Well Ive pulled off the entire intake and am ready to replace the thermostat but...... one last stupid bolt i can't get. Can somebody help me out? Im sure if you've replaced the thermostat, you know which one Im talking about. Its almost directly under a metal water pipe.

Anyway, my update is that I've replaced the gasket in the common chamber to the lower intake manifold only because the gasket pack I got had that one in it too. My intake was so nasty that scrubbing wasn't working so I used engine degreaser and power washer and its shiny clean now. Immediately after I gave it a light coat of WD40 for rust protection. I took off my fuel rail and cleaned it all out and lubed the O rings to slide back in nicely. I talked to a shop and asked how I should clean out the injectors and he said that injectors rarely get clogged anymore but when they do fail, its because of the solenoid or electrical interruption so I just let them be.