Regarding valve adjustment ….
2000 Acura TL
At about 150K, my brake pedal would kinda bleed down while I was sitting at a light. Replacing the master cylinder didn’t help, and because it wasn’t horrible, I lived with it.
Fast forward another 50K, and I had the valves adjusted during a timing belt replacement. Not only did the funky pedal go away, but I could crest that hill on my morning commute in 4th instead of third.
My conclusion? The brake pedal deal was vacuum related, I guess.
Thought I’d share. 🙂
Keep up the good work, Eric … Loving what you do!
Bob