Not that hard to do. You will just need a little patience, since it is a little tight in that area of the engine.
You will need to remove a few hoses in order to get to it. Also, be careful not to drop any of the bolts down into the engine. You might want to have one of those flexible magnetic part retrievers (I have used mine many times

).
Also, make sure that you know which hose goes where (there are two hoses).