Petrol Smell

[CMF_musicman]

Hi everyone,
I have owned a micra for 2 weeks now....
I get a petrol smell sometimes, I have checked for any leaks on the motor, all doors and seals, but no sign of anything. Is this a common fault?

 

[CMF_NotAnotherSSS]

First, is the smell you can detect of unburnt fuel? or is it of exhaust gas emissions (burnt fuel)?

Second thing that I'd inspect is the fuel pump service hole.
Lift up the bottoms of the rear seats and inspect the fuel tank pump inspection hole.

if need be, reseal the cover into the cabin with a light smearing of marine silicone.

When i mean light, i mean light! or you'll be in some strife if the fuel pump dies.

Third (and i had this problem), the fuel filler neck overflow tank return tube was blocked. This eventually fixed itself after i filled the tank up a few times. hehe

 

[CMF_NISMO]

you sure you ain't just got petrol on your hands from filling up??

 

[CMF_Micra_King]

I have the same problem that comes and goes but have never tracked down the problem.

 

[CMF_musicman]

Petrol smell is unburnt fuel, the smell after driving on freeway....when I slow down, but I can only smell it if I have the window open otherwise cant ssmell anything..

 

[CMF_Polar]

how do you check the filler return tube bit? i have this problem too sometimes, and kind of got it located to the fuel filling section of the car.

 

[CMF_neilgfoster]

Hi,

Just wondering if you ever managed to work out what this was?

It happended once in my own Micra, and a friend has now mentioned it happening a few times in hers.

Any ideas?

 

[CMF_Alex_B]

yeah i get this too, i can smell it outside the car, and sometimes inside, but intermittently. Will have a look tomorrow if i find the time,

Alex

 

[CMF_micragirl]

Same here but I put it down to my recent fuel problem, the car reeks of fresh petrol when its been locked up for a period of time..perhaps those Ni$$an people haven't put something back properly or its one of those "Ni$$an" things...like the vibrating gear shifter and the rattly parcel shelf and the annoying speedo gauge casing vibe

 

[CMF_Polar]

i kind of found out what mine was, i either have a block or split in my fuel return or breather pipe. as when i have over 3/4 tank of fuel in it can spill down the sides of the fuel tank as i have seen it drip down and the tank is costed in petrol. so least i have seen that it does infact leak and where it is. but i havent paid someone to fix it. i will just never fill to more than 3/4 tank of petrol.

 

[CMF_Yom]

Argh. Yes I get it too.

Especially when I tilt the sunroof open, which no doubt creates a vacuum in the car when I'm moving.

Going to have a play with my tube of Marine Silicone tomorrow.

It *might* have something to do with the lower boot vents which are hidden behind the bumpers too, considering their location in regards to the fuel tank.

 

[CMF_Kirby]

my god! all this time i thought it was just me! everytime i told my girlfriend about it, she just puts it down as my nose being too sensitive. so the petrol smell does happen to loads of people too. how strange...

 

[CMF_vincent]

Hi Guys, I had the same problem with the petrol smell. It ended up being a crack in the fuel tank which i now have repaired.

 

[CMF_Snoopy]

I had the same problem with mine above 3/4 full going around a corner. I pulled the tank out & found a plastic box on top of the tank on the passenger side of it. It had split & cracked so I grabbed some super glue & filler powder & sealed it up, been good as gold for over six months now

 

[cisco]

Damn. I get the odd petrol smell too.

MUST check out this mystery fuel box with a crack in it or whatever it is. Thanks.

 

[CMF_Tony]

When i picked up my micra it had that fuel smell aswell,i drove for afew weeks just putting a couple of bucks in the tank,and when i finally got around to filling it up i got home and noticed a leak.

A week or so later i had the car booking in for a service/check to make sure everything was ok and told the mechanic about the fuel leak,when i returned to pick up the car he told me he could not understand why the micras had so many pipes/filters or something like that,and that even the local 6s and 8s don't have or need setups like the micra has.