I have a month and a half old Jazz 09.
Two weeks ago I accidentally downshifted from third to second, the engine screamed (I'm not sure if it crossed the red zone) and I immediately slammed the clutch and waited for it to calm down. Then everything seemed normal, but after some time a ticking noise started developing in second gear, at high revs (above 4500, but sometimes even lower). Also, the engine seems a little louder at any speed, though I can't notice any change in performance.
The mechanic listened to the engine and said there was no problem, but I'm not so sure.
Any suggestions? What have I damaged?