Walls1887

i have a 2005 silverado crew cab z71 auto trans.
i was driving down the road about 40 mph. all of a sudden its like its in neutral. so i shift it down to 3rd and it works fine. i go about 1/4 mile and let off the gas to turn, when i give gas again, same thing.
so i shift to 2nd. 2nd works fine.
once i get started in 2nd i can shift to 3rd and it will work most of the time.
while driving i put it into 4wd high, once it engaged i shifted to drive and it started working. while in drive i go back to 2wd and it keeps working. i only did that once. i only drove about 5 miles since this has happened. i backed out of drive way, put it into 2nd, it made a few noises and then stopped. other than that there were no strange noises, just no drive or third gear unless i go through steps.
i checked transmission fluid and the level looked fine.
If anyone can shed any light on this i would really appreciate it.
Thanks

Allan In NE

First order of business is to pull the codes to see what is going on.

Allan

Walls1887

Check engine light is not on.
So would a regular code puller do this?