Impreza STI 2009
I cured a petrol leak around the fuel tank which was traced to the 8 hole metal bracket/lid holding the gasket which seals the petrol pump/filter to the top of the tank. It was rusty. The rubber gasket itself was good.
Peering in to the tank floating around loose on the floor was what looked like a large Havana cigar shaped metal filter. I have searched the forums, parts, YouTube videos etc and can't find any mention of this item.
Does anyone who has been in the fuel tank know what I am talking about and if so what is it doing and why is it there? Is it to be left alone or has it become detached from somewhere?
Thanks

 

Joined 13 years ago and 1st post today,,SN record?? Lol

Did you take a pic of the floater? Or pull it out to investigate?
I've seen similar to what you describe,slow release octane booster springs to mind.

Btw welcome along

 

Wow that is a record. I'm surprised your having rust problems on a 2009 Impreza.

 

There's is an In tank filter that can be replaced available genuine part, it would help if you have any pics of your findings

 

Didn't occur to me at the time that it was unusual and assumed it was there for a reason so left alone and no pics.
The car has done 2 or 3 trips across France and up into the Alps every winter since new.
I suspect despite hosing down underneath after each trip the hose just doesn't get to the top of the tank but the salty spray off the road does.
I recall on one occasion driving along the fast lane of the autoroute through 6 inches of soft slush, (blocked the front airvents!)