What causes the abnormal noise when braking in Wuling Hongguang?
2 Answers
Abnormal noise when braking in Wuling Hongguang may be caused by foreign objects between the brake pads and brake discs, worn brake pads, or aging rubber bushings of chassis components. To avoid affecting usage, it is recommended to contact a 4S store for maintenance and inspection. The judgment methods are as follows: 1. If it is a screeching sound, first check if the brake pads are nearly worn out (the alarm piece makes noise). If they are new pads, check if there are any foreign objects caught between the brake disc and pads. 2. If it is a dull sound, it is mostly a problem with the brake caliper, such as wear on the moving pins or detachment of the spring plate. 3. If it is a hissing sound, then there could be multiple issues, including problems with the caliper, brake disc, or brake pads. If the noise is continuous, first check if there is any dragging brake, as poor caliper resetting can cause prolonged friction between the disc and pads, leading to abnormal noise under certain conditions. Then check if any foreign objects are stuck between the pads and disc. If the pads are new, check if the brake disc has grooves, as localized friction can cause abnormal noise. If the disc is fine, consider whether the brake pads are too hard or if the noise-damping shims were installed incorrectly.
I know this issue all too well from friends who drive Wuling vans. The brake squealing on Hongguang models is mostly caused by brake pad issues. The OEM brake pads have high metal content, making them prone to producing sharp metallic scraping sounds when starting with a cold engine – like nails on a chalkboard. If you frequently haul loads and the brake pads wear down to the metal backing plates grinding against the rotors, the noise becomes even louder with alarming clunking sounds. I remember once finding a small stone lodged in a friend's right rear wheel during inspection – it whistled with every brake application. For quick checks, you can measure the remaining brake pad thickness yourself; replace immediately if it's under 3mm. Also, dried mud splashed on wheels can cause creaking noises – sometimes a wheel wash solves it. Safety first – never ignore persistent noises while driving.
