High RPM and jerking when shifting out of park

[Evil_Gnome]

I have a 2008 Nissan Rogue with around 111,000 miles. The CVT transmission locked up, and I had a re manufactured transmission put in by a transmission shop. I noticed when I shift out of park more so in reverse the car jerks or shifts hard. I noticed when I start the car up the rpm’s are at about 2,000. If I let the vehicle idle for a minute the rpm’s drop to about 800 or 750 and won’t jerk / shift hard as bad.

I’ve changed the valve cover and gasket. I replaced spark plugs and boots. I replaced serpentine belt and belt tensioner. I also cleaned the throttle body.

Any help is appreciated, when I told the mechanic shop about it they said it’s prolly a motor mount. However tried to do some research and I saw something about a throttle body relearn procedure, but I’m unsure.

[VStar650CL]

The tranny shop probably didn't load the IP Char values for the new Valve Body into the TCM, so the TCM is operating with bad data for the solenoids. There's a myth out there among tranny shops that Nissan CVT's "self-relearn", but that's false. If you look on TM-9 here, you'll see the procedure for loading the new IP's (this is from the '09 FSM, but the '08 is identical):
https://www.nicoclub.com/service-manual ... %2FBCS.pdf

It takes a dealer Consult3+ or a very high-end shop scanner to put the TCM in "learn" mode, so you may not have any choice but to visit the dealer.