This is a bunch of shit!
It has been hot (90+) here the past few days. When the transmission gets up to around 160 degrees fourth gear either kicks in late or I have to back way off the gas for it to engage and at times I am just barely on the gas. All other gears engage with no problems. It's not slipping from what I can tell in fourth gear and the torque converte locks as it should. If I tap the brakes to unlock the converter I have to back off the gas a little to get it lock back. At anything below around 155-160 degrees the transmission works just fine. When its not hot it kicks into 4th just fine and the torque converter reengages without me having to back off the gas. Any ideas or suggestions? Thanks!