Loud vibration noise when the electric A/C compressor is operating
Mazda technical service bulletin 07-005-25 for 2024 Mazda CX-90 Plug-In Hybrid.
- Bulletin number
- 07-005-25
- Component
- Unknown or other
- Summary
- Some vehicles may exhibit a loud vibration noise when the electric A/C compressor is operating. Due to processing variation of the counter-balance bushing (a weight to balance eccentric rotation) installed in the electric compressor, some of the bushing strongly interferes with the shaft, resulting in the humming noise. To eliminate this concern, the machining accuracy of the counter-balance bushing has been improved.
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