Taz 6 SL Tool Head clicking when loading filament, tension issue?

A little more information would be useful…

What filament are you attempting to load? What is the temperature set at?

I think you still have a clog. Have you used different filaments that require higher temperatures before? For example, ABS in the past and now attempting to use PLA?

I don’t have that specific toolhead for my TAZ 6 but I do have an Aerostruder which uses the same Titan Aero hot end and extruder from E3D. I can shine a flashlight in the top of the toolhead and see light in the nozzle (if mounted on the printer, I use a mirror to look up through the nozzle). I’ve also carefully used an “accupunture needle” to check for (and clear) clogs as well.

You can also clear clogs using cold pulls and cleaning filament. IMO, this is the best method for keeping tool heads in tip top shape.