我有一个2003年道奇公羊1500继电器好保险丝好燃料p…

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JamesI 2003道奇公羊1500,不是从保险丝盒供电燃油泵保险丝好继电器好它不是发送功率的燃油泵

谢谢你,詹姆斯。所以继电器不点击当你打开的关键?你有多大的发动机?

不知道所有的信息,如车辆历史,被测试的组件或替换,需要运行任何测试的结果并没有被自己看着车,很难说到底是什么。我只能给你一个通用的答案,但我希望这可以帮助。如果燃料泵不是防止发动机启动运行,首先要做的是确认电力燃料泵。如果有权力去燃油泵我建议检查地面泵然后根据需要更换燃油泵。燃料泵应该运行一旦[电池](/ topics-battery-dodge /)电压(大约12伏特)和良好的地面。如果不是,燃料泵不好,需要更换。如果没有权力去燃油泵然后我建议去检查燃油泵继电器的输入来确定少了什么。例如继电器需要两个大国和一个地面操作。我建议检查删除一个继电器检查女性使用电压表别针。这也应该做一个助理是起动发动机。 Most of the time the fuel pump relay will have a constant power supply and ground even with the key turned off. Then the key is turned to the on position or once the engine is being cranked over the computer or even the ignition switch (sometimes another relay or power supply) will power up the third pin which will activate the relay. In some cases the computer will actually supply the ground going into the fuel pump relay. If this is the case you're still going to need to check this as an assistant is cranking the engine over. It should also have two power supplies as well. Again once the relay has the two powers and ground it should activate the relay and send power to the fuel pump. Thank you so much for giving me the opportunity to help you. I really appreciate your patience through this process. My goal is to provide you with excellent service. If you have follow-up questions on this same topic, please use the reply box below. To start a new conversation with me on a new topic, you can [request me here](//www.justanswer.com/car/expert-amedee/). Glad I can help. Please let me know if you have any further questions. Thanks and have a great day! Best Regards, Customer/p\>