Transmission will go in 3rd gear and stays there till i turn car off and restart it then it will work fine for awhile.,transmission seems to work fine till this happens.

The only way to diagnose is electronically by asking an auto electrician to scan it with a pro grade scan tool computer. They can also record what is happening on a drive! It sounds a mess for sure, mechanical and electrical and the computer can diagnose both.

https://www.google.com/search?q=mobile+auto+electrician+near+me

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Probably a valve body worn out. Should probably rebuild he whole thing.

Depends on car. Sounds like it's in limp mode. Computer may need to be reflashed

syncranizer is bad but it aint high your welcome.

Sound like you have a burnt 3/4 clutch. It will need rebuilt or replaced.

been awhile since posting..., try Solenoid A...better yet, the Trans fuse...

I have a 2002 Hyundai Sonata and I had the same problem. But mine would always shift into 3rd gear and STAY there until I turned the car off. I took it to a Hyundai dealer and he had to rewire a speed sensor on top of the transmission. Apparently a little animal got up in that tight little spot and gnawed on my sensor wires. The car has run fine since. To make a long story short, it might be your speed sensor on your transmission.

the neutral safty switch tells the comp. what gear is in. when its not working the light wont move and the car will not go threw the gears prop. the switch is nown to go out. it is located on the tranny or down under the shifter

your shifts correctly, as your driving it downshifts and stay stuck at that gear when u stop and try to take off but intell u turn off your car and restart it it shifts correctly intell a few mins later. i am thinking that is a speed sensor (out signal problem) mounted on top of your transmission next to the battery tray, you will see couple of cable linkages next to it ...

I have a 90 lebaron when i first take off and it shifts good till i hit 3rd it wants to jump until i get about 35 then it will drop ito low even if im going 45 or 55 mph what would cause this.