Fuel pump not to hum?

2007 TOYOTA CAMRY
300,000 MILES • 2.5L • 2WD • AUTOMATIC
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JOE1953
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What all can cause fuel pump not to hum when turn key on?
Apr 24, 2026 at 4:50 PM
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STRAILER
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Sure, it can be the pump is burned out or the C/opn relay is not working or the MAIN EFI fuse is blown which is in the fuse panel on the left side of the engine compartment. The fuel pump can have a bad ground as well which is at the left C pillar. Here is the wiring diagrams for the system so you can see how it works. Check out the images (below). Let us know what you find.
Apr 25, 2026 at 8:47 AM
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JOE1953
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the pump hum when i jump wire it. where is the C/opn relay and the MAIN EFI fuse located?
Apr 25, 2026 at 9:33 AM
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STRAILER
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The fuse is in the under the hood fuse panel. The fuel pump relay is part of the integration relay. Check out the images (below). Please let us know what happens.
Apr 26, 2026 at 11:52 AM