If it is stuck solid, then alternative would be getting a new(used) inlet manifold with a inner /outer EGR part, then you could remove it EGR housing and clean the inlet manifold( and/or smooth out the inlet ports for a slightly better air flow/performance). It will help with the air flow especially if you have a higher milage car due to soot/gunk build up at the inlet manifold/EGR. This would save you some time as well as it would be a straight part swap.
Sorry for the late reply due to not owning a volvo anymore...
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