Look under the hood, but make sure the engine has cooled off before you touch anything.

• Any mismatched bolts or offset paint may mean a front end accident.

   

• A sprayed black film on the underside of the hood usually means oil leaks or oil pressure.

   

• Examine the engine belts for wear. These are thin, black ovals of rubber that are attached to certain parts of the engine. After long use they start to show white, frayed strands on their edges.