IS IT TRANSMISSION PROMBLEM on 1990 Buick Regal

when i start MY 1989 ITS IDLES HIGH AND SHUTS OFF WHEN I ACCELERATE (NO CAT CONVERTER)

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1 answer
The transmission doesn't effect idle speed, at idle power is not transmitted to the transmission. Power is only transmitted when the torque converter gets up to a certain rotational speed. It will not effect the idle speed. Your problem is engine or engine control related and needs to be checked out. The car should have a catalytic converter but if it not there it is not causing a restriction in the exhaust system that would prevent the exhaust gasses from exiting the engine, which could cause stalling or inability to idle (in severe cases) or accelerate.