I have been in the process of replacing all of my hoses--the one coming off of the pcv on top of the valve cover is stuck--I removed Toyotas spring hose clamp but this one won't budge. Also can I just replace the hose with a standard gates rubber version? I noticed there is a bit of a carbon build up in this particular hose.
Not sure, I might have misunderstood the question but ... take a pair of pliers and REAL SOFTLY grip the hose as close to the end as possible perpendicular to the fitting and rotate the rubber of the hose a few degrees left and right til it moves off of stuck. The hose should be simple to remove then. If not, use a large flat tip screwdriver under the hose and push it off. Be careful to be careful with the pliers; just enough energy to break the bond between the rubber and the metal is all it takes, dont deform the metal or ruin the hose in the process. HTH.