i think that ur thinking of the v6??? on the i4 it would be near impossible to get to any of the belt tensioner bolts from under the car on the i4. i forgot where the alternator was located before its behind the engine right? if so then both the bolts are ontop of it. one of the bolts adjusts the tension and then the othe locks the tensioner in place so it cant move. if ur going to do both the belts then ull need to mess with 4 bolts. i think u might have to anyway because the alternator belt is located behind the p/s pump.RbluEMx6 said:There are two bolts. And one is right above the alternator( im guessing its an adjustor bolt) and the other is underneath. Your going to need to jack up your car to get it. Take out the tire and the well side cover> itll make it easier to work with.