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You're absolutely right, the high pressure pump is very loud, but towards the middle of the video, a knocking sound can be heard coming from deep within.

Friends, my car is a 2022 11th-generation Civic. I shared the video; please watch it. My car makes a normal noise when it's cold, but when I drive around my garage and stop again, I hear a knocking noise when it's idling. Then, when I drive again and the engine warms up, I hear no more noise...

I definitely use quality fuel. The sound I'm talking about isn't a knock. It's different from an engine noise, more like a sudden, high-pitched bee buzz.

Do you think I didn't go? I didn't get any results. Isn't the purpose of this forum to reach people experiencing similar situations?

Did no one hear?

My engine suddenly makes a wasp-like noise while idling after warming up. You can hear it if you listen carefully. Please hold it up to your ear and listen. In addition to the engine ticking sound, it suddenly makes a high-pitched noise that then stops and repeats.

I'd like to update this thread. The authorized service center reported that the sudden wasp sound heard in the video could be coming from the catalytic converter. It was also said that it might be cleaning the carbon buildup. What are your thoughts on this?

I'd like to update this thread. The authorized service center reported that the sudden wasp sound heard in the video could be coming from the catalytic converter. It was also said that it might be cleaning the carbon buildup. What are your thoughts on this?

I hear a bee buzzing in my engine. It sounds like an electric current.

Thanks everyone. You said my hot and cold engine checks were normal. I'm done worrying.

You're right, what do you think about the measurement I made on a warm engine? Is it normal?

I was wondering about your comment while it was hot, please tell me

This is the hot engine measurement

This is cold engine measurement

I took both measurements when the engine was hot and cold, as you stated. I added the measurements. Do you think both are normal?

This isn't an engine coolant measurement. What you mentioned applies to the water measurement. The situation is the opposite with engine oil. In a cold engine, the oil level is completely at the bottom, so the dipstick shows a high level.

Do you think I have reason to worry? Everything seems to be as it should be.

This is the result of checking when the engine was cold. In the other image I shared before, the level was slightly lower when the engine was hot.

I agree, reading really sucks

It is the result of me thoroughly cleaning and checking the stick.