Is this what I disconnect to see if it's the air pump:

https://www.rx8club.com/attachment.p...9&d=1199009977

Sorry, it has been so long since I have posted. I finally got my car back from the dealership with the new air pump and the high pitched sound is gone. Thanks for everbodys help on this matter.

I was drawn to this thread via the SEARCH function. I just wanted to say thanks to everyone for posting their input, it will surely help me diagnose noises I have. There is one noise I cannot figure if it's normal or not. The 6 speed when started makes a noise when clutch petal is released; mostly heard when cold. To be more specific it sounds like a humming, not a grinding.

That's the throw out bearing and seems to be more or less normal. Personally I never heard it until this past weekend when I changed back to Redline MT90. Perhaps another part of the motivation to do a reflush of my transmission oil.

Ja, wait until you need a new clutch and get a new one.

How much did the pump cost? And how much was the labor?

can we DIY the air pump?!

good idea.

All parts and labor were covered under my warranty, I will see if I can get this info and post it. I am not familiar enough with the rotary motor to comment if it is a DIY job.

Thanks guys, and congrats to Boost it for the air pump hook up!