3.4 V6 owners, from a speed of 45+ mph, push in the clutch (or shift into neutral if you have an auto) and note what the RPMs do as your speed declines to 0. (Engine should already be warm when you do this.)
When moving at 30+ MPH my RPMs will consistently stay at 1500, then below 25 mph or so the idle slowly comes down until stopped when the idle returns to the normal 700 RPM range. I never noticed this before and I'm wondering if it's simply because the engine is being force-fed air when moving or if something went wrong during my TB cleaning. Idle is perfectly normal at all other times.
Oh, and please don't crash when trying this. Thanks!