Bad gas cap?
Thread Starter
Team Owner
Joined: Jan 2004
Posts: 23,220
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From: HOUSTON
St. Jude Donor '06 thru '15, '19
Bad gas cap?
My gas cap went bad, would not close at all and you could smell gas in the garage when I filled the tank all the way .IT took about 3 weeks before the check engine light came on and its been about a week since I replaced the cap. Wonder how long it will take for the light to clear or is there a way I can clear it? 
Melting Slicks
Joined: Nov 2001
Posts: 3,088
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From: NC
Originally Posted by mojo1
My gas cap went bad, would not close at all and you could smell gas in the garage when I filled the tank all the way .IT took about 3 weeks before the check engine light came on and its been about a week since I replaced the cap. Wonder how long it will take for the light to clear or is there a way I can clear it?
It will clear after a number of on/off cycles.
But do it yourself.
Ignition on but not started
Press Reset to turn off any messages
Press and hold Options
While holding Options, press "fuel" four times within 10 seconds.
It will sequence through all the categories and then you
manually use the "options" or "trip" to go forward or back.
You can record and then hit reset at will to delete the codes.
How much was the cap or was it under warranty?
...George
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Thanks for the info. 
Thread Starter
Team Owner
Joined: Jan 2004
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From: HOUSTON
St. Jude Donor '06 thru '15, '19
Thanks ,
Cap was $20.00 and I did not check to see if it was covered under warranty since it was so cheap I didn't feel like the hassle of taking the car in . 33,000 on the car and its a 2004 so I assume it should have been covered.
Cap was $20.00 and I did not check to see if it was covered under warranty since it was so cheap I didn't feel like the hassle of taking the car in . 33,000 on the car and its a 2004 so I assume it should have been covered.
Thread Starter
Team Owner
Joined: Jan 2004
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From: HOUSTON
St. Jude Donor '06 thru '15, '19
update:
I replaced the cap last week and filled the car up for the first time yesterday .I went out in the garage a few hours after I parked the car and smell gas , I am thinking now I have a problem with the tank itself. Any one else had a similar problem? I have not bolted anything to the car such as an amp or what not but think I have a leaking tank or something else wrong.I did not see any leaks under the car???????
I replaced the cap last week and filled the car up for the first time yesterday .I went out in the garage a few hours after I parked the car and smell gas , I am thinking now I have a problem with the tank itself. Any one else had a similar problem? I have not bolted anything to the car such as an amp or what not but think I have a leaking tank or something else wrong.I did not see any leaks under the car???????
Race Director
Joined: Nov 2004
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From: Central Ma
You could have a very expensive leak in the tank that usually shows up only when full. It is also difficult to find as it only leaks a very small amount. The good news is you are still under warranty. Get this checked out immediately by your dealer.
Thread Starter
Team Owner
Joined: Jan 2004
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From: HOUSTON
St. Jude Donor '06 thru '15, '19
Originally Posted by steve8
You could have a very expensive leak in the tank that usually shows up only when full. It is also difficult to find as it only leaks a very small amount. The good news is you are still under warranty. Get this checked out immediately by your dealer.
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Joined: Sep 2005
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From: Springdale Arkansas
I had the same thing happen to my o4 coupe. The dealer changed the gas cap, and still had the proablem. They run some kind of smoke test and found a crack in the left fuel tank. It took two weeks to get new fuel tank because they had used all the extras they had. Now fixed and I am a happy camper again. They will need to drop your transmission to replace the tank. Paid for under warranty, The bill would have been $1200 had I not had warranty.
Thread Starter
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From: HOUSTON
St. Jude Donor '06 thru '15, '19
Originally Posted by we zoom
I had the same thing happen to my o4 coupe. The dealer changed the gas cap, and still had the proablem. They run some kind of smoke test and found a crack in the left fuel tank. It took two weeks to get new fuel tank because they had used all the extras they had. Now fixed and I am a happy camper again. They will need to drop your transmission to replace the tank. Paid for under warranty, The bill would have been $1200 had I not had warranty.
Drifting
Joined: Sep 2004
Posts: 1,737
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From: Layton Utah
I remember reading a similar post a few months ago. Try doing a search on "gas tank leak" and see if you don't come up with about the same issue. I think the final result was a leak in the tank rather than the gas cap. hopefully the waranty will take car of it. Good luck.
Racer
Joined: Jun 2004
Posts: 295
Likes: 0
From: Edgewater Md.
gas leak
Originally Posted by mojo1
update:
I replaced the cap last week and filled the car up for the first time yesterday .I went out in the garage a few hours after I parked the car and smell gas , I am thinking now I have a problem with the tank itself. Any one else had a similar problem? I have not bolted anything to the car such as an amp or what not but think I have a leaking tank or something else wrong.I did not see any leaks under the car???????
I replaced the cap last week and filled the car up for the first time yesterday .I went out in the garage a few hours after I parked the car and smell gas , I am thinking now I have a problem with the tank itself. Any one else had a similar problem? I have not bolted anything to the car such as an amp or what not but think I have a leaking tank or something else wrong.I did not see any leaks under the car???????
Burning Brakes
Joined: May 2004
Posts: 770
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From: Nassau County New York
I had a similiar problem with my gas cap. I never smelt gas, but then again i never kept the car at my primary residence (no room). But I did look like an idiot everytime i had to top-er off because the cap would never 'catch' so i had to keep spinning/jiggling it until it would click. Free replacement when at the dealer for noisey rear 
Melting Slicks
Joined: Jul 2006
Posts: 2,332
Likes: 31
From: Silver Spring MD
gas smell
Mine was a DRIPPIING LEAK at the FILTER near the filler pipe. Took about 3 hrs to fix and had to remove bolts on the left muffler.
Plastic fuel clips at the gas filter were deteriorating. Jack it up and look at the fuel filter and the hose going into the left tank. Most likely culprits.:
PS get as FRAM or OEM filter not a WIX which they had at NAPA. Use one that looks EXACTLY like the one you take off.
flag: BIGHANK
Plastic fuel clips at the gas filter were deteriorating. Jack it up and look at the fuel filter and the hose going into the left tank. Most likely culprits.:
PS get as FRAM or OEM filter not a WIX which they had at NAPA. Use one that looks EXACTLY like the one you take off.
flag: BIGHANK
Thread Starter
Team Owner
Joined: Jan 2004
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From: HOUSTON
St. Jude Donor '06 thru '15, '19
UPDATE: Took the car in yesterday , the tank is split around the filler the guy told me .They had that fixed late yesterday but I wanted them to check the cooling system as I have smelt anti-freeze a few times at startup , hope the heater coil is not bad but I didn't feel any wet carpet on the passenger side.....
