Dual Fuel Pump Help.............
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Freshman User
Joined: May 2010
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Dual Fuel Pump Help.............
Ok, so im trying to trouble shoot the fuel pumps and I'm a bit lost.
Truck only runs on the front gas tank when I switch over to the rear tank engine dies immediately. So, i will flip the switch to the front turn the ignition without starting the engine, I can hear the fuel pump cycle. If i do the same for the rear tank I don't hear the fuel pump cycle....
Ok, I looked at the price of a fuel pump and the work that is needed to install it, and I was wondering of any other steps I can take to trouble shoot the pump before I spend money on it. any ideas
Thanks
Truck only runs on the front gas tank when I switch over to the rear tank engine dies immediately. So, i will flip the switch to the front turn the ignition without starting the engine, I can hear the fuel pump cycle. If i do the same for the rear tank I don't hear the fuel pump cycle....
Ok, I looked at the price of a fuel pump and the work that is needed to install it, and I was wondering of any other steps I can take to trouble shoot the pump before I spend money on it. any ideas
Thanks
Der Postmeister
Joined: Sep 2006
Posts: 6,859
Likes: 560
From: Long Beach, Calimexiforia
Ok, so im trying to trouble shoot the fuel pumps and I'm a bit lost.
Truck only runs on the front gas tank when I switch over to the rear tank engine dies immediately. So, i will flip the switch to the front turn the ignition without starting the engine, I can hear the fuel pump cycle. If i do the same for the rear tank I don't hear the fuel pump cycle....
Ok, I looked at the price of a fuel pump and the work that is needed to install it, and I was wondering of any other steps I can take to trouble shoot the pump before I spend money on it. any ideas
Thanks
Truck only runs on the front gas tank when I switch over to the rear tank engine dies immediately. So, i will flip the switch to the front turn the ignition without starting the engine, I can hear the fuel pump cycle. If i do the same for the rear tank I don't hear the fuel pump cycle....
Ok, I looked at the price of a fuel pump and the work that is needed to install it, and I was wondering of any other steps I can take to trouble shoot the pump before I spend money on it. any ideas
Thanks
Der Postmeister
Joined: Sep 2006
Posts: 6,859
Likes: 560
From: Long Beach, Calimexiforia
The wires off the pump. I think your pump is pooched though. Sometimes you can smack the underside of the tank in question, in the vicinity of where the pomp is, & they'll come back to life for a short time, but if it does, think of it as a final encore or death rattle! It will fail again soon!
Der Postmeister
Joined: Sep 2006
Posts: 6,859
Likes: 560
From: Long Beach, Calimexiforia
As in switching the actuating wires to the pumps could ID a bad switch?
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Freshman User
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Need help here, So can take the brown with white stripe wire and give a 12v source to see if its the switch...?
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Fleet Owner
Joined: Aug 2005
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From: Easton,Ks
If you put power on the brown with white stripe wire at the plug on the frame drivers side near the front of the rear fuel tank going to the tank and ground the Orange wire in the same plug and the pump runs it is very likely a bad switch.
If it does not run then bad pump.
A bad switch:
/
If it does not run then bad pump.
A bad switch:
/
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Fleet Owner
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From: Easton,Ks
By the way the wire colors on the other side of the plug going to the tank are Pink with a black stripe for the hot pump wire and Black for the ground wire.
The fuel pump is grounded at the drivers side on radiator support.
The fuel pump is grounded at the drivers side on radiator support.
Thread Starter
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Freshman User
Joined: May 2010
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If you put power on the brown with white stripe wire at the plug on the frame drivers side near the front of the rear fuel tank going to the tank and ground the Orange wire in the same plug and the pump runs it is very likely a bad switch.
If it does not run then bad pump.
A bad switch:
/
If it does not run then bad pump.
A bad switch:
/
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
Not easy either way, you would have to cut into the hot pump wire on either side of the plug at the tank so that way you would have a ground and the other way you have to pull the dash apart to get to the switch.
Your choice and it is one that I will have to do soon as my front tank just quit the same way.
Your choice and it is one that I will have to do soon as my front tank just quit the same way.
Thread Starter
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Freshman User
Joined: May 2010
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Not easy either way, you would have to cut into the hot pump wire on either side of the plug at the tank so that way you would have a ground and the other way you have to pull the dash apart to get to the switch.
Your choice and it is one that I will have to do soon as my front tank just quit the same way.
Your choice and it is one that I will have to do soon as my front tank just quit the same way.