The standard alternator on the Kia Rio is rated at 80 amps. The least expensive alternators are rebuilt. The majority of the time, the only thing that fails in an alternator is the diode trio. The diodes convert alternating current into direct current by preventing electrical current from flowing in more than one direction. They are like a one-way valve. A rebuilt alternator has new diodes, bearings and brushes, which makes it as good as new.
Remove the air duct from the air cleaner to the throttle body by using a screwdriver to loosen the clamps and pulling the hose off. Loosen the power steering belt by using a socket to turn the tensioner bolt to relieve the tension on the belt. Remove the belt. Remove the power steering pump and bracket using a socket.
Disconnect the negative battery terminal using a wrench. Loosen the two bolts securing the alternator to the block, but do not remove them yet. Loosen the tension on the alternator belt by using a socket and turning the tensioner bolt. Lift the belt off.
Remove the alternator's top bolt, and swing the alternator out toward the fender. Remove the electrical connectors on the back of the alternator. Use a wrench to remove the heavy battery wire and just pull the plastic field plug out of its socket. Remove the remaining bolts in the alternator. Remove the alternator and tensioner.
Bolt up the alternator and tensioner, which share the same bracket. Install the bolts loosely. Install the electrical battery wire and field plug on the back of the alternator. Use a wrench to tighten the battery wire nut.
Tighten the two bolts in the alternator and the bolt in the tensioner using a socket. Install the alternator belt and turn the tensioner bolt with a socket until sufficient tension is applied to the belt.
Install the power steering pump and bracket and tighten the bolts with a socket. Install the power steering belt and rotate the tensioner bolt with a socket until sufficient tension is applied. Install the air duct from the air cleaner to the throttle body and tighten the clamps with the screwdriver. Connect the negative battery terminal and tighten with a wrench.
