Hey guys, my girlfriends car has had two transmission replacements but this time it is out of warranty. It has 138k on the clock and I believe the second transmission was done at 80k.. She doesn't drive the car hard.. I'm going to drop the pan and fill with new fluid.. This problem only happens when the car is at operating temp.. Also right before I know the car is about to shift from second to third if I let off the gas and let the car shift it will go into third perfectly fine, if I give the car any gas when its about to shift into third it slams ... This has been going on for 6 months and has been getting worse. At the beginning it was just a slight bang now its practically neck breaking.. I'm thinking it could possibly be a solenoid? No lights on the dash. Thanks guys.