have a wierd problem 1990 accord automatic.When the car is cold the tranny works good untill it [car]warms-- up 3 to 5 minitues then have nothing, no gears forward or reverse shut car off for 10 seconds and when i restart car tranny works good for about a minute, shut off for 10 seconds and it will work again, sounds like a solinoid or electricial problem.... i think if the tranny was shot it would slip all the time any ideas????