How do I change the alternator on my Honda Accord?

I want to change my alternator myself since it would be a lot cheaper than taking my car to a shop. How do I do that?

If you don’t want to call a mechanic, be sure to consult your owner’s manual before changing the alternator in your Honda Accord.
Here are the steps to replacing your alternator:
  • Disconnect the negative battery cable, then the positive battery cable using a 10mm socket. Push the connectors out of the way, and be sure they don’t touch at any time during this process.
  • Use a 14mm wrench or a serpentine belt removal tool to carefully remove the serpentine belt.
  • Press the clip on the alternator’s electrical plug and pull it off carefully.
  • Pull back the covering on the battery cable and remove the nut using a 10mm wrench.
  • Using needle-nose pliers, push down on the plastic clip on the side of the alternator and push it through the hole.
  • There should be one bolt on top of the alternator and two on the bottom. Remove the bottom two using a 12mm socket, then remove the top bolt in the same way.
  • Lift up the power steering fluid and gently set it aside, then wiggle the alternator out.
  • Now, you can install your new alternator! Put it back in the same position as the old alternator. Attach the battery cable to the post and attach the 10mm nut.
  • Next, re-attach the three bolts. The longest bolt should go on top.
  • Reconnect the electrical plug by pressing it on until it clicks. Then, press the power steering reservoir back into its clip.
  • Using the 14mm wrench, pull the tensioner pulley towards the front of the car and slide the serpentine belt over the idler pulley. Then, release the tensioner.
  • Your new alternator is now ready to connect to the battery cables! Be sure to attach the positive cable first, then the negative cable.
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Liz Jenson
Answered on Nov 12, 2021

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