An auto mechanic from Gateway Tire and Auto on Cool Springs Blvd in Franklin, TN lied and cheated me. I had AutoZone run my check-engine light before I dropped the car off and was told there was a problem with my transmission. The repair center replaced a $500 fuel injection system without my consent or even calling with the diagnosis. One week later this brand new fuel injection system is broken and they refused to honor their guarantee without charging me another $186 diagnostic fee! The mechanic intentionally did not fix the actual problem, instead he replaced a part which was not broken incorrectly so that I would have to return to their store for more repair. DO NOT GO HERE!