故障现象一辆解放CA1091型货车,带负荷上坡就熄火,空车、平路和下坡行驶时发动机工作均正常。经多次修理,更换了化油器、汽油泵和点火线圈等,仍无效。检查分析因为汽车上坡行驶时,必须保证连续足量供油,所以上述故障主要原因应在供油系统。进行路试时,化油器与汽油泵之间无漏油现象,说明故障在汽油泵之前的管路,一般为汽油滤清器及燃油箱管 Failure phenomenon A liberation of CA1091 trucks, with the load on the slope to turn off, empty car, flat road and downhill driving the engine work are normal. After repeated repairs, replace the carburetor, gasoline pump and ignition coil, still invalid. Inspection and analysis Because the car driving uphill, you must ensure a continuous full fuel supply, so the main reason for the failure should be in the fuel supply system. During the road test, there is no oil leakage between the carburetor and the gasoline pump, indicating that the fault is in the pipeline before the gasoline pump, generally the gasoline filter and the fuel tank pipe