High Pitch Whine
#27
Shifty Bastard.
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Originally Posted by sco
Sounds similar in frequency to a quiet noise I get when the engine is on but not started. Gomez, does the (primary) air pump run even if the engine isn't started?
I don't think it is the air pump after re-reading the first post. He said it happens when the car is warm, the pump only runs for a little while after a cold start. I can't make anything out of the sound files.
If the car runs okay, don't worry about it. This car has so many actuators, valves, solenoids etc, it could be any one of them carrying out it's normal function.
Gomez.
#28
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The "ZZZZZZINNNNGGGGGGGG" constantly going on is surely the air intake. I'm very familiar with it. But the bumpy noise thats much bassier, if that is the problem, i have no clue.( could be just the wav files bad?)
#29
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Originally Posted by Gomez
It really sings if you set the key to IGN for a long period without starting.
#30
Originally Posted by Wildcard
It's not the sound I was thinking of then. Sounds like an air intake whine to me. Does it get louder while you are accelerating? The sound is similar to the noise you get with an aftermarket air intake.
#32
Originally Posted by RXP33D
The "ZZZZZZINNNNGGGGGGGG" constantly going on is surely the air intake. I'm very familiar with it. But the bumpy noise thats much bassier, if that is the problem, i have no clue.( could be just the wav files bad?)
#33
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Yep... that rough idle is normal. You get used to it. If you're talking to the "RX-8 specialist" it would be great if you can get the low down on what changes are in the latest WDS update for the RX-8, or as it we call it here "the latest flash". Bonus points if you can convince him/her to get on the forum and get involved.
#34
Originally Posted by geisha8
Mazda's sending an "RX-8 specialist" to take a look at it this Friday. Will post results (if any) here.
#36
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Hi,
One way to trace mysterious noises is to use the "stethoscope" method (see if you can borrow Taka's
).
Just about any sort of tubing will do, but I use a piece that's about a third the diameter of a hosepipe.
Just apply one end to your ear and move the other end around likely spots. Obviously, "likely spots" will vary depending on what sort of noise you are trying to locate. It's also important to keep your hands - and the end of the tube - away from moving parts such as belts!
Another method I've seen mechanics use (and sometime used myself) for tracking the more rumbly metallic sort of internal noises, is the "screwdriver" method. This involves putting the handle against one ear, and the blade against the block, head, gearbox, or whatever you're trying to get a sound signal from. (Caution: don't let your mates rev the engine, unless you like the feel of a screwdriver handle stuck in your ear..
).
Good luck.
One way to trace mysterious noises is to use the "stethoscope" method (see if you can borrow Taka's
![Wink](https://www.rx8club.com/images/smilies/wink.gif)
Just about any sort of tubing will do, but I use a piece that's about a third the diameter of a hosepipe.
Just apply one end to your ear and move the other end around likely spots. Obviously, "likely spots" will vary depending on what sort of noise you are trying to locate. It's also important to keep your hands - and the end of the tube - away from moving parts such as belts!
![EEK!](https://www.rx8club.com/images/smilies/eek.gif)
Another method I've seen mechanics use (and sometime used myself) for tracking the more rumbly metallic sort of internal noises, is the "screwdriver" method. This involves putting the handle against one ear, and the blade against the block, head, gearbox, or whatever you're trying to get a sound signal from. (Caution: don't let your mates rev the engine, unless you like the feel of a screwdriver handle stuck in your ear..
![Roll Eyes (Sarcastic)](https://www.rx8club.com/images/smilies/rolleyes.gif)
Good luck.
#37
New Member
Originally Posted by BVD
One way to trace mysterious noises is to use the "stethoscope" method (see if you can borrow Taka's ).
![Wink](https://www.rx8club.com/images/smilies/wink.gif)
#38
Registered User
Originally Posted by BVD
One way to trace mysterious noises is to use the "stethoscope" method (see if you can borrow Taka's .
![Wink](https://www.rx8club.com/images/smilies/wink.gif)
#39
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Originally Posted by xxup
I don't think Taka is licenced to work on live people
And a stethoscope is not much use on his usual customers???
![Wink](https://www.rx8club.com/images/smilies/wink.gif)
![Wink](https://www.rx8club.com/images/smilies/wink.gif)
And how impressed would they be if you were a doctor AND could diagnose weird noises in their car! :D
#40
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![Dunno](https://www.rx8club.com/images/smilies/dunno.gif)
#41
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The engine is mounted almost midway to help balance. And rotary make specific sounds that no other vehicle make. I buy them just for the sounds and feel not the power. Have the tech check it out. And yea pops and stuff is normal, this is what people PAY for.
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