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Old 05-30-2020, 04:14 PM   #1
imhere
 
Drives: Vitz
Join Date: May 2020
Location: P
Posts: 2
What is tuktuk noise? Prominent when car's cold

Around 0:22 I rev up the Vitz/Yaris engine, the sound also follows engine revving up.

Then I let it idle and it's prominent again at 0:35.

Please listen: https://streamable.com/z54arx

It's more audible when the car's cold. As you rev up at idle, sound frequency also increases.

The sound either disappears or the intensity reduces a lot when the car's driven and is warm enough. Becomes a bit difficult to hear then.

What could be it?

I've driven around 1500-2000 KM after it started coming up... been okay, haven't noticed issues in drive/power.
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Old 05-30-2020, 04:54 PM   #2
ex-x-fire
 
Drives: 2010 yaris 3 door hatch
Join Date: Jun 2013
Location: Sheboygan Falls, Wi.
Posts: 504
Is that a diesel?
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Old 05-30-2020, 04:55 PM   #3
imhere
 
Drives: Vitz
Join Date: May 2020
Location: P
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Quote:
Originally Posted by ex-x-fire View Post
Is that a diesel?
No - petrol. 1 Liter. The 1krfe is noisy..

But this ticking noise is something new, started coming around 2k KM back. When car's cold and idle, follows RPM, disappears or can barely be heard once you drive it and car's warm enough.
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Old 05-31-2020, 07:31 AM   #4
nortonfb
 
Drives: 2007
Join Date: Feb 2014
Location: motown
Posts: 339
The appears to remain constant when you rev the motor.
Heat shield?
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Old 06-01-2020, 07:32 PM   #5
BIGTAZ351
147K-Blue / 24K-Yellow
 
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Drives: 2010 Ylw 3dr. AT(Blue-Wife's)
Join Date: Mar 2011
Location: North Branch, MN
Posts: 77
That sounds like a piston broken skirt or connecting rod...top/bottom I don't know. But start looking for new motor...
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All Weather Package, Power Package, Cruise, WeatherTech Floor Mats. Altimax Arctic Winter Tires.

Repair List:
1 new blower motor, making funny noise. @ 91K (Water pump @ 120K)
Mod List:
1. Black tape on most of the annoying blue high beam light behind the lens. (thank you CTScott)
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