I get a kind of low-pitched, droning, whistling noise coming from my engine when I drive around. It seems to do it the most if I cruise-control the car at 65mph going down the freeway. Is this normal? Is it something that I could get the dealer to check out? Thanks in advance.

 

whistle? from intake?

sounds normal.

not really speed... more rpm... it happens around 2300-ish

 

if it's stock it's normal... w/ a cai it's normal more pronounced...

basically the whistle is just the air being sucked into the airbox

 

your sales person must suck.

 

I get that sound too sometimes, I always wonder, but its nothing im too concerned about.

 

Turn up your radio.

 

i think it could either be coming from the moonroof or your window. i had to listen for it and it seems to resonate from those areas. wierd.

 

This wierd/annoying sound occurs only on manual tranny as I heard from Toyota engineer at the shop. If it is true, the sound is coming from tranny, not from intake.
Anyone who has a manual tranny has any complaint regarding whistle sound when you raise the speed at the lower gear?

I hear similar sound at 65 as well but it is not a big problem becasue I don't cruse at 65. But seriously I really sick and tired of noisy sound at the lower speed when I raise the speed. I have installed Injen CAI and Concept g exhaust, but still I can hear the noise as much as before...

Toyota engineer said the manual tranny came from Corola, but engine came from Camry.. I guess this is a kind of mismatch...

 

i hear a kind of whistle sometimes when i change gears... it gets kind of loud sometimes... sounds like a smallllllllll b.o.v.. i have no idea what is it... btw my engine is stock..

 

i get this high pitch noise when driving around sometimes/most of the time when i dont have my radio turned up high. i wouldnt call it a whistle because it does seem inconsistent like a whistle, it is a very clean sound. but it isnt very loud and ive heard the same sound from other cars so im not worried...or should i be

 

cmon people

There have been countless threads on this topic.

Here's a few to start:
https://www.scionlife.com/forums/vie...e+sound+intake

https://www.scionlife.com/forums/vie...e+sound+intake

 

That's really weird about the humming at 65 mph. I mean it happens at EXACTLY that speed. Not at 63 or 67. To me, it sounds like my tC is a GIANT tuning fork. I also hear a similar sound at slow speeds, almost like the exhaust manifold heat sheid is vibrating. But I think that's rpm related like Squall said.

But I do hear a whistle from my Injen. I understand that's just how it is. My radio's usually up high enough that it gets drowned out.

 

It's the intake for sure.Mine does the exact same thing.

 

Im sure its fine. But if a little whistle noice worries you, you should drive my tC. haha. mines full of noises.

A solution the whistle noise though would be crank up the stereo or get a loud exhaust