Transmission slips in and out of gear in reverse or drive only when I first start it. I can crank it up put it in reverse without touching the gas and it will push me for a second and stop push for a second and stop, does the same thing in drive too well after it does it about 20 times it will stay in gear and I’ll be able to drive it anywhere i want without slipping or jerking or the entire time it’s like when it warms up it’s completely fine. There’s no check engine light on and if I’m on the interstate doing 70 75 with the rpms right at 3000 I can bump the shifter into neutral and let off the gas and it will stay idled at 3 grand and sometimes go up higher, not sure if this has anything to do with the transmission problems. I’ve recently put a 02 sensor on it and I changed the throttle position sensor also tried resetting the computer the day the transmission started acting up. Does anyone have a similar problem or know anything to help me?