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故障现象一辆2012年生产的一汽丰田RAV4车(车型为ACA37L),行驶里程约为1100 km,冷机时(发动机熄火放置10 h后)起动困难,有时候起动10多次都不能顺利起动发动机,有时将加速踏板踩到底,起动3次～5次可以起动;但一旦发动机起动着机后熄火再次起动,则可顺利起动着机,而且起动后发动机怠速、加速等各种工况运转正常。故障诊断根据上述故障现象,初步认为故障可能出现在以下几方面:一是燃油压力问题,主要怀疑燃油泵和油压
Trouble A FAW Toyota FAV Toyota RAV4 car (model: ACA37L) produced in 2012 has a mileage of about 1,100 km. It is difficult to start the engine when it is cold (after the engine is put out for 10 hours), and sometimes the engine can not start smoothly for more than 10 times , Sometimes the accelerator pedal in the end, start 3 times to 5 times to start; but once the engine start after the machine flameout start again, you can successfully start the machine, and after starting the engine idling, acceleration and other conditions normal operation. Fault diagnosis According to the above symptoms, initially that the fault may occur in the following areas: First, the fuel pressure, the main suspect fuel pump and hydraulic