The wife has a 2000 punto and lately there is a high pitched whine when accelerating in third gear for a couple of seconds and then it stops. Sometimes also in fourth. Any ideas?
Sounds like it could be tensioner bearing failure - have a search for it on the forum. It happened to my old 55 S and is a really high pitched whine only for a second or two at the same revs in each gear.
Could also be the alternator belt. Mine has taken to screeching for about 20 seconds from cold start after a minute, try both these have happened to my car