What are the solutions for noise issues in the eighth-generation Camry?
2 Answers
The noise in the eighth-generation Camry is mainly due to tire noise, wind noise, and noticeable engine sound. Below are detailed explanations and solutions: 1. Tire noise: The factors affecting tire noise include the friction characteristics between the tire and the ground, the shape of the tire fender, and the air resistance of the tire, among others. Solution: To reduce tire noise, common methods include installing tire baffles and adding soundproofing cotton to the four tire positions. Some vehicles also use low rolling resistance coefficient silent tires, which help reduce driving resistance, wind noise, and vehicle fuel consumption. To minimize wheel hub noise, the shape of the vehicle's wheel hubs has also been optimized. 2. High wind noise: Wind noise is noticeable at high speeds. Solution: Replace the front door glass with soundproof glass and the front row glass with double-layered glass. 3. Noticeable engine sound: The engine features direct injection and a long stroke. Solution: Adding less engine oil during the first maintenance can significantly improve this issue.
After driving the 8th-generation Camry, I found the noise level to be high. My experience shows that starting with the tires is most effective. Switching to a set of quiet tires like Michelin Primacy 4 can reduce noise by 3-5 decibels, and adjusting the tire pressure to 2.3-2.5bar (not overinflated) helps. I also added soundproofing foam to the wheel arches, which significantly reduced the humming noise on concrete roads. Adding damping soundproof panels to the trunk and floor is particularly useful—I spent 600 RMB on Taobao to do it myself, and remember to choose butyl rubber material. Replacing the original door seals with soundproof ones makes the door closing sound more solid and blocks wind noise. Adding a soundproof cover to the engine compartment works well, but avoid blocking the cooling vents. On the highway, slightly tilting the sunroof open creates a gap that eliminates whistling caused by air pressure differences.
