What Causes the Buzzing Noise During Cold Start of a Civic?
1 Answers
The reasons for the buzzing noise during cold start of a Civic are: 1. Low oil pressure or wear in the hydraulic lifters causing air to enter them; 2. Wear in the valve rocker arms leading to excessive valve clearance; 3. Oil sludge or carbon deposits in the throttle body; 4. Expansion of the catalytic converter when heated, producing noise; 5. Wear, elongation, or loosening of the timing belt or chain; 6. Failure of the chain tensioner to maintain proper tension. The dimensions of the Civic are: length 4535mm, width 1755mm, height 1450mm, with a wheelbase of 2670mm. It is equipped with two 1.5T turbocharged engines, delivering a maximum power of 177kW, paired with either a 6-speed manual or CVT transmission.