Question about Chevrolet Chevy
They are bad to blow this fuse when the fuel pump is going out. When you get on the gas pedal, the demand rises, and the pressure drops to a level to make the pump run more often, so if its going bad, the pump gets hot enough, or is shorting out internally to make the fuse blow. Since this is a 10 amp fuse, the pump must be getting pretty hot to blow it. The throttle position sensor wouldn't blow this fuse, as it is not powered off this side of the power supply, and works to ground anyway. Do this; When it blows again, feel the wires that go into the gas tank to see if they feel hot. You can also feel the wires going to the TPS, and you will see what I mean. The fuse you are talking about does blow when there is an issue with the fuel pump, or a short in the harness going back to the tank from the ECM. This system is also wired through the oil sending unit, so you may have to check there as well for any wires shorting to ground.
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Posted on Jul 29, 2008
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Posted on Jan 02, 2017
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