What are the reasons for the rear axle noise in Wuling Hongguang S?
2 Answers
The main reason for the rear axle noise in Wuling Hongguang S is mostly related to meshing clearance issues. Below are the causes and solutions: 1. Excessive meshing clearance: Noise occurs at the rear of the vehicle body during gear shifting, deceleration, or sudden changes in speed. The primary causes are excessive meshing clearance between the conical drive and driven gears, cylindrical drive and driven gears, planetary gears and axle shaft gears, or between the axle shaft gear keyway and axle shaft spline teeth. Solution: Adjust the clearance or replace the relevant components. 2. Object friction: Noise from the axle shaft and axle shaft sleeve. When the axle shaft or axle shaft sleeve is bent, they rub against each other, causing noise during vehicle operation; if the rubbing is severe, it may turn into a knocking sound. Solution: Replace the relevant components or take the vehicle to a repair shop for servicing.
There are several common reasons for rear axle noise. I've been driving the Wuling Hongguang S for several years and recently encountered this issue, mainly caused by differential gear wear, resulting in abnormal noises, especially noticeable during turns or acceleration. Another reason is bearing damage; prolonged driving or overloading can cause premature aging of the rear axle bearings, leading to a humming noise. Insufficient lubrication is also a key issue. If the rear axle oil of the Wuling Hongguang S is not changed for a long time, the oil quality deteriorates or leaks, causing dry friction between gears and resulting in loud noises. I also experienced a loose driveshaft once, which made the entire chassis vibrate noticeably on uneven roads. If these issues are not repaired promptly, the noise will worsen and may even lead to component burnout, significantly increasing repair costs. It's recommended to first check the rear axle oil level and top it up if necessary. If the noise persists, it's best to have a professional mechanic inspect the bearings or gears, as driving safety should always come first.
