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How to Replace Alternator on 2000-2010 Toyota Corolla

If your Toyota Corolla flashes you with that annoying battery sign in the dashboard, it means that your alternator is not working properly and the battery is not charging.
Toyota Corolla Alternator 1 photo
Photo: screenshot from Youtube
The easiest solution is to get the car to a dealership and get it solved without dripping a single sweat tear. But if you like to live on hardcore mode, you can do it in your own garage. It’s just unscrewing some bolts and replacing a big round metal part, not building a rocket...

So get your new OEM preferably alternator, your toolbox and start working. The alternator is the big round vented part on the left of the engine and it is driven by the serpentine belt, which you will have to remove, so we’ll start with that:
  • Disconnect the battery first
  • Locate and loosen the bolt that holds the tensioner according to the video bellow. You might want to use a ratchet and an extension to gain more leverage as the space is pretty tight and you can’t stick your hand there
  • Next you take an 19mm wrench and place it around the other bolt near the one you’ve just loosen. This will give you the possibility to create a lever and by pulling towards the front, you can loosen the belt in order to dismount it from the alternator pulley
  • Do the belt dismantling
  • Remove the wires connected to the alternator by pushing the clips on the socket and pulling up. Also remove the other cable that is held on with a nut
  • Unscrew the two bolts that keep the alternator fixed on the engine block
  • Stare for a few seconds at the rust free Toyota quality bolts
  • Remove the alternator
  • Put the new alternator in position and connect everything back in the reverse order
  • Forgive the guy that made the video tutorial for his English
  • Start car, drive away.

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