I have an 89 tr US car. I drive at least once a weekend roughly 25-60 miles. The cars runs flawlessly in cooler weather 35-50 degrees F. On warmer days it starts right up than after about 10 seconds I get a rough idle and sometimes stalls in the 500rpm range. It usually sorts itself out as the water temp comes up than Is fine. The last two times I went to take out 65+ degrees it really had a hard time warning up with poor power and poor throttle response. Than the next day it ran perfect. However at the end of the ride when I shut down the engine it made an usual sound for 3-5 min. The sound was pretty loud coming from somewhere near the passenger rear wheel well. Originally I suspected suspected it just needed a retune (which is out of my hands mechanicallly) But this sound was something totally new? The second video was prior to me headed out! Any ideas?Vacuum? Maybe it’s common I searched “noise after shut off” and got nothing. Wasn’t really sure how to search it? Forgive my mechanical inexperience.