Q&A

when it is slipping, I have to keep it in 2 nd up to 40 - 45 mph then shift it manually into od where it is ok. when slowing down, it is ok if it stays in drive, but if it shifts down into 2 nd it starts slipping. it does this for about a week or so( 100 mi). Then I will start it and it will shift normally for about a week or so. It also seems to have an extra shift between 2 nd and drive (feels like it is a 5 speed automatic)
I'm thinking maybe a sensor is bad (?)
I had it back flushed but did not see any difference. Fluid is about 1/4 inch above the full line on the dipstick when hot.
Outside Temp does not matter nor does trans temp.
Thanks in advance for your help!
Allen R.