Thomas, thank you so much for the help!! This is exactly what I needed
It looks like the clutch is bad on my motor.
Did you replace your motor with the GS300 one (89672-30020)? Did you have any issues? The OP in the thread below said a grommet size was different? What is he talking about, I assume it is this?
Does the entire throttle body need to be removed because it is impossible to gain access to the lower mounting screws for the cover that goes over the TB motor? I guess it was different on the older 1UZ motors and there was enough room to get in there, so I cannot keep the TB installed as shown in the .pdf linked below?
Also, I assume that I will need to bleed the cooling system afterwards because I have to disconnect that small hose in order to remove the TB. To bleed the system, do I just let the car run with the radiator cap off and the heat all of the way up?