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Fuel Pump

ChRoNo16

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ChRoNo16 Enthusiast

ChRoNo16

Posted
Posted

My fuel pump isnt getting enough voltage, seems to only get about 10 volts. My idea is to wire a military toggle switch to a 12volt source, and just start and stop the pump manually.

 

Anyone got thoughts or ideas or tried this before? I have till the end of the week then I cant touch the truck until next March

rodram Enthusiast

rodram

Posted
Posted

the low voltage at your pump is likely due to a poor ground connection somewhere.. try cleaning and tightening any ground wires you can find associated with the circuit.

 

if you are going to direct wire the pump, I would put an inline fuse on the wire (I have no idea what amp-rating it should be)....

 

and you are going to want to ALWAYS remember to turn off this switch every time (you and anyone else that drives the truck..) .. if for whatever reason the fuel pump keeps supplying fuel to the throttle body you will get excess gasoline in the system and some of it will end up in your oil .. for this issue you might be better off providing the 12V from a line that has switched power off of the ignition switch ... then put a in-line fuse and then connect to the fuel pump... but if the ground wires are not good you still won't have full 12V at the pump.

ChRoNo16 Enthusiast

ChRoNo16

Posted
  • Author
Posted
the low voltage at your pump is likely due to a poor ground connection somewhere.. try cleaning and tightening any ground wires you can find associated with the circuit.

 

if you are going to direct wire the pump, I would put an inline fuse on the wire (I have no idea what amp-rating it should be)....

 

and you are going to want to ALWAYS remember to turn off this switch every time (you and anyone else that drives the truck..) .. if for whatever reason the fuel pump keeps supplying fuel to the throttle body you will get excess gasoline in the system and some of it will end up in your oil .. for this issue you might be better off providing the 12V from a line that has switched power off of the ignition switch ... then put a in-line fuse and then connect to the fuel pump... but if the ground wires are not good you still won't have full 12V at the pump.

 

 

 

 

 

 

My dad said the same thing, he said to fuse it. I will redo the grounds, more than likely run a new power line anyways and run it with a 10amp inline fuse. Should hopefully solve it. Ill let u guys know how it works out :nono:

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