smell fuel

aar0s · 09-30-2004, 08:14 PM

i sometimes smell gas in my car and cant find a leak anywhere. could bad o2's make my car run rich and me smell fuel from the pipes or could it be from the vent tube?

88fivepointoh · 09-30-2004, 08:36 PM

If it smells raw then you have a leak, under the hood or elsewhere.. if it smells burned, then your running rich.

crazypete · 10-01-2004, 07:29 AM

If it's an outright fuel leak, that should be easy to spot since the system is highly pressurized.

The other 2 usual suspects are

1. The hose that runs into the charcoal canister. This tends to detach and then the gas tank fumes get vented up front. It's a small black box on the passenger side of the enginebay to the right of the radiator shroud. It has 2 bulbs on top (or two openings if the bulbs have fallen off) and a hose running to it.

2. The little shroud around the filler neck detaches after a while and then when you filler up, some gas pours past the seal into the inner rear 1/4 panel. This causes a ridiculous stink.

If the engine was that off, you'd have a check engine light and some codes stored in the computer. Just check the exhaust. If it's clear, you are ok. If it's grey or black, your're running rich.

aar0s · 10-01-2004, 07:57 PM

hmm well a errent blade off a flex fan cut a big gash in my canister a few years ago but the smell is coming from the back so ill have to check the filler neck thing

Scrapla · 10-02-2004, 07:55 PM

I had the same problem with my car and it turned out to be a leaky fuel injector, if all else fails check ur injectors while or right after your cars been runnning just look for a wet injector or a fuel puddle on your manifold.

aar0s · 10-04-2004, 06:33 AM

what happens to the fuel after it leeks into the 1/4? does it drain out anywhere?

09-30-2004, 08:14 PM	#1
aar0s Registered Member Join Date: Nov 1998 Location: southern Illinois Posts: 312	smell fuel i sometimes smell gas in my car and cant find a leak anywhere. could bad o2's make my car run rich and me smell fuel from the pipes or could it be from the vent tube? __________________ 88 gt convertable =-= cobra intake, accufab 65 mm tb headers alum underdrives steeda alum.lca's, springs, c/c plates kyb struts 230 hp to da wheels http://www.cybersteed.freeservers.com

10-01-2004, 07:29 AM	#3
crazypete Registered Member Join Date: Sep 2002 Location: Boston Posts: 592	If it's an outright fuel leak, that should be easy to spot since the system is highly pressurized. The other 2 usual suspects are 1. The hose that runs into the charcoal canister. This tends to detach and then the gas tank fumes get vented up front. It's a small black box on the passenger side of the enginebay to the right of the radiator shroud. It has 2 bulbs on top (or two openings if the bulbs have fallen off) and a hose running to it. 2. The little shroud around the filler neck detaches after a while and then when you filler up, some gas pours past the seal into the inner rear 1/4 panel. This causes a ridiculous stink. If the engine was that off, you'd have a check engine light and some codes stored in the computer. Just check the exhaust. If it's clear, you are ok. If it's grey or black, your're running rich. __________________ 91 GT Carb conversion, holley 600 double pumper, edelbrock performer intake, FMS "C" drop springs, march 1000 underdrive pullies, crane 1.7 roller rockers, GT-40P headers, bassani x pipe, american thunder catback, FMS 4.56's, msd aL6, trunkmount battery, A/C eliminator kit, 3000 stall tci streetfighter, AOD with transgo kit, A+ servo, 300M hardened lockup shaft, kevlar bands and 28,000 gvw trans cooler, 3 core radiator, 300 lbs stripped with a full interior

10-01-2004, 07:57 PM	#4
aar0s Registered Member Join Date: Nov 1998 Location: southern Illinois Posts: 312	hmm well a errent blade off a flex fan cut a big gash in my canister a few years ago but the smell is coming from the back so ill have to check the filler neck thing __________________ 88 gt convertable =-= cobra intake, accufab 65 mm tb headers alum underdrives steeda alum.lca's, springs, c/c plates kyb struts 230 hp to da wheels http://www.cybersteed.freeservers.com

10-02-2004, 07:55 PM	#5
Scrapla Registered Member Join Date: Apr 2002 Location: Florida Posts: 532	I had the same problem with my car and it turned out to be a leaky fuel injector, if all else fails check ur injectors while or right after your cars been runnning just look for a wet injector or a fuel puddle on your manifold. __________________ 90gt 347 and some bolt ons :-) RICE HATERS MEMBER #73

10-04-2004, 06:33 AM	#6
aar0s Registered Member Join Date: Nov 1998 Location: southern Illinois Posts: 312	hey pete what happens to the fuel after it leeks into the 1/4? does it drain out anywhere? __________________ 88 gt convertable =-= cobra intake, accufab 65 mm tb headers alum underdrives steeda alum.lca's, springs, c/c plates kyb struts 230 hp to da wheels http://www.cybersteed.freeservers.com

09-30-2004, 08:36 PM	#2
88fivepointoh Registered Member Join Date: Aug 2002 Location: Rochester Posts: 553	If it smells raw then you have a leak, under the hood or elsewhere.. if it smells burned, then your running rich.

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