yes
Not enough horse power or in the wrong gear.
The transmission doesn't lose power, but it quits getting power if the clutch starts slipping. Without going into detail about the physics of a clutch, the most energy is being transferred through the clutch when in the highest gear thus it is fifth gear where slipping is first noticed. My guess is its time for a new clutch.
no, the starter is only for starting the engine.
might be trans Catalytic Converter stopped up/broken apart Timing off Plug wires out of order on the cap
You could either be in too high of gear or your (if manual)clutch might be going out.
Any engine will lose RPM going up a hill, its called gravity and the engine has to overcome it. The heavier the vehicle the more RPM you lose. Thats also why transmissions have all the extra gears. Lower gear equals more pulling power and less speed, higher gear is less pulling power and more speed.
The first place I would look is at the timing, a vacuum leak will also have this effect on an engine.
You will lose all power pretty quick and usually there will be a loud knock associated with it.
You will lose all power pretty quick and usually there will be a loud knock associated with it.
Consider: it takes more energy to start moving something from rest that it is to keep something in motion once it is already moving. The reason that a vehicle will lose power while climbing in a higher gear is the same reason that it is very difficult to move from a stop while in a high gear. Those gears are designed for keeping higher speeds constant, and, as such, are not designed for increasing power at the wheels. Lower gears are smaller in order to provide more power to the wheels when it's needed most.
check the CV joints or the transmission is slipping