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Mechanical sound

Daniel Rodriguez
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Daniel Rodriguez Member

Daniel Rodriguez

Posted
Posted

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

DBJoe996 Member

DBJoe996

Posted
Posted

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.

rockhouse66 Member

rockhouse66

Posted
Posted

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.

Daniel Rodriguez Member

Daniel Rodriguez

Posted
  • Author
Posted

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

Daniel Rodriguez Member

Daniel Rodriguez

Posted
  • Author
Posted
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

Daniel Rodriguez Member

Daniel Rodriguez

Posted
  • Author
Posted
2 minutes ago, Daniel Rodriguez said:

Good morning

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

Additionally.. the vaccum cleaner explanation makes more sense.. hmm..

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