Automatic Transmission

Can someone tell me what the hell is going on with my transmission? I had a trans put in a few weeks ago and now my car is not the same. Everytime the car sits for a few hours and I go to start it and put it in drive...my rpms goes to 2K-3K and my car barely moves. It will only do like 10-15mph. Now when I floor it, the trans shifts roughly and kicks in. When I am driving the car for like 5-10min...the trans shifts ok. What could be the problem? Is there something wrong with my trans or did the mechanic fuck something up in the installation. Please help, because I have been dealing with this for three weeks..and the mechanic is telling me everthing is fine. This situation only happens when the car is not driven for a few hours.

holla,
:help:

Just an idea. What fluid did he put back into the transmission? And has it done this since you got it back?

There is something with the Valve Body that why it doing that by the way that inside the Transmission sorry for the bad news

did you get the tranny inspected b4 he put it in

was the tranny new when the guy put it in?
check your trany fluid level, it sounds like it is low.