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Old 08-18-2017, 03:09 AM   #1
ThinkPad
 
Drives: Yaris XP9 1.3 '06
Join Date: May 2016
Location: -
Posts: 33
What is this rattling noise when flooring the gas pedal?

When driving around 70kmh/43mph (2000-2200rpm) in 5th gear and then flooring the gas pedal gives a rattle. I can easily recreate it in the 5th gear, but in 4th gear with rpm around 2000-2200 rpm also works.
I have made a video of it: https://youtu.be/Ga3pMcmMQEw (best to listen with headphones to hear it good). The sound is coming from the front/engine bay of the car.

It happens at:
0:04
0:14
0:23

Does anyone know what this is?

Edit: Took it to the Toyota dealer, a mechanic had a drive with it. Conclusion is that it isn't anything critical. He thought it was something with the exhaust. He lifted the car and checked some things. He said it wasn't the timing chain. He thought it was something with building up pressure. As it only happens with low rpm in high gear i am reassured :)

Still interested in your answers though, as i haven't heared this on any other car i have driven, when driving low rpm in high gear. Usually the car justs begins to vibrate/hum a bit, but not rattle like this.

Last edited by ThinkPad; 09-14-2021 at 06:42 AM.
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