I did notice though most of the posts i have read stated the machines were purchased in december. hopefully this problem is limited to one lot of parts. Hey, I can dream rite?
It seems there's a common trend and people have reported having the same issue around beginning December. Seems like this affects most new users of snowblowers and new posters. The problem you have described is potentially dangerous in any case.
The Power Clear 180 is a new model for this year so it's possible that all these were of the same production lot. This model is not Toro volume seller so I don't expect them to run multiple production lots for 2009 year.