I have a 01 MCSS, so can someone tell me what the recall was that had Chevy throwing away all the engine covers?

 

Valve cover gaskets. They'd replace with series 3 valve covers and gaskets and take the engine cover if I recall correctly.

 

Was there a adapter for the filler tube on 01's or did they add/take it away?

 

They take it away.

 

they replace the front valve cover and take your engine cover if you have one! I took mine off before I went

 

When I found out what the recall was I told them I’d already fixed the issue. They sent me 20 or so notices and then I called GM Canada and said to stop sending them because I’ll never bring it in to get it done. And that I repaired the car properly.
Never hear from them anymore lol.