一辆日产单排座载货汽车的发动机为ＥＤ33型 ,起动预热系统为自动温控式。因发动机突然出现了动力不足、排气严重冒白烟的故障 ,被迫送往修理厂。经分析 ,初步确定为气缸进水。因此 ,对发动机进行了有针对性的检查 ,发现气缸压力普遍很低 ,然而气缸垫片却无烧蚀等漏气现象 ;接 A Nissan single row seat truck for the ED33-type engine, start warm-up system for automatic temperature control. Sudden power failure due to the engine, exhaust serious smoke white failure, was forced to send to the repair shop. After analysis, initially identified as cylinder water. Therefore, a targeted examination of the engine and found that the cylinder pressure is generally low, but there is no leakage of gaskets cylinder gasket phenomenon;