传统燃油车发动机异响故障维修技术难点及解决方案研究

中图分类号：U464.134.4 文献标识码：A 文章编号：1003-8639（2025）11-0173-03

【Abstract】Aiming at the problems that abnormal noise faults of traditional fuel vehicle engines affect driving experienceanddriving safety，aswellasthediffculty in maintenance，thisarticle first clasifiesand sortsoutthree common types of abnormal noises related to rotational speed rhythm，load temperature，and local location.Technical diffculties such aslowaccuracyofreanalysisdiagnosis，complex maintenance operations，and limited equipmentcosts. Byestablishinga"primary-intermediate-advanced"hierarchical diagnosissystem，optimizingthecoldknockingcylinder repair and crankshaft main bearing noise treatment technology，and formulating management strategies for lubrication/ combustion systems and fasteners，the speed and qualityof abnormal noise fault repair canbe enhanced.Practice has shown thatthis shemecan reduce therecurrencerate andoccurrence rateoffaults，providing support forthe maintenance of traditional fuel vehicle engines.

【Key Words】traditional fuel vehicles；abnormal noise fromthe engine;technical difculties in fault repair; solution

0 引言

目前，汽车普及率持续提高，传统燃油车作为主要交通工具，其性能可靠性成为关注重点。（剩余4742字）