2005 Nissan Altima rough running and starting

Not at all, only noise heard was from the throwout bearing as the mechanic called it being *Shattered*

I am returning the car to the shop in the morning but I've only had this car about 3000 miles and the slave cylinder has been replaced, now the clutch assembly/throw out bearing. I'm about done with it already. I am just curious what they could have done wrong for these things to suddenly start happening. The steering wheel/steering feels extremely tight compared to before I dropped it off for the repair and the clutch seems really loose which I thought it would be tighter at first but could be wrong.

Only explanation from the mechanic for the screeching was maybe a piece of metal was offset from the repair. And the jumping was "hmmm I dont know." Maybe a simple thing he will figure out but it seems like more is going wrong with it since he "repaired it." Thank you so much for your response. I'm not mechanically inclined but I was thinking the same about a mount. The squeeling can be pretty loud and people mowing their lawns stopped to see what the noise was.

They claim it was the heat shield being bent causing all of the problems.

Both the problems seem to have been resolvedso far but dont believe the jumping came from the heat shield either. Because when I asked him about that he hesitated and replied "oh, yea that may have caused that problem too" like he was trying to make me believe that was the only thing they did wrong was bending the heat shield when they put the transmission back in.

But I'm keeping my fingers crossed that I won't have any other problems from it.