88 RX7 Turbo II, 10th anniversary edition.....Any help would be appreciated...I have an intermittent, high pitched whine coming from the area where the intercooler intake is. It doesn't seem to be effectinig power, but the whine comes and goes at will (more often now than last week etc...). Usually more when warm. Any ideas???is there an air pump that might have a bad bearing> could it be vaccuum related...???

 

At idle/under boost/decel?

Lil more description?
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when a turbo goes bad it'll whine and sound like a siren under boost.

 

The whine starts about 5 minutes after cold start. (at warm up). It is prett well constant, during idle, while decelerating. cruising, and I believe under boost too, but it's hard to hear it under boost because of the noise of the vehicle, exhaust and turbo whistle. Then, out of the blue, it stops whining. I can't assosiate any activity with the time it stops, nor when it returns randomly some time after that....

 

The whine starts about 5 minutes after cold start. (at warm up). It is prett well constant, during idle, while decelerating. cruising, and I believe under boost too, but it's hard to hear it under boost because of the noise of the vehicle, exhaust and turbo whistle. Then, out of the blue, it stops whining. I can't assosiate any activity with the time it stops, nor when it returns randomly some time after that....

 

join the club. mine whines all the time. but not at idle only when im just leting off the accelerator or getting on it at low boost.

 

Could be a belt.

 

Is there a specific belt you refer to.??? I am downloading tohe Manual (re Turbo control System) but the diagrams are sketchy at best...

 

It's probably just a belt. If you replace one you should replace them all.

 

But the whine is definitely coming from inside the intercooler housing.....