transmission problem on 1990 Acura Integra

Actually is an old 1987 Integra with only 135,000 miles, driving the gears slips goes back to neutral then I stop the car for 1 minute starts it then it drives but looses gear again after 10 seconds of driving. The fluid is full. Its an automatic. thanks.

Asked by for the 1990 Acura Integra
1 answer
Unfortunately it sounds like a serious internal transmission problem.