Fuel Pump wont stop running
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New User
Joined: May 2006
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Fuel Pump wont stop running
Hi,
I just bought another 1991 Ford. This one is a 1/2 ton XLT Lariet with the 302 and for the first time I own a short bed. I also have a 1991 F-250 XLT with a 460 and a 8' bed.
Here is the problem, ( I think) it will not run or at least not for long. The fuel pump, which I am guessing is in the rear tank will not stop running. On the F-250 the pump stops running after a few seconds after I turn on the key.
Where should I start to find out my problem with the fuel system?
Thanks!
I just bought another 1991 Ford. This one is a 1/2 ton XLT Lariet with the 302 and for the first time I own a short bed. I also have a 1991 F-250 XLT with a 460 and a 8' bed.
Here is the problem, ( I think) it will not run or at least not for long. The fuel pump, which I am guessing is in the rear tank will not stop running. On the F-250 the pump stops running after a few seconds after I turn on the key.
Where should I start to find out my problem with the fuel system?
Thanks!
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Look at the fuel pump relay, if it's shorted the pump will run as long as the key is on. Also test the fuel pump wiring, a short to ground will cause the relays to burn up. If both these checkout OK then the problem is in the computer, this is not something the average guy can fix so you'll need another computer.
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New User
Joined: May 2006
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Thanks for the reply. Where is the fuel pump relay? And if I need to replace the computer, where is it and are there any tricks to replace it? The wiring I am guessing is just looking, or how do I test it?.
Thanks again!
Thanks again!
