Disregard the above question of mine. I found your post at: http://www.toyota-4runner.org/4th-gen-t4rs/209190-hydroboost-brake-booster-accumulator-run-cycle-history-failure-2.html
My rear hatch rattle drove me nuts for months. It was sometimes a raspy squeak, sometimes a metallic rattle. Thought is was my custom roof rack for the longest time. It was inconsistent but always came back. Wife would drive with me in the back with the plastic rear hatch/door panel off, and...
