My car has been at the dealership for 3 days now an now they are sayin its my alternator but i replaced my alternator last year an this will be the fourth battery i have gone through in 3 years. BUt the reason i took it in was when im driving the car acts like its spiting on the right hand side an it jerks like every 20 sec. but i got the belt and the tension pulley changed an no change an the next day its still doing the same thing but the battery lite came on an then the car in up dying, but took it to the dealer an they never even drove the car nor started it up after the put the battery in an the alternator on an the problems i had before is still there, so i paid 1000.00 with in a week an the problem is not solved..