最近,我部修理所接修一东风EQ140载货汽车,送修的驾驶员反映说:该车原来运行良好,在经过电路保养后出现耗油量明显增加、运行中加速不良且发动机温度过高等症状,再次送原修理厂返修后,故障依旧。 我们根据驾驶员提供的情况,对该车进行了检查和路试。结果发现:该车仅在抵速小负荷下工作良好,在急加速的情况下有回火现象,在满负荷大油门 Recently, I repaired by the Ministry of repair of a Dongfeng EQ140 truck, repair driver said: the car was originally running well, after the circuit maintenance of fuel consumption increased significantly, running poor acceleration and the engine temperature is too high and other symptoms , Once again sent to the original repair shop repair, the fault still. We checked and road-tested the car based on the information provided by the driver. The results showed that: The car only works well under the condition of low speed of resistance, tempering in the case of rapid acceleration,