Originally Posted by slide4417
Somewhere I read "better to let the service center do it"
I've changed plugs in anything I've come across from my '70 Camaro...up to my 2001 Volvo. Does the Santa Fe have any of the goofy "remove engine mounts and jack up engine 5 inches" kind-of stuff? If its a whole-day knuckle scraper....I'll bring it in. If I need only my spark plug socket on the ratchet wrench....I'll change 'em
Anyone been there, done that??
Well, it's certaintly is no small block Chevy but you don't have to remove the engine to do it. However, you do have to remove the upper intake manifold (AKA Surge Tank) to access the rear 3 plugs. And while some will reuse the manifold gasket, it's a good idea to replace it. Once the manifold is off then you can access the plugs by removing the coils over each plug.
Here are the instructions for removing the upper intake on a 2.7L Tuburon. While not 100% identical, it gives you the basic understanding of what needs to be done:
Here are the instructions to doing it on the 3.5L in the Santa Fe:
REMOVAL1.Remove the air intake hose connected to the throttle body.
2.Remove the engine coolant hose and throttle body.
3.Remove the P.C.V. hose and brake booster vacuum hoses.
4.Disconnect the vacuum hose connections.
5.Remove the surge tank stay.
6.Remove the surge tank.
7.Remove the surge tank and gasket.
Surge tank stay :
15 ~ 20 Nm (150 ~ 200 kg.cm, 11 ~ 14 lb.ft)