Why is the engine noise loud in Haval H6?
3 Answers
Haval H6 engine noise is loud due to the use of low-quality engine oil, cold starts, or low temperatures causing increased engine noise. Haval H6 uses low-quality engine oil: Most new cars are initially filled with fully synthetic engine oil, which contains grinding agents and has low viscosity and high quality. After the first maintenance, if lower-quality engine oil is used, the higher viscosity can cause additional friction during high-speed engine operation, leading to increased engine noise. Haval H6 cold starts or low temperatures cause increased engine noise: After the vehicle has been parked for a long time, the lubricating oil mostly flows back into the oil pan. A cold start may not immediately establish an oil film, leading to dry friction combined with high idle speed during cold starts, which increases engine noise during this period. Similarly, low temperatures can cause insufficient engine coolant temperature, resulting in higher idle speeds. If the engine rubber components harden and lose elasticity, slipping may occur during operation, further increasing engine noise.
I've been driving a Haval H6 for three years, and loud engine noise is a frequent issue. Most of the time, it's caused by a loose or worn-out belt tensioner, resulting in squeaking sounds. Replacing the belt or adjusting the tensioner usually solves the problem. Engine oil is another critical factor. Insufficient or dirty oil increases engine friction, making the sound rougher, so regular oil changes are essential. Exhaust pipe leaks are another common cause, amplifying the exhaust noise and allowing exhaust fumes to be smelled under the car—this requires immediate repair. Additionally, damaged engine mounts can increase vibration noise, especially noticeable during acceleration. Ignoring minor issues may lead to engine overheating, saving on repairs now but costing more later. I recommend a comprehensive inspection, focusing on the belt and engine oil condition.
I just got my Haval H6 a few months ago, and the engine roars loudly as soon as I start it. As a newbie, it's easy to panic. It might be a simple issue: low or old engine oil, and topping it up could quiet things down; or the fan system is noisy, causing unusual sounds due to insufficient cooling. Worn belts are also a culprit, squeaking during operation. Don't overlook these in daily use—first, check the oil dipstick yourself, and if there's no issue, then head to the garage. Ignoring it could lead to increased fuel consumption and bigger safety risks.
