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01-08-2021, 06:31 AM | #1 |
Drives: Yaris XP9 1.3 '06 Join Date: May 2016
Location: -
Posts: 33
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Cold start noise: worn out alternator bearings? 2006 2SZ-FE
New year, new noises/defects.
https://youtu.be/t8LSnVCurLw Cold starting the engine on a winter morning (2℃ / 35℉) produced this noise. I suspect this might be the bearings of the alternator? After the engine was warmed up a bit i didn't hear it anymore. I have driven around 40 mins on the highway and thus the engine was warmed up nicely. It ran smooth without any weird noises. |
01-08-2021, 07:17 AM | #2 |
Drives: 2010 yaris 3 door hatch Join Date: Jun 2013
Location: Sheboygan Falls, Wi.
Posts: 506
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Some engines are noisy when they are very cold, you can remove the belt and try it out. Then listen to see if the noise is gone.
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01-08-2021, 08:23 AM | #3 |
Drives: 2007 Join Date: Feb 2014
Location: motown
Posts: 339
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Belt slipping
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01-08-2021, 11:24 AM | #4 |
Drives: Yaris XP9 1.3 '06 Join Date: May 2016
Location: -
Posts: 33
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Sounds plausible, as the belt was squealing a little bit a few weeks ago when the A/C compressor got engaged.
I will loosen the tension on the belt so i can rotate the pulleys etc. by hand to check them. And if those seem ok i will tighten the belt again. |
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