My friend is selling one for $1000 firm. A 97 Accord SE automatic, it has new water pump timing belt, spark plugs and other things. But the car needs a Crankshaft Positioning Sensor. My mechanic already told me its an easy fix. But the car has a bad front motor mount. What's the worst that can happen if I don't fix it, and what does the mount do. I'm sorry for the two stupid questions but just curious before I buy.