一辆三峰乘用车,在二级维护后的行程为十几千米时就发生行驶发冲现象,但停车熄火20s后又能正常行驶十几千米。检查分析根据故障现象,很像是供油系统出现了故障,就先后更换了汽油滤清器,清洗了化油器,并对燃油箱进行了彻底清洗,然后装复试车,发现故障现象依然如故。接着又检查了点火线圈及断电器触点,也未发现问题。更换了分缸线后,在原地起动发 A Sanfeng passenger car, after the maintenance of the second trip occurred when more than a dozen kilometers of driving hair Chong phenomenon, but after parking off 20s can normally run more than ten kilometers. Inspection and Analysis According to the fault phenomenon, much like the fuel system failure, it has replaced the gasoline filter, cleaning the carburetor, and the fuel tank was thoroughly cleaned, and then install the test car and found that the fault still remains the same . Then check the ignition coil and breaker contacts, but also found no problem. After changing the cylinder line, start the hair in place