'02 Civic SIR / EP3 (Canadian model)
Recording of sound I'm hearing
The sound you're listening for is that high pitched, fluttery whistling sound.
The pitch and volume of the sound are constant, regardless of ambient temperature, engine temperature, RPM, or road speed. The only time you'll hear a slight variation where it pitches up and down is immediately when the throttle is opened or closed (that sort of "weeeooo")
I can only hear it from inside the car when it's under load, which makes it tricky to figure out. Mechanics have suggested it's normal intake or valve train noise, and that's fine, I just find it a bit annoying and want to see if I can get rid of it.
Recent maintenance done:
- oil and filter
- air filter
- changed coolant
- replaced plugs
- replaced service belt (lots of cracking)
- replaced tensioner pulley
Any ideas? How I locate the source this sound if I can only hear it from the interior while under load?
EDIT: car is 100% stock.
Recording of sound I'm hearing
The sound you're listening for is that high pitched, fluttery whistling sound.
The pitch and volume of the sound are constant, regardless of ambient temperature, engine temperature, RPM, or road speed. The only time you'll hear a slight variation where it pitches up and down is immediately when the throttle is opened or closed (that sort of "weeeooo")
I can only hear it from inside the car when it's under load, which makes it tricky to figure out. Mechanics have suggested it's normal intake or valve train noise, and that's fine, I just find it a bit annoying and want to see if I can get rid of it.
Recent maintenance done:
- oil and filter
- air filter
- changed coolant
- replaced plugs
- replaced service belt (lots of cracking)
- replaced tensioner pulley
Any ideas? How I locate the source this sound if I can only hear it from the interior while under load?
EDIT: car is 100% stock.
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