I just changed the spark plugs for the first time on my 2002 Santa Fe 2.7 V6. What a bear!! Perhaps I went about it the wrong way, but it looks like the easiest (if you call it that) way to change the plugs in the back is by pulling off the surge tank of the intake manifold. But, that also requires you to change the manifold gasket as well. I went ahead and changed out the plug wires while I was there.
Anyway, if anyone has a different approach, please reply to this post.
Sadly, taking off the manifold and changing the gasket is very common in changing the back spark plugs on a lot of the Hyundai V6 engines.
What a pain that job is, especially compared to the 4-cylinder engines. I had a Chrysler that had it so that all of the six were basically on top of the engine, though with very, very long plug boots. The car was otherwise a dud, but the easiest FWD V6 plug change I had ever seen.
Many of these V6's just aren't worth the effort unless you are sure of your mechanical abilities (which I am not).
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