How to replace the drive (serpentine) belt?

2005 TOYOTA SIENNA
127,000 MILES • 3.3L • V6 • 4WD • AUTOMATIC
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IMAGING
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I need to replace my drive belt and need some assistance or videos. Also, all the necessary tools for the job.
Thank you.
Oct 20, 2021 at 12:06 PM
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ASEMASTER6371
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Good afternoon,

I attached the procedures for you for the replacements of the belts.

https://www.2carpros.com/articles/replace-serpentine-belt

Let me know if you have any other questions.

Roy
Oct 20, 2021 at 12:34 PM
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IMAGING
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How can you determine if the drive belt needs replacing by looking at it and hearing it?
Are there two drive belts?
Oct 21, 2021 at 11:32 AM
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ASEMASTER6371
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Yes, there are two.

Look for cracks on the belt and wear marks. Your car is almost twenty years old. The belts should be changed at 50,000 services.

If they are noisy, replace them.

Roy
Oct 21, 2021 at 1:10 PM
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IMAGING
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This is a video showcasing the engine sound.
Oct 21, 2021 at 3:46 PM
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ASEMASTER6371
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Did you remove the belts as I suggested to see if the noise is still there?

Roy
Oct 22, 2021 at 12:19 PM
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IMAGING
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no I didn't. So you can't tell by the video.
Oct 22, 2021 at 5:11 PM
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IMAGING
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Maybe I should just change them since the vehicle has 127,000+ miles already.
Oct 22, 2021 at 5:12 PM
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IMAGING
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where is the other drive belt located?
Oct 22, 2021 at 5:14 PM
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KASEKENNY
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Just to jump in, here is a guide that will help with determining if the belt needs to be replaced:

https://www.2carpros.com/articles/how-a-serpentine-belt-works

Plus, here is a video that shows how to check the belt as well:

https://youtu.be/ef3N25wI8uE

Lastly you have a drive belt on the alternator and A/C compressor. Then I show you have a second belt for the power steering.

Take a look below for this info that shows how to remove each belt. There is an adjuster on the alternator and a second on next to the power steering pump.

Please let us know what other questions you have. Thanks
Oct 24, 2021 at 6:38 PM
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IMAGING
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Here's a picture of the drive(serpentine) belt.
Oct 25, 2021 at 10:25 AM
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KASEKENNY
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That does not look terrible, but you need to inspect the ribbed side for any cracking or splitting.

Take a look at the picture below. The best way to find out is to remove the belt and then bend it to see if the grooved side of the belt is split.
Oct 25, 2021 at 1:00 PM
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IMAGING
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Now, if I decide to replace the belt, what are the torque wrench settings for the 3 bolts.
Oct 25, 2021 at 5:59 PM
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ASEMASTER6371
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In my original response, the diagrams have the torque specs for the bolts. It was 32 pounds.

Roy
Oct 26, 2021 at 2:57 AM
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IMAGING
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okay, thanks.
Oct 27, 2021 at 11:37 AM
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ASEMASTER6371
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You are welcome.

Always glad to help.

Roy
Oct 27, 2021 at 1:30 PM
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IMAGING
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In the above video I sent, is the drive (serpentine) belt next to the alternator?
Nov 5, 2021 at 7:30 PM
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IMAGING
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All 3 bolts are 32 lbs.?
Nov 5, 2021 at 7:42 PM
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KASEKENNY
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Yes. This belt is the drive belt. Take a look at the info below. However, which three bolts are you referring too?

I attached the alternator view and torque specs below so let me know if you are talking about different bolts then shown. Thanks
Nov 6, 2021 at 8:38 AM