This is also a very good example of why you should not simply ignore the CEL. This is the very first sign you will receive if there is a problem with the fuel pump relay. The CEL is the engine control module’s (ECU) warning that it has found something wrong with one of the car’s sensors. There are dozens of things that can cause the check engine light to come on, and this is another one of them. The infamous check engine light rears its ugly head yet again. These are the five most common symptoms of a bad fuel pump relay which could indicate that the issue you may be having with the fuel system potentially lies within the fuse box. So, how do you know if the fuse box is the location of your fuel pump relay issues? To ensure that the fuel pump works consistently and seamlessly, it needs a reliable and even source of electricity. The fuel pump relay is the automotive part that connects and regulates the fuel pump to the car’s power source, the battery. However, the fuel pump is not battery operated and thus needs a source of power. ![]() The fuel pump is in charge of ensuring that happens. Today’s engines require a very specific amount of fuel to be injected into the combustion chamber to properly function. ![]() What exactly does a fuel pump relay fuse do?Īs you can identify from the name, the fuel pump relay is associated with both the fuel pump and thus the movement of fuel throughout the system and combustion chamber. What causes the fuel pump relay fuse to blow?.What exactly does a fuel pump relay fuse do?.
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