[SnineT]

I had it go in a Cavalier and that was a hose some plank positioned across the exhaust manifold protected by a flimsy heat shielding made of bacofoil,

My Insignia it died in as well after about 8 years of age, I suspected the clutch as it wouldn't spin at all, I didn't chase it as it was beyond economic reasoning for me,

If you want to test the clutch it's on the pump at the bottom of the aux belt circuit, simply with the engine off try to turn the central part of the pulley, the part of the pulley the belt is on won't move it's the metal inner face you need to spin,

Another thing that stops it is the intercooler aka radiator, if this blocks up inside it trips the safety shutdown, however sometimes it's as simple as too many dead bugs blocking the fins and gentle cleaning can get it working again, the bugs stop it cooling properly and then the safety kicks in.