Huskerbob

I'm confused as to the exact location of the rollover valve. This is a repost from the A4 (B7 platform) discussion. I have a faint gas odor near the gas cap area but I have a new gas cap that should be sealing well. Mine is a 2001 A6 2.8l Quattro Avant. Not eligible for the recall according to Audi NA.

Quote:
Originally Posted by s4master1
the rollover valve which is attached to the filler neck of the tank

Is the rollover valve sitting on top of the tank under the back seat or is it up by the gas cap?

Huskerbob

Never mind, it was a leak in the overflow tank by the filler neck. I got a patch kit from Tech-Bond and that did the trick. No more code and no more leak. If you need to fix a leak in any of the plastic tanks on your vehicle get to Tech-Bond and Don will have the product for you. Nothing else will bond polyethelene or repair it but this stuff will.

jcman

Great to hear all went well with the repair, just wondering what code you were getting?

SloopJohnB@mac.com

Probably work on the coolant expansion tank and the windshield washer bottle too.......

SloopJohnB@mac.com

Source: http://www.tech-bond.net/

Huskerbob

I believe it was 0442, small evap system leak and then it changed to large evap system leak 0455. The kit from Tech-bond is doing the trick. Now when I remove the gas cap it makes a nice hissing sound where previously it did not.

Huskerbob

Yes it will work on both of those. It will also stick your fingers to the repair, don't ask, so make sure to wear rubber gloves or be extra careful.

SloopJohnB@mac.com

LOL---look at the funeral services section of the tech–bond website...macabre!

Huskerbob

and taxidermy too! Hey, an adhesive that can hold that stuff and my fingers together must be pretty good!