat" on the side of the tank mite have 2 drop it after all 8-(. gonna chack that little hose next.
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Old 10-12-2005, 10:10 PM   #20 (permalink)
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youd think after 13 years these lines wouldnt start to dry rot or crack
I had the same issue, I found both the lower and uplines cracked, so i decided to change all of them, even the sent and return lines.. now i can live with knowing that my car wont be like johnny storm and FLAME ON!!
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