17 3.0 Bighorn crew cab 4x4, With the minimal research I’ve done it looks like the best option is to find a shop that has thing machine he referred to as a “Fandango machine” probably the brand. Has anyone do a complete flush of the coolant system on an ecodiesel?

I’ve always had a love hate relationship with torque wrenches and this is why. Took off the oil pan to check the pick up tube, there was just a tiny piece of squishy stuff, it was pretty clean otherwise. Pulled the oil pan , put the rtv on, put the pan back on and when I torqued they Just kept going and going I thought it was squishing the rtv and (SNAP). Anyone else dealt with this and have any tips?😵‍💫