问：我对2012年的Sportage有前端吱吱作响。这是一个“橡胶”吱吱作响的声音。有人建议这可能是衬套。它吱吱作响

Suspension bushings are designed to do a few things. They help mount and isolate components like control arms, sway bars, and engine/suspension cradles. They serve a double function to isolate the body and interior from road noises. Having suspension components mounted without bushings would transmit every little ripple, pebble, and sound, to the interior of the car and to your ears. Typically, these bushings are made of rubber while some performance vehicles may have polyurethane bushings. Polyurethane is typically reserved for performance vehicles and when modifying vehicles because it is less compliant. As the rubber bushings age, the rubber gets dry and hard. The first sign that they may be due for replacement is the squeaking noise you hear. The rubber will start to fall apart and eventually lead to poor handling and maybe even some clunking sounds.控制臂衬套andsway bar bushings是凸出声音上吱吱作响的最常见原因。另一个来源是球接头。随着球接头内的油脂随着时间的流逝，球接头内部的金属零件会互相摩擦，并产生类似的吱吱声甚至吱吱作响。让认证的技术人员检查车辆以找到确切的来源颠簸的噪音。