Gas Tank Filler Neck Leak -- 92 RS
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Senior Member

Joined: Nov 2005
Posts: 668
Likes: 24
Car: 92 RS
Engine: 3.1 V6
Transmission: T5
Gas Tank Filler Neck Leak -- 92 RS
Ok, so after years of never being able to convince Chevrolet that my car needed the recall fix and living with gas fumes on full tanks, I have my tank out and sure enough it has been leaking at the filler neck for years.. I couldn't prove it by looking under the car because the exhaust heat shield traps the leaking gas and hides it... Oh, great idea huh...
The question is to replace the tank or have the neck rewelded.. Looking for some thoughts from others.. Is there a good source for a new tank.??. I find them on the internet but its not clear about the finish on the inside and outside of the tank.. The old tank appears to have a coating on the inside and galvanizing on the outside.. Can one be bought that way or are all the after market ones just plain steel all around with no coating?
Thanks...
The question is to replace the tank or have the neck rewelded.. Looking for some thoughts from others.. Is there a good source for a new tank.??. I find them on the internet but its not clear about the finish on the inside and outside of the tank.. The old tank appears to have a coating on the inside and galvanizing on the outside.. Can one be bought that way or are all the after market ones just plain steel all around with no coating?
Thanks...
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You might be able to get a radiator shop to resolder it for you.
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From: ms. gulf coast
Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: Gas Tank Filler Neck Leak -- 92 RS
i have done a few on different cars/trucks . it's always easier to re-install an original . good luck . Junior Member
Joined: Nov 2005
Posts: 32
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From: Elk Grove, CA
Car: 1989 Formula 350
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.27 Posi
Re: Gas Tank Filler Neck Leak -- 92 RS
I got same problem and cant pass the evap test here in california. Went to Gm today told the guy about the recall, he looks at my year of my car and laughs, then says theres no recalls for my vin i the computer, bullshit...So I am in the same boat, not sure if I want to install a new tank or try and have it fixed.
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Joined: Nov 2011
Posts: 112
Likes: 0
Car: 89 trans am GTA
Engine: 355
Transmission: T56
Axle/Gears: 3.27
Re: Gas Tank Filler Neck Leak -- 92 RS
I got same problem and cant pass the evap test here in california. Went to Gm today told the guy about the recall, he looks at my year of my car and laughs, then says theres no recalls for my vin i the computer, bullshit...So I am in the same boat, not sure if I want to install a new tank or try and have it fixed.
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Senior Member

Joined: Nov 2005
Posts: 668
Likes: 24
Car: 92 RS
Engine: 3.1 V6
Transmission: T5
Re: Gas Tank Filler Neck Leak -- 92 RS
As to the leaking gas tank, the chev guys will laugh at you and point to their outdated computer system.. Of course it isn't there, they don't want to fix it.. YOU MUST take a copy of the recall document I posted on here some time again.. They can't argue with that.. If they do, take it to the district manager and keep working your way up.. It is a safety recall and they have to fix it...
As to the pressure problem, it is probably that valve in front of the rear axle.. You can find them in cars in junk yards, clean them and they will work maybe..
As to the pressure problem, it is probably that valve in front of the rear axle.. You can find them in cars in junk yards, clean them and they will work maybe..
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