my dad owns 2 Hyundai's sonata and 2004 santa fe 3.5l 4wd
he getting poor mileage from santa fe and its time for some replacements as stated in owners manual
being a good son i agreed to due tune up
looked up what i thought i needed to know on web (did not find this site till today)
went to parts store got items started tune up
pvc no problem
air fitler and senor no problems
plugs (help me please. also after reading threads i will login into hma service site)
fuel filter (what's up with this is there one or not?)
thanks

 

The front plugs shouldn't be a problem. To gain access to the rear plugs you'll need to remove the intake manifold. I suggest you replace the gasket when you do the job. Identify all the hoses and connectors to put them back where they belong.
The filter is located in the fuel tank. It's part of the fuel pump assembly. It's really a pain to change. Many dealers will tell you that it's a lifetime filter but they will sell it to you any way!?? If you decide to change the filter cartridge you'll need to remove the back seat, remove the pump assy and disassemble the whole thing. Don't forget any gasket when you put it back together and be careful because you don't want those fuel vapors to turn you SUV in a fire ball!

 

Here's a great resource on how to remove plugs. It's for the 2.7L in teh Tiburon but it's almost identical to the 3.5L in the SF.
http://www.newtiburon.com/forums/showthread.php?t=1760