Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by:
Sponsored by: CARiD

What else would cause gasoline smell???!!!

Old Jan 27, 2007 | 08:16 AM
  #1  
Matthew91-Z28's Avatar
Thread Starter
Supreme Member
20 Year Member
 
Joined: May 2002
Posts: 1,333
Likes: 1
From: Texas
Car: 1991 Z28 Convertible
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.23 with Eaton posi
What else would cause gasoline smell???!!!

Tired of throwing money at this. New tank and pump as of 6 months ago. Cant remember when exactly this smell really began nagging me. I always smell raw gas right next to the driver rear wheel well (especially after long trips).

Here's what I have replaced in the past couple months:
Charcoal canister
Fuel Filter
Fuel tank vent valve
Gas cap (non vented)

I have checked the lines around the tank and in the engine at the rail and find no leaks. Maybe I got one of those bad fuel filters. Cant remember what brand I recently installed. I'll take another look today.

But if its not that, what else could it be??
Reply
Old Jan 27, 2007 | 08:52 AM
  #2  
SpitotRs305's Avatar
Supreme Member
 
Joined: Oct 2006
Posts: 1,974
Likes: 0
Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
if you are smelling gas in that area it is from the evap canister all though you replaced it it is coming from the canister did you happen to put a new charcoal filter in the bottom of it when you replaced it... looks like a very big tea bag only dont try and make tea with it...
Reply
Old Jan 27, 2007 | 09:36 AM
  #3  
bobdole369's Avatar
Member
 
Joined: Oct 2003
Posts: 405
Likes: 0
From: South Florida (NW_Broward)
Car: 1989 Firebird
Engine: 2.8L V6 MPFI
Transmission: Beat to heck 700R4
I always smell raw gas right next to the driver rear wheel well (especially after long trips).
A one-way vent (check valve) is supposed to exist on the end of a rubber line that comes from the top of the gas tank. The valve is above the driver side rear axle.

Its supposed to only let air in, not gas smell out. Maybe your valve is missing.
Reply
Old Jan 27, 2007 | 11:06 AM
  #4  
SpitotRs305's Avatar
Supreme Member
 
Joined: Oct 2006
Posts: 1,974
Likes: 0
Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
ah missed the rear wheel part
Reply
Old Jan 27, 2007 | 10:29 PM
  #5  
Matthew91-Z28's Avatar
Thread Starter
Supreme Member
20 Year Member
 
Joined: May 2002
Posts: 1,333
Likes: 1
From: Texas
Car: 1991 Z28 Convertible
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.23 with Eaton posi
brand new gm valve installed a week ago. Still smells like raw gas.

I replaced the o2 sensor today and found lots of my poor performance was from FILTHY K&N filters. Cleaned them tonight and noticed a big diff.

Hopefully, now that im getting air in to burn that gas I wont smell it anymore!
Reply
Old Jan 27, 2007 | 11:48 PM
  #6  
Gramps's Avatar
Senior Member
iTrader: (1)
 
Joined: Nov 2006
Posts: 830
Likes: 0
From: Victoria BC Canada
Car: 87 Camaro IROC
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 3.23
i got used to the smell after about a year, i think in my case its my evaps canister. my gf and i cant smell it ne more, but when i had to take my drivers exam, the woman nearly passed out from the bad smell. point being, you should mayb find somebody to sniff it out if you can still smell it, women have a heightned (sp?) sence of smell compared to men.

how would one know when the valve on the tank is gone?...when they unscrew the cap and all this pressure is released?
Reply
Old Jan 28, 2007 | 11:13 AM
  #7  
Matthew91-Z28's Avatar
Thread Starter
Supreme Member
20 Year Member
 
Joined: May 2002
Posts: 1,333
Likes: 1
From: Texas
Car: 1991 Z28 Convertible
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.23 with Eaton posi
you will get some pressure when opening the cap, especially on a hot day. All i know is that replacing the valve is part of the trouble shooting for gas smells.

I should have my lady sniff it out. Thats probably a really good idea. I now wish id gotten in before the gas tank recall stopped.

I really think the problem was not enough air through the intake and a fouled o2 sensor (it had been close to 70k mi since i changed it).

Ill check it out over the next week. If thats not it, its got to be something with the tank itself or the shop did a not so great job of sealing the new fuel pump in the tank.
Reply
Old Feb 24, 2008 | 12:52 AM
  #8  
dman29's Avatar
Junior Member
 
Joined: Jul 2006
Posts: 1
Likes: 0
From: PA
Car: Z28
Engine: 5.7
Re: What else would cause gasoline smell???!!!

did you ever fix the problem i am in the same boat
Reply
Old Feb 24, 2008 | 07:27 AM
  #9  
jamon8's Avatar
Supreme Member
iTrader: (3)
 
Joined: May 2005
Posts: 1,942
Likes: 0
From: Southern IL
Car: 88 GTA "Cocaine"
Engine: 350 tpi
Transmission: 700r4
Axle/Gears: 3.27
Re: What else would cause gasoline smell???!!!

I just had my gas tank replaced by the dealership under the recall like a year and a half ago
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
GeneralIesrussi
Carburetors
6
Jun 20, 2024 07:21 PM
Twin_Turbo
LTX and LSX
50
Mar 14, 2016 10:10 PM
Dwayne614
Tech / General Engine
11
Sep 29, 2015 11:05 PM
Racerx974
Tech / General Engine
7
Sep 19, 2015 10:16 AM
Glowsock
Tech / General Engine
2
Sep 11, 2015 11:09 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 06:01 AM.