The alternator belt on your 2002 Kia Rio may keep coming off due to several reasons, including improper tension, a worn or damaged belt, or a failing alternator or pulley. If the belt is too loose, it can slip off during operation, while a worn belt may not grip properly. Additionally, misaligned pulleys or a defective tensioner can also cause the belt to misbehave. It's crucial to inspect these components and replace any faulty parts to prevent the issue from recurring.
It could be a loose serpentine belt. Or if the alternator is going out either way its most likely a charging problem.
check alternator belt may be slipping.if the belt isworn or glazed replace it if problems is still there replace alternator.
No. The short summary is that there usually is a fuse or circuit breaker in the line coming out of the alternator that protects the alternator from a sudden surge in power from some outside source and which also protects the engine's electrical parts from a sudden surge that might somehow come from the alternator (very doubtful this would happen). But that fuse doesn't keep the alternator charging in the strict sense of the phrase. What stops an alternator from charging is internal parts failure such as the burn out of a rectifier, bearing failure or the belt which drives the alternator failing or coming loose and slipping excessively. Short of failures such as these an alternator will keep on charging as long as the belt is turning its pulley and causing the rotor inside the alternator to turn.
Reasons: Cheap Belt Too tight
First you will want to loosen the alternator. To do this you will need to loosen the bolt holding adjustment bolt in place. This is right under the alternator. After loosening this bolt, you can use the adjusting bolt to loosen the alternator and the belt should slide right off. Then you can put on the new belt and tighten the alternator using the adjusting bolt. After the belt is to the proper tightness, tighten the bolt directly underneath the alternator to keep the belt tight and from becoming loose.
I would suspect one of two things. Either the replacement belt is not the correct size or the belt tensioner is bad. The squealing sounds like a loose belt which would also account for the battery light. possible bad battery causing the alternator to work too hard
alternator light is flashing by telling you that the alternator isn't working proper. the alternator is the one that keep charging the battery. it help keep your car moving longer. if you drive without alternator and it wouldn't keep the engine running for 5 min.
because they are cheap
Replacing an alternator on a 2002 Chevy S-10 or Blazer is some what easy Disconnect battery unplug harness on alternator loosen Serpentine belt if you are careful you can keep the belt on all the Pulleys remove the 2 bolts holding on the alternator and gently use a pry bar to remove alternator use two wrenches to remove positive lead wire place new alternator in position may require light tap with rubber mallet reinstall bolts and both wires and put serpentine belt back on and reconnect battery. Just be careful when disconnecting and reconnecting the battery. To prevent a potentially dangerous short and/or explosion, disconnect negative first, and reconnect it last.
I assume it is V-belt drive, is the top of the alternator sliding in the slotted bracket? (check if you need a washer or two, or stripped threads) but sounds more like a cheap belt that is stretching.
the belt might be to small try getting a smaller one
Detach all wires. Unbolt alternator. Use a visegrip or the correct sized socket or wrench on the tensioner pully. Relieve the tenson on the belt and slip it off of the alternator. If you can, keep the belt on all of the other pulleys as best as possible. It's a pain to get it back on. Remove alternator, then put everything back together with the new alternator.