My impact driver wont go in forward or reverse what could be prob

I'd be looking for a defective forward/reverse switch, or a bad connection/wire on the forward side between the switch and the motor.

sometimes the forward/ reverse switch gets stuck 'inbetween' make sure it is fully in forward or reverse. you did not attempt to operate it in the video, is it air or electric?

Please try to locate the forward/reverse push button switch. Please try also referring to your users guide. Forward/reverse has a different or separate switch. Thanks for asking.

Some speed sensors will help the transmission know when to switch gears, but with some of the things you describe, sounds like after driving it that long, damage to the transmission has occured. Also, it could be a bad torque converter. There is also something called the transmission torque converter clutch solenoid, causes the car to buck and cut off. Hope this helps, any questions just contact me.

fill it wit oil hold in triger and flick between forard and reverse should free up the vains inside

make sure your e brake is releasing fully,

check fluid if it is a dark color and stinks transmissions probably needs rebuilt sounds like low reverse or direct clutch is bad trna will still go into loe by using forward clutch if low reverse is bad shoul be having problems with 3rd or direct in forward if forward clutch is bad

It is a pretty big job for a weekend mechanic. You will need some special tools > Impact driver, torque wrench, expanding 'C' ring pliers, case splitter and flywheel puller. The entire engine, top end and bottom end must be torn down. Don't try it without the manual. The clicking noise is probably a broken tooth on a gear. ALWAYS replace gears in sets, ALWAYS. The grinding is most likely a bad bearing.

The forward/ reverse switch is hanging up and the rotation of the drill is switching it, then it changes direction. The switch needs a little TLC and a good cleaning. Blow it out.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

Your drill probably has a bad or stripped drive gear. Does the drill operate in forward w/a battery that is not fully charged but yet good.?