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07-10-2022, 09:43 PM
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#1 |
 Drives: . Join Date: Mar 2019
Location: .
Posts: 96
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Engine noise. Water pump?
2011 Yaris USA
When I first start up, there's a noise that sounds like an old school hydraulic pump power steering pump. Since the P/S is electric.... The sound occurs stationary and in motion and changes tone with the engine RPM. It also goes away after the engine warms up. It's also a lot more noticeable in cold weather. The sound does not change if the A/C is on or off. I'm guessing that it's either the water pump or the alternator. I'm not losing any coolant. Should I just leave things alone? |
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