I just had the tranny rebuilt, nothing too special, and it came out of the shop, been running fine for about three weeks, and now the other night and again today my car refused to shift out of first. I ended up going 40 with the engine doin 4500 rpms and I was like wtf. Shifting to park and back to drive didn't fix it, only thing that fixed it was shutting the car completely off and turning it back on.

It also has occasional trouble starting. Turns over and over but never fully starts, then it'll work perfect for a few days. Anything to do with cold weather? Have about 82k miles on it.