Tune up help 05 Sorento

[mroverunder]

I'm used to doing tune ups on older cars... replace sparkplug & wires & it's done. However these newer models with the coil packs, cylinder & whatever else I'm not sure what all I need to replace. Help please

[rhandwor]

I would replace the spark plugs when needed. Ohm the three plug wires if defective replace. As the three coils fire two cylinders at a time if not working you will loose two cylinders. They fire on intake and exhaust stroke. Auto Zone and Advanced Auto will scan the engine for codes free.
Purchase a Haynes manual at the parts store you will need if not familiar. Be careful a lot of people get in a hurry and break wiring connections.