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post #1 of 16 (permalink) Old 08-03-2011, 10:33 PM Thread Starter
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Gas fumes after topping off

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After topping off I noticed a small smell of gas fumes in the car while driving and idling at a stop light. After half a tank is gone the fumes go away. I'm leaning towards the EVAP canister, maybe a line is rotted away. Anyone have this problem before?

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post #2 of 16 (permalink) Old 08-03-2011, 11:04 PM
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Probably not evap if it goes away after 1/2 tank. You probably have a crack on the mount for the tank sheild...its about half way up the tank.

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post #3 of 16 (permalink) Old 08-04-2011, 07:56 AM
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Probably not evap if it goes away after 1/2 tank. You probably have a crack on the mount for the tank sheild...its about half way up the tank.

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Or like mine I found the pump/sender gasket was leaking.
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post #4 of 16 (permalink) Old 08-04-2011, 08:17 AM
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Or like mine I found the pump/sender gasket was leaking.
X2. But it depends on if the smell is in the front (engine bay) or towards the rear.

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post #5 of 16 (permalink) Old 08-04-2011, 08:20 AM
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Also make sure the filler neck is secured and doesn't have any holes or obstructions.

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post #6 of 16 (permalink) Old 08-04-2011, 10:17 AM
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Did you get some gas on your hands when pumping?

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post #7 of 16 (permalink) Old 08-05-2011, 09:20 AM Thread Starter
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Also make sure the filler neck is secured and doesn't have any holes or obstructions.
I did some sniffing around and I can smell the gas coming around the tank and neck area. I'll try and see what's up with it today.

Thanks guys!

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post #8 of 16 (permalink) Old 08-06-2011, 08:44 AM
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Sometimes the brazing at the hard lines coming out of the fuel pump hat crack.
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post #9 of 16 (permalink) Old 08-06-2011, 11:42 AM
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The common fail is the vent line that crosses over the driveshaft; Crystal pistol did a post on it last spring, IIRC.

It's at the front of the tank, on top of the drive shaft.

You can reach it without dropping the tank, barely; You have to pull one side to drop the tank.

Here you go:

http://forums.tccoa.com/showthread.php?t=135904

The evap lines go too, but that smell is usually inside the car, or at the front.

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post #10 of 16 (permalink) Old 08-06-2011, 01:44 PM Thread Starter
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Thanks for the info guys. Ill check it out and follow up.

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post #11 of 16 (permalink) Old 09-16-2011, 10:17 AM Thread Starter
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I found you!

This small hose cracked near the EVAP canister causing my problem.


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post #12 of 16 (permalink) Old 09-16-2011, 10:30 AM
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Good deal!

Where on the car is that located?

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post #13 of 16 (permalink) Old 09-16-2011, 10:31 AM
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Good deal!

Where on the car is that located?
looks like passenger front fender well, behind the bumper.

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post #14 of 16 (permalink) Old 09-16-2011, 12:17 PM Thread Starter
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You are correct. This is the same hose that goes up to the intake. So this would also be a vacuum leak.

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post #15 of 16 (permalink) Old 09-16-2011, 02:57 PM
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There are several pieces of hose, iirc that have to be replaced...

One at the canister is bigger on one end than the other.

There's a small piece on the frame rail that splices the two long sections together, and one under the inlet tube at the valve cover.

This is a drag if the car is together...

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post #16 of 16 (permalink) Old 09-18-2011, 04:59 AM
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check the gasket on the top of the tank for the evap fitting my friend chris had the same problem we thought it was the sendor one and it was not.
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