How often do you guys adjust your valves on a 3.0? I have never had min adjusted. WHen i bought truck timing belt was recently replaced, then when water pump went bad i changed it again, whilke it was apart. Plugs, wires, dist cap/rotor, were changed last year with all toyota/denso parts and i really didnt notice any change at all. Truck is a little harder to start than when i first got it. I never had injectors cleaned on pulled and cleaned TB. While running it has a little roughness to it. Not really noticeable unless you feel the vibes on the engine, and hear through sound. Gotta listen good. I know its different from when i first got the truck back in High School.