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故障现象:一辆2004年雷克萨斯LS430轿车,行驶里程为320000km,搭载3UZFE的8缸发动机。客户反映发动机转速无法上升,发动机故障灯点亮。故障诊断:与客户沟通后,才知道该车辆因水温高导致缸体和缸盖变形而无法修复,之后在修理店更换二手的发动机总成,据店内的修理工描述,在更换之后发动机运转良好,发动机故障灯未点亮,试车动力充足,准备交车的时候,想清洗下发动机
Symptoms: a 2004 Lexus LS430 sedan, driving mileage of 320,000 km, equipped with 3UZFE’s 8-cylinder engine. The customer reflected that the engine speed could not rise and the engine fault light was on. Troubleshooting: After communicating with the customer, I only knew that the vehicle could not be repaired due to the high temperature of the cylinder and cylinder head. After that, the used engine assembly was replaced at the repair shop. According to the description of the repair shop, after the replacement, the engine was running well, Engine fault light is not lit, test power sufficient, ready to pay when you want to clean the engine