Switch for fuel tanks.
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Joined: May 2007
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Switch for fuel tanks.
I have a 91 f150 with the 300 in it (6CYL). I am having a prob.when I swap from the front tank to the back one. It fills the front one back up. Also the front fuel pump is going out ..... I went to the parts store and got a new fuel pump. When I was there the parts house today they told me that there was a valve in the fuel lines that was bad & that was causing the prob. After dropping both fuel tanks, I do not see any thing that even looks like the part they showed me. I all so have the Chilton book here & it does not show that part either.
I was told by another person that the fuel pumps, when working right would fix this prob..... Is this true. Any help would greatly help.
Thanks.
I was told by another person that the fuel pumps, when working right would fix this prob..... Is this true. Any help would greatly help.
Thanks.
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
Ok you have a bad front Fuel delivery module, this module contains a fuel pump and two valves, a check valve and a shuttle valve. One of the two valves is bad.
Here is an image of it:
http://i54.photobucket.com/albums/g9...yAssembly2.gif
and fuel system:
http://i54.photobucket.com/albums/g9...FielSystem.jpg
Here is an image of it:
http://i54.photobucket.com/albums/g9...yAssembly2.gif
and fuel system:
http://i54.photobucket.com/albums/g9...FielSystem.jpg
Last edited by subford; May 9, 2007 at 08:38 PM.
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
Originally Posted by HELP91F150
Is this the fuel pump or another part?
You just take the old one off and splice the wires inside the tank and push the new one on.
Here is an image:
http://i54.photobucket.com/albums/g9.../module-4L.jpg
Last edited by subford; May 9, 2007 at 08:43 PM.
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
Originally Posted by HELP91F150
Thanks,
I just wanted to make sure before I put the tanks back in place. I have all ready replaced the fuel delivery module.
Thanks again for the help.
I just wanted to make sure before I put the tanks back in place. I have all ready replaced the fuel delivery module.
Thanks again for the help.
