Car started at idling at red light horrible tapping noise but would stop only do it intermittent then next day shut off while driving towed it home n garage told us it was can shaft sensors we replaced both but car doing same thing starts one time after sitting for long period u hear clicking or tapping noise then shuts offn refuses to restart.......help what could it be???? Please dont reply unless u have experience with this and can tell me exactly what I am looking at being wrong with the car.....I dont have money to replace a bunch of things guessing what it is....I dont have money to tow to garage to get diagnosis n my husband has little to no experience with cars

Cars & Trucks - Subaru - Tribeca - 2006 Subaru B9 Tribeca