high pitch whine at 100km/h - Toyota Yaris Forums

Moore · 06-10-2007, 04:16 PM

I started getting this last night. When I get to, or very close to 100km/h there is a high pitch whine coming from the engine, or somewhere in the front end. As soon as I lay off the gas it stops, but starts again when I hit the gas. Has anyone else experienced this. Does anyone know what this could be?? I have just over 1000km's on the car if this helps.

Kaotic Lazagna · 06-10-2007, 04:58 PM

i've never experienced this.

BailOut · 06-10-2007, 05:17 PM

Is it only at 100km/h, or does it start there and sustain above that speed?

Can you determine if it is from the engine, transmission or steering/suspension/wheels?

Is it a mechanical whine, or an air movement whine?

Moore · 06-10-2007, 11:59 PM

It is not from the air movement, it is defitnetly mechanical. It is not ear shattering, but it is there. It sounds like it is coming from the front of the vehicle. I am assuming the engine because the second I lift my foot off of the gas it goes away, and comes back just as quick when I hit the gas again. Starts there and sustains it(from 100km/h).

drifto · 06-11-2007, 03:11 AM

do you have a power adapter plugged in? sometimes you get a whine in the speakers from the motor during high rpm.

eTiMaGo · 06-11-2007, 04:05 AM

yes, I'm thinking electrical interference causing the whine in the speakers, very common thing to happen...

Yaris Revenge · 06-11-2007, 09:59 AM

Ion flux capacitors. They always kick in just before the thermal couplings engage, which reduces the quantum-level stress on your frame. Nothing to worry about!

~YR

kurokoma-kun · 06-11-2007, 11:03 AM

Quote:

Originally Posted by Yaris Revenge

Ion flux capacitors. They always kick in just before the thermal couplings engage, which reduces the quantum-level stress on your frame. Nothing to worry about!

or a phaser on overload, have you checked all the ventilation ducts?

Seriously though, could it be a belt slipping? Or does that only happen at low speed?

drifto · 06-11-2007, 12:36 PM

Quote:

Originally Posted by kurokoma-kun

or a phaser on overload, have you checked all the ventilation ducts?

Seriously though, could it be a belt slipping? Or does that only happen at low speed?

lol most likely not a belt, usually only hear belts during start-up or during parking(but we dont have hydraulic steering anyways

).

Rizzo · 06-11-2007, 08:22 PM

When I was trying to destroy my engine by driving in third instead of drive (um, not on purpose *cringe*), it would get noisy at 100km/h. No high pitched whining, though. You're sure you're in the right gear?

06-10-2007, 04:16 PM	#1
Moore Drives: 2007 yaris 3dr ce Join Date: Jun 2007 Location: canada Posts: 15	high pitch whine at 100km/h I started getting this last night. When I get to, or very close to 100km/h there is a high pitch whine coming from the engine, or somewhere in the front end. As soon as I lay off the gas it stops, but starts again when I hit the gas. Has anyone else experienced this. Does anyone know what this could be?? I have just over 1000km's on the car if this helps.

06-10-2007, 05:17 PM	#3
BailOut Steals terrorist's lunch View User's Garage Drives: 2007 Yaris Liftback Join Date: Mar 2007 Location: Reno, Nevada, USA Posts: 1,299	Is it only at 100km/h, or does it start there and sustain above that speed? Can you determine if it is from the engine, transmission or steering/suspension/wheels? Is it a mechanical whine, or an air movement whine? __________________ - Brian Share the Road I often carry 2 carpool passengers and mountain bikes or snowboards/skis over a 4,500 foot elevation difference. Click the graphic above to see my detailed mileage logs.

06-11-2007, 03:11 AM	#5
drifto View User's Garage Drives: 07 5spd Yaris LB Join Date: Apr 2007 Location: NY/NJ Posts: 251	do you have a power adapter plugged in? sometimes you get a whine in the speakers from the motor during high rpm. __________________ Going from drift to grip... 07 Yaris LB 5spd AE86 Corolla GTS 5spd http://microimage.ning.com/ http://www.microimageonline.com/store.html

06-11-2007, 04:05 AM	#6
eTiMaGo vroom vroom View User's Garage Drives: lil red 5-door Join Date: Sep 2006 Location: Bangkok, Thailand Posts: 7,744	yes, I'm thinking electrical interference causing the whine in the speakers, very common thing to happen... __________________ The price of freedom of religion, or of speech, or of the press, is that we must put up with a good deal of rubbish. - Robert Jackson Bye bye 1NZ...

06-11-2007, 09:59 AM	#7
Yaris Revenge GIGA...DRILL...BREAKER!!! Drives: Lagann. ;P Join Date: Feb 2006 Location: My own little world. Posts: 717	Ion flux capacitors. They always kick in just before the thermal couplings engage, which reduces the quantum-level stress on your frame. Nothing to worry about! ~YR __________________ Be polite. Be professional. But have a plan to kill everyone you meet.

06-10-2007, 04:58 PM	#2
Kaotic Lazagna View User's Garage Drives: '14 GT86, '08 Vitz Join Date: Dec 2006 Location: Central Valley, CA Posts: 9,873	i've never experienced this.

06-10-2007, 11:59 PM	#4
Moore Drives: 2007 yaris 3dr ce Join Date: Jun 2007 Location: canada Posts: 15	It is not from the air movement, it is defitnetly mechanical. It is not ear shattering, but it is there. It sounds like it is coming from the front of the vehicle. I am assuming the engine because the second I lift my foot off of the gas it goes away, and comes back just as quick when I hit the gas again. Starts there and sustains it(from 100km/h).

06-11-2007, 08:22 PM	#10
Rizzo View User's Garage Drives: 2007 5-Door Hatchback Join Date: May 2007 Location: British Columbia Posts: 40	When I was trying to destroy my engine by driving in third instead of drive (um, not on purpose cringe), it would get noisy at 100km/h. No high pitched whining, though. You're sure you're in the right gear?

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