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How to Check Your Fuel Pump Method 1 Performing an Electrical Test 1.Check the fuel pump fuse. Often, it's not the pump itself that fails to function, but the power that supplies it. Check in your owner's manual for the location of the fuse box, then find the fuse that corresponds to the fuel pump. Pull it out and inspect it for signs of failure. If the fuse is blown, it will be broken or burned. If it looks good, check the rest of the fuses related to the fuel system for signs of being blown and replace them, if necessary. If no fuses are blown, have a helper turn the key while you listen for fuel pump relay clicking on. .
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