1994 ford ranger 2 WD auto wont go into gear after over heating trying to get un stuck did i blow the trans? or when it over heats does it flip a relay or something that wont let it go into any gear?

More info? Stick or auto? 2X or 4X? On a hill or no?
Auto could be linkage jammed from no parking brake on hill, or interlock solenoid not working (console).

how old is the thermostat? are any hoses cracked or sucked together. heater core may need to be flushed or replaced? good luck!

might be the linkage not letting it go all the way down. like a bind up

When you put the Shift Handle back into the TOP of the transmission, there is a spring on the Top and it that comes loose, it would cause this.

BTW... it happened to me

Pull the Stick UP, Clean the Ball, make sure all the parts are there and that the spring that you push against is there and reinstall

does it only not go forward or reverse or is everything out? i'm guessing you mean that it doesn't go forward which is common on rangers with autos. the clutches tend to go out and eventually leave you with only reverse then nothing. hope this is of help to ya

gear, rear end gear, 95 may have trans built for fast, 94 could be for towing

If your sure it is acually going into gear than check the auto hubs, they go bad alot. also you can with help from a 2nd person jack the truck up all 4wheels put the truck in 4x4 and drive and see if both drive shafts spin if they do its the hubs if the front one doesnt, its the transfer case

Remove heat shield covering on passenger side of transmission. Pry heat shield from oil pan and then carefully slide it forward to expose vacuum diaphram. There's your vacuum hose!
You can find this and much, much more info in the Haynes Ford Ranger 1993 thru 1997 manual for around $20 at most auto parts stores.

crank sensor or cam sensor

try bleeding your clutch