Bearing failure in stock AC compressor, grinding noise and sparks when AC was turned on, no problem when off.
Bought a rebuilt compressor, put it on in about one hour, extremely easy to do if mechanically inclined.
See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how
frequently Ford Explorer Sport (2-door) problems occur, check out our car reliability stats.