Originally Posted by webie
If I remove the EGR valve for cleaning, do I have to put a new "seal" (gasket)?
Um, call the dealer. I'm not sure. I'd say so because they probably cost like $.30.
I run seafoam every 30k...even if she's running perfect. It only costs like $3 a can (so $2 to treat my gas and intake) and can't hurt anything. I swear by that stuff. Every engine has carbon deposists, might as well clean them out before they get bad enough to set off a CEL.