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Sound Near Alternator in Toyota Premio 260 (2013)


RevTalk

Question

Hi everyone,

I own a Toyota Premio 260 (2013), and recently, I noticed a strange sound coming from the alternator area.

Here's what has been done so far:

  1. A mechanic suggested that the alternator bearings were worn out, so I had them replaced. Unfortunately, the sound persisted.
  2. I then replaced the belt adjuster, but the issue still remains unresolved.

Has anyone experienced a similar problem? If so, what was the solution?

Any insights or suggestions would be greatly appreciated!

Thanks in advance!

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On 12/18/2024 at 2:45 PM, RevTalk said:

Hi everyone,

I own a Toyota Premio 260 (2013), and recently, I noticed a strange sound coming from the alternator area.

Here's what has been done so far:

  1. A mechanic suggested that the alternator bearings were worn out, so I had them replaced. Unfortunately, the sound persisted.
  2. I then replaced the belt adjuster, but the issue still remains unresolved.

Has anyone experienced a similar problem? If so, what was the solution?

Any insights or suggestions would be greatly appreciated!

Thanks in advance!

Hiya,

I'm not sure which engine model was planted in your car, but it could be 1NZ-FE, the most common on SL soil.
 

1AZ and 1ZZ-FE also came with Allion but I don't think so as they both classed "Thel wada karanne na" category. Anyhow, the best way to diagnose,

Request the grease monkey to remove the Serpentine Belt, AKA drive belt.

Start the engine, as this will stop providing power to the Water Pump, Alternator, AC Compressor, and any of the tensioners.

See if you still get the same noise. If yes, the issue could be with the timing chain, the surroundings, or something else serious with other moving internal parts.

If the noise stops after removing the Serpentine Belt, then have a cup of coffee, relax, 😁 then diagnose each of the components connected using the Serpentine Belt.

Also, do not run the engine for a longer period without the Serpentine Belt, as it reduces Water circulation because the drive to the Water Pump has been disconnected.
 

As op mentioned, it would be good if you could share audio/ video files with the sound.

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