'98 Chevy Z71, 5.7 with auto trans... bought it new and now have 76K miles... all 3 of the incidents have occurred after driving on the interstate for several hours, usually after long trips towing my bass boat. When I exit off and come to a stop everything seems fine. It's when I go to take off again the transmission slams into each gear as if there are no clutches, bam, bam, bam, in each gear and it will not shift into overdrive. Yesterday was the 3th time this has happened since I bought this truck... I've learned to "fix" the problem by stopping, turning off the engine and restarting it.. alls fine again..
Anyone have an idea of what it might be? Could it be the torque converter not disengaging after slowing down and stopping? My guess is the computer just farted and needs to be reset by turning it off and on again...