故障现象 一辆桑塔纳轿车在高速公路上行驶,发动机突然熄火,上下活动一下加速踏板,发动机又起动运转,车辆恢复正常行驶。 由于上述故障现象的出现不是很频繁,而且在怠速和加速时又没有发现此故障,因此,没有十分注意。可是,过了 Symptom A Santana car driving on the highway, the engine suddenly turn off, about the accelerator pedal up and down activities, the engine has started running, the vehicle back to normal. Because of the above symptoms are not very frequent, but also in idling and acceleration did not find this failure, therefore, did not pay great attention. However, over