Is it normal for the Tianyi C5 turbo to make noise when engaging?

2 Answers
McAustin
07/24/25 3:04am
Tianyi C5 turbo engagement noise is normal, this is turbo pressure release. Principle: When the cold car starts, it needs to quickly heat up the three-way catalytic converter to reduce pollutant emissions. The engine speed is around 1100 rpm, lasting for about 1 minute. This is a normal phenomenon and a strategy commonly adopted in the industry. Turbo: A turbo is a fan in a car or aircraft engine that uses exhaust gases to blow fuel vapor into the engine to improve engine performance. A turbo is a rotary power machine that converts the energy of flowing working fluid into mechanical work.
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DaniellaAnn
08/10/25 10:42pm
When driving the Tianyi C5, I noticed a slight hissing or whooshing sound when the turbo kicks in, which is actually quite normal. When the turbocharger is working, the increased air flow rate can produce this kind of noise, and it's not a malfunction as long as the sound is minor and there are no abnormal noises. However, if you hear metal grinding sounds, sharp buzzing noises, or a sudden increase in volume, then you should be cautious, as it might indicate a leak in the turbo piping or a sealing issue, and you should promptly visit a 4S shop for inspection. Regular maintenance and cleaning of the intake system are recommended to prevent issues and extend the service life. Avoid aggressive driving in daily use—smooth acceleration can help reduce noise and feels more reliable.
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