random gas smell in 1990 audi 100
05-02-2008, 02:06 PM
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random gas smell in 1990 audi 100
every once in a while i will get a strong odor of gas which i think is coming from the rear of the car. i see no leaks around the tank and if i open the trunk it smells fine. i am thinking it may be the fuel pump access on top of the tank but wouldn't the trunk smell too? anyone ever have this problem? funny story, a couple of weeks ago one of my buddies who owns a 2005 vw golf drove the old audi after i had a few too many beers and praised the car for its luxery and driveability, and it would be so much better to own than his golf, i couldn't agree more!!!
05-02-2008, 03:24 PM
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Re: random gas smell in 1990 audi 100
Probably the beginnings of either a fuel tank or a fuel line leak.
Every time that started on one of our Audis, it ended up developing a leak.
In fact, I have one of our V8s on the hoist right now getting ready to fix a little leak that suddently became substantial--rotted fuel line.
Every time that started on one of our Audis, it ended up developing a leak.
In fact, I have one of our V8s on the hoist right now getting ready to fix a little leak that suddently became substantial--rotted fuel line.
05-03-2008, 06:14 AM
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Re: Yeah I have a leak to track down in my V8 as well
Could be the O-Ring that seals the access opening or the flexible hose connection of the filler pipe to the tank. Does it still leak after you've driven 20-30 miles? If so, more likely the seam where the top and bottom halves of the tank are welded together. There's a lip all around the tank at that juncture that gathers crud and gets rusty.
05-03-2008, 12:14 PM
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I've stopped topping it up, seems to not happen when only 3/4 full
so I'm hoping it's the O-ring (fingers crossed). I can see gas dripping down the front of the spare tire well underneath the car when it leaks but can't quite see where it's coming from.
05-03-2008, 01:33 PM
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Same thing on the V8 I just picked up. Leakes were the two halfs meet
on the driver side....rite above were the mid muffler would be.
You might be able to repair it with a sealer of some kind. If it were my car I would replace the tank.
You might be able to repair it with a sealer of some kind. If it were my car I would replace the tank.
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