What is the reason for the humming sound when accelerating in Haval H6?
5 Answers
Acceleration with resonance noise is basically caused by low-speed engine resonance. Low-speed vibration frequency is low, and when it is close to or the same as the natural frequency of certain components, resonance occurs. The following is a relevant introduction to the Haval H6: 1. Model Highlights: The Haval H6 is positioned as an urban SUV, with two drive modes: two-wheel drive and four-wheel drive. The H6 is built on a new platform different from the previous H3 and H5, with the main feature being the use of a monocoque body. The four-wheel-drive version of the H6 employs an on-demand four-wheel-drive system, unlike the body-on-frame + part-time four-wheel-drive system used in the H3 and H5. While this may affect its off-road performance to some extent, the benefits include reduced body weight for improved fuel efficiency and better ride comfort. 2. Powertrain: Equipped with a 1.5GDITEVO engine, the maximum torque output range is expanded to 1400-3600 rpm, paired with a second-generation 7DCT transmission, achieving a comprehensive transmission efficiency of up to 95.6%.
I've been driving a Haval H6 for over a decade, and the humming noise during acceleration is quite common, mostly due to engine issues—things like loose belts or bearing wear often cause trouble. My car had this noise before, and after inspection, it turned out to be the aging alternator belt, which created friction noise at high speeds; if left unfixed, it could lead to bigger failures. Exhaust system leaks are also suspects, such as gaps in the exhaust pipe joints where airflow impacts and causes a humming sound. I recommend stopping the car and opening the engine bay to listen for the source; during regular maintenance, have the mechanic tighten components or replace old belts to prevent abnormal noises. Also, if it's a turbocharged model, the lag noise can be amplified—don’t overlook these small details, safety comes first.
I just bought a Haval H6 a few months ago, and when accelerating, I hear a low humming sound, which makes me quite anxious. I asked a mechanic, and he said it might be a transmission system issue, where automatic transmissions have significant resonance during low-gear shifts, especially noticeable when climbing hills or accelerating sharply. I did some research myself and feel it might be a bad wheel bearing, making noise when rolling. Another possible issue is aging intake pipes with air leaks, causing constant humming when wind blows through. It's best to record the sound characteristics: if it changes with the throttle, it indicates a mechanical problem. Don’t delay; go to a professional shop for diagnosis as soon as possible. Since it’s a new car, repairs under warranty are easier. Pay attention to the frequency of unusual noises during daily driving—safety comes first.
Check the humming sound in the Haval H6, which I believe mostly comes from the engine or transmission components. For example, worn pulley bearings can cause vibration noises at high speeds, or insufficient lubrication in bearings can lead to friction sounds. If the noise only occurs at specific RPMs, try revving the engine while stationary to locate the source; you can also try tightening the engine guard screws yourself. Additionally, a clogged air filter restricting airflow can also cause unusual noises—replacing it with a new one might solve the issue. Overall, don’t overcomplicate the problem; simple self-checks before sending it for repair can save time.
The buzzing noise that pops up during acceleration is really annoying and could potentially hide risks. A common issue in the Haval H6 is exhaust leaks or bearing damage, where the sounds of airflow and metal friction can be easily confused. If there's a leak, the high-temperature gas spraying out poses a significant danger; if the bearing is damaged, it affects steering safety. I've encountered a similar situation where the drive shaft fasteners were loose. It's recommended to stop the car immediately to locate the source of the noise and avoid long-distance driving. Consult a professional shop to scan with a diagnostic tool, and regular maintenance of bearings and exhaust pipes can prevent problems. Safety is not something to be careless about.
