Possible transmission issue?
Okay, first off:
2008 Honda Fit (G1 standard/non-Sport) at ~128,000 miles, regularly taken in for maintenance and other oddball issues*
Yesterday morning, my check engine light came on. Okay, I'll take it to the shop. But then the "D" on the gear indicator started blinking at the same time, which I don't think I've gotten before. Skimming some Google and FitFreaks results suggest there's something up with the transmission. On the drive home, it also wouldn't shift up at speeds around 55mph, and just this morning it shuddered a bit on shifts getting up to speed from a stop.
So okay, it sure seems like a transmission issue. So I took it somewhere near work, and I think they said it was a sensor issue that'll require a rebuild to the tune of ~$2,700(!!!). As my wife points out, my car isn't even worth that much anymore.
Looking for a second opinion at this point before I do anything crazy and/or dumb. Also looking to just talk about it with someone receptive so I don't get goddamned heart palpitations.
*"No, I'm saying the seat latch isn't working. You know that little handle that unlocks the back seat so it can fold down? Yeah, that thing."