Yaris L4-1.5L (1NZ-FE) (2007)
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1.
Verify that the noise is coming from the generator V-belt.
Replace the generator V-belt if there is any sign of fraying, scoring, or glazing on the belt.
2.
Remove and replace the generator V-belt. Updated generator V-belt specification:
Refer to the Technical Information System (TIS), 2007 model year Yaris Repair Manual:
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Engine/Hybrid System - Engine Mechanical - "1NZ-FE Engine Mechanical: Drive Belt: Removal"
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Engine/Hybrid System - Engine Mechanical - "1NZ-FE Engine Mechanical: Drive Belt: Installation"
