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Good evening,

 

Would like to have your feedback.

While running the car yesterday, I Turned the heater "ON" and I heard a loud mechanical sound from the back of the car not sure if this is normal on not. The sound was like when a plane is lowering or moving the flaps on its wings. Not a click sound but a long 5 sec. whining sound.

Is this normal? Not sure if really related to heater, but that is when it started.

 

Thank you,

 

Daniel

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Could be your Secondary Air Injection pump whining, particularly just after first start of the car. Mine runs several times after a cold start.  The SAI in normal running mode sounds like a muffled vacuum cleaner in the engine bay.

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Good morning

On 11/3/2022 at 8:55 AM, DBJoe996 said:

Could be your Secondary Air Injection pump whining, particularly just after first start of the car. Mine runs several times after a cold start.  The SAI in normal running mode sounds like a muffled vacuum cleaner in the engine bay.

Good morning,  DBJoe996. Thank you for feedback. I will read about this Air pump as I had no idea there was one..

Thank you

Rbdaniel33

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1 hour ago, rockhouse66 said:

Agree - could be SAI pump.  Mine got quite noisy and I found some info online about how to take it apart and relube at least the outer bearing.  Helped a lot.

Hello rockhouse66

Thank you much. Will check on YouTube.. prob something I could try over the weekend..

Rbdaniel33

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