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故障现象一辆2006款长安福特蒙迪欧顶配车,搭载2.5 L V6发动机和5速手自一体变速器,另外还配备了双区域三屏DVD娱乐系统,此车已累计行驶11.2万km,因多次出现怠速时发动机间歇性抖动的故障现象而进厂维修。据驾驶人反映,故障都发生在夜间行驶时,而在白天没有出现过。故障诊断由于该车的故障现象比较特殊,接车后,笔者仔细查看了此车的历史维修记录,并询问了曾维修过该车的技师,得知该车因该故障维修过多次,且每次维修后,试车人员都是确认无故障后才将车交给客户,客户试车也
Fault phenomenon A 2006 Changan Ford Mondeo top car, equipped with 2.5 L V6 engine and 5-speed manual transmission, in addition to equipped with a two-zone three-screen DVD entertainment system, this car has a total travel of 112,000 km, due to multiple Idle when the engine intermittent jitter phenomenon into the factory and repair the phenomenon. According to the driver, failures occurred at night when not seen during the day. Fault diagnosis Because of the car’s fault phenomenon is rather special, after the car, I carefully examined the car’s history of maintenance records and asked the technician who had repaired the car, that the car was repaired because of the fault many times, and After each repair, the test staff are confirmed after the fault-free car to the customer, the customer test also