What are the reasons for the buzzing sound when a Civic starts cold?

1 Answers
IanLee
07/30/25 6:17am
The reasons for the buzzing sound when a Civic starts cold are: 1. Engine wear or improper assembly and adjustment; 2. Worn transmission bearings or gears; 3. Worn or loose wheel bearings or uneven tire wear. Taking the 2021 Civic as an example, it belongs to the compact car category, with body dimensions of: length 4517mm, width 1799mm, height 1434mm, wheelbase 2700mm, fuel tank capacity 47l, and curb weight 1343kg. The 2021 Civic is equipped with a 1.5t turbocharged engine, with a maximum horsepower of 177ps, maximum power of 130kw, maximum torque of 220nm, matched with a continuously variable transmission.
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