My Yaris Is Squealing and It Is Not The Belt - Toyota Yaris Forums

rayfloyd170 · 02-08-2021, 01:32 AM

Make sure you got the right belt tension... I experienced changing to a new belt and the same sound, in my case it was never the belt at all. When it is loose it will squeal, also when it is overtightened... You should be in the right tension. Other than that if there is still squealing then maybe there could be some other issues (alternator bearing, AC compressor, waterpump) . You can also test this by removing the belt and running the engine for a "short period" just to determine if it is really coming from these components.

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02-08-2021, 01:32 AM	#2
rayfloyd170 Drives: Yaris 2016 1.3 Manual Join Date: Jun 2017 Location: SAUDI ARABIA Posts: 132	Make sure you got the right belt tension... I experienced changing to a new belt and the same sound, in my case it was never the belt at all. When it is loose it will squeal, also when it is overtightened... You should be in the right tension. Other than that if there is still squealing then maybe there could be some other issues (alternator bearing, AC compressor, waterpump) . You can also test this by removing the belt and running the engine for a "short period" just to determine if it is really coming from these components.