Context: I just drove my car pretty hard around a track, did a cool down lap (minimal breaking) and parked it. I was about to go put gas in it after letting it sit for 20-30 mins and noticed that when I put it in drive, after 5 seconds or so, the engine developed a stutter (put it in drive, someone rolled up, rolled my window down and noticed it after starting a conversation). Putting it back in park eliminated the rough idle. I drove it home and every time I came to a stop, 5 seconds or so later, this rough idle occurred. When it occurs, it's in pulses. Smooth idle (3-5 seconds), rough idle (3-5 seconds), smooth idle (3-5 seconds). Car drives fine though... Any ideas? Vacuum leak? Brake booster?
I'm going to go poke around, but I was curious if anyone else has ever experienced this and can save me some time.
I'm going to go poke around, but I was curious if anyone else has ever experienced this and can save me some time.
