You really should try to take somebody that has a good set of ears and possesses a decent knowledge base on cars with you, or as another option you could look up a mechanic or shop in the area in advance and arrange to pay an hour's worth of shop labor to have the car looked over. It could work out to be very cheap insurance for you.
If the car needs a new engine, you can usually find used ones for $1000 or less. Not sure what a shop might charge for the swap, but if you diy it could happen over the course of a weekend.
Of course that's just a worst case scenario that it would need a new engine. You'll obviously need to go see it before you'll know much more.
If the car needs a new engine, you can usually find used ones for $1000 or less. Not sure what a shop might charge for the swap, but if you diy it could happen over the course of a weekend.
Of course that's just a worst case scenario that it would need a new engine. You'll obviously need to go see it before you'll know much more.