As I was driving down the highway in the Suburban the torque converter disengaged the engine began to rev-up. I was on the highway and slowed down, it then seemed as though the engine timing retarded as it began to backfire. As I slowed I was limited to about 20 mph, with the suburban popping and backfiring and the transmission slipping. After everything cooled off it ran okay but the check engine light stayed on and then the problem returned as the fluids warmed up. Any idea what this could be?
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