new noise - Toyota Yaris Forums

yaris9876 · 12-11-2009, 08:33 PM

07 Yaris hatch..
This has always run perfect and quiet... almost silent at idle..
We just had 5 days of 15-25 below 0 at night... I started it a couple times only for a half hour or so the whole time... I went on a road trip today and have a new noise... When its idle and you rev it a little
it kind of winds down like on a slight delay after you let go of the pedal. Like a kind of whine following the engine sound...it makes the sound reving up and down..
it sounds like some cheap cars sound all the time....its not a scream
or grind..just a following delay sound with a plastic overtone...
I checked and nothing is rubbing..
I dont like this new development...I am used to perfection from the
Yaris....
What do you think...???mechanics...??

WeeYari · 12-11-2009, 08:39 PM

Read that a couple of times, and I still get kinda lost in it. I'm guessing maybe it's the serpentine belt. They can tend to make some noise as they get older, and especially in the deep cold.

YAR1S · 12-11-2009, 09:03 PM

I feel your pain.... with the cold weather here, my yaris makes a rattle noise when you rev it.....sooo annoying.

IllusionX · 12-11-2009, 10:31 PM

hey... it happened to mine last year... it turns out to be the water pump getting seized up. It would only do it when cold at first... and then as the weather got colder.. it did it more and more...

finally replaced the water pump

Lafiro · 12-12-2009, 04:25 PM

Really, mine does this wierd noise now that its below freezing, if I leve it in drive or reverse and just tap the gas just a bit, even with no brakes applied, it makes a wierd sound like something is really wrong.

Is this covered by warranty? Or how much is it to buy it, and how much work goes into changing it out?

1NZYaris1 · 12-12-2009, 04:44 PM

redo your anti freeze to 75 % concentrate instead of the standard 50%

yaris9876 · 12-12-2009, 05:16 PM

thanks dudes, I will swap out the fluid to start with... I have 170K on it so...

12-11-2009, 08:33 PM	#1
yaris9876 Drives: yaris hatch 07 640K original m Join Date: Mar 2007 Location: usa Posts: 285	new noise 07 Yaris hatch.. This has always run perfect and quiet... almost silent at idle.. We just had 5 days of 15-25 below 0 at night... I started it a couple times only for a half hour or so the whole time... I went on a road trip today and have a new noise... When its idle and you rev it a little it kind of winds down like on a slight delay after you let go of the pedal. Like a kind of whine following the engine sound...it makes the sound reving up and down.. it sounds like some cheap cars sound all the time....its not a scream or grind..just a following delay sound with a plastic overtone... I checked and nothing is rubbing.. I dont like this new development...I am used to perfection from the Yaris.... What do you think...???mechanics...?? Last edited by yaris9876; 12-11-2009 at 08:36 PM. Reason: save

12-11-2009, 08:39 PM	#2
WeeYari View User's Garage Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008 Location: Georgetown, Ontario, Canada Posts: 5,740	Read that a couple of times, and I still get kinda lost in it. I'm guessing maybe it's the serpentine belt. They can tend to make some noise as they get older, and especially in the deep cold. __________________

12-12-2009, 04:44 PM	#6
1NZYaris1 View User's Garage Drives: Yaris Join Date: Oct 2008 Location: New Zealand Posts: 2,566	redo your anti freeze to 75 % concentrate instead of the standard 50% __________________ http://www.microimageonline.com/forums/index.php

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12-11-2009, 10:31 PM	#4
IllusionX It's the illusion you see View User's Garage Drives: 07 Yaris Sedan Aero Join Date: Oct 2006 Location: Brossard, QC Posts: 3,888	hey... it happened to mine last year... it turns out to be the water pump getting seized up. It would only do it when cold at first... and then as the weather got colder.. it did it more and more... finally replaced the water pump

12-12-2009, 04:25 PM	#5
Lafiro Drives: 06 Yaris Sedan Join Date: Jun 2006 Location: NYC Posts: 694	Really, mine does this wierd noise now that its below freezing, if I leve it in drive or reverse and just tap the gas just a bit, even with no brakes applied, it makes a wierd sound like something is really wrong. Is this covered by warranty? Or how much is it to buy it, and how much work goes into changing it out?

12-12-2009, 05:16 PM	#7
yaris9876 Drives: yaris hatch 07 640K original m Join Date: Mar 2007 Location: usa Posts: 285	thanks dudes, I will swap out the fluid to start with... I have 170K on it so...