My SUV is a 2004, it has stuff on it that I have no idea what the function is supposed to be. However the basics are still there, they have plugs or ignition coils, belts, a cooling system, brakes, and power steering. There are various sensors for the computer that can be hard to find but fairly easy to replace once you locate them. The worst of the problems haven not changed -- parts that are difficult or nearly impossible to get to, and parts that have rusted in place. Some things are just worth letting the professionals fight with, but other things I'll do myself to save that $200 minimum fee that the shops charge. At one point I had a shop replace one of the front axle bearing for me, that cost about $300. Then I started having other things go out and after doing some reading realized the mileage on the SUV was high enough that these parts were due to be replaced anyway... for another $300 and about 2 hours of my time (mostly figuring out how everything came apart) I replaced the other axle bearing plus both of the front axles and a couple other smaller items. If you have the patience and some tools, there are plenty of videos online now showing how to replace this stuff, just start with something small (belts and ignition coils are actually easy) and you might surprise yourself!