fuel smell

Sivstang

Founding Member

Sep 25, 2001

212

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Oct 13, 2006

#1

• Oct 13, 2006

• #1

When the tank is completely full or close to empty I get a fuel oder in the interior of the car. Any ideas? I can't seem to find holes or leaks or anything in that filler neck area.


btw this ia 94 cobra.

 

bill302

Active Member

Nov 2, 2005

2,131

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alabama,gadsden

Oct 13, 2006

#2

• Oct 13, 2006

• #2

check the cap it has vent holes in it and if they get stopped up you will build pressure inside your tank which will cause vapors to escape into other areas, usually when you have this problem you will notice, when you remove the cap to refuel does it ever blow air out of filler neck as you remove cap...and also check the charcoal cannister which is located in the passenger side wheel well. you will have to remove the passenger side tire and plastic wheel well liner under fender sometimes the cannister will fill with fuel when its not working properly...repost results

 

Sivstang

Founding Member

Sep 25, 2001

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Oct 13, 2006

#3

• Oct 13, 2006

• #3

ahh nice thanks for the info, I also notice that the hole that you insert the pump nozzle into they usually have a flap that goes over it and when you insert the nozzle it pushes out of the way then when you remove the nozzle it flaps back over the hole... I don't have mine.. or it has been bent out of the way.

 

bill302

Active Member

Nov 2, 2005

2,131

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alabama,gadsden

Oct 13, 2006

#4

• Oct 13, 2006

• #4

alot of time the problem with fuel smell is the canp solenoid/and or fuel cap see pic. below for location of canp solenoid...but the canp solenoid is in line with the carbon cannister and controls the flow of vapors out of the cannister.its normally closed but when you turn the motor off vapors from the fuel tank flow into this cannister if your gas cap is not purging properly this will push fuel and vapors into this cannister to. but if the cap is fine the canp solenoid may be malfunctioning. after you start the engine the canp solenoid is supposed to open and purge the fuel vapors from the cannister into the engine if its not opening properly the cannister will retain the vapors and fuel.which the vapors will seep out of the cannister into the wheel well and into the cabin aroung the passenger side door jamb area.

 

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Sivstang

Founding Member

Sep 25, 2001

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Oct 13, 2006

#5

• Oct 13, 2006

• #5

awsome thanks. Is tthe canp a dealer only part? If not that I guess autozone or peps boy or which ever would call it a cannistor purge valve?

 

Sivstang

Founding Member

Sep 25, 2001

212

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Oct 13, 2006

#6

• Oct 13, 2006

• #6

Also by any chance could this effect mpg? :|

 

bill302

Active Member

Nov 2, 2005

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alabama,gadsden

Oct 13, 2006

#7

• Oct 13, 2006

• #7

i believe it would be a dealer item and yes it a cannistor purge valve...you also need to pull the codes is your check engine light on? check with autozone they pull codes free if you get a code repost because bad o2 sensors will cause a drop in gas mileage and cause fuel smell too..or you can click on the link below and pull codes i would do this first before purchaseing anything...

http://www.muscularmustangs.com/test1.php

 

bill302

Active Member

Nov 2, 2005

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alabama,gadsden

Oct 13, 2006

#8

• Oct 13, 2006

• #8

pull the codes and we can go from there even if the check engine light is not illuminated you can still have codes...post results...

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

34

129

Oct 14, 2006

#9

• Oct 14, 2006

• #9

I'm with Bill. Pull the passenger inner fender liner and take a look at the charcoal cannister (below the antenna). The hoses are likely dry rotted on top of the canister.

For that reason, grab an assortment of hoses before you begin. You will likely be replacing some (the purge line from the CC to the solenoid tends to rot, for one).
Good luck.

 

Bosko5.0

Active Member

May 18, 2006

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longwood, FL

Oct 14, 2006

#10

• Oct 14, 2006

• #10

bill302 do you think you can fit any thing else in that corner.

also see if any of the hoses are cinked due to age.

 

bill302

Active Member

Nov 2, 2005

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alabama,gadsden

Oct 14, 2006

#11

• Oct 14, 2006

• #11

Bosko5.0 said:

bill302 do you think you can fit any thing else in that corner.

also see if any of the hoses are cinked due to age.

Click to expand...

lol, i have filled that corner up with about 125 horse power...lol

 

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Methodical

15 Year Member

Dec 1, 2003

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Clinton, MD

Oct 14, 2006

#12

• Oct 14, 2006

• #12

If the solenoid is bad the code will be 565.

 

Bosko5.0

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May 18, 2006

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longwood, FL

Oct 14, 2006

#13

• Oct 14, 2006

• #13

its worth every inch.