Dual Fuel Tank Switch
Senior User
Joined: May 2003
Posts: 329
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From: Miami
My truck transfers fuel from the front tank to rear tank (through the return line), and overfills it. The rear tank works fine! I called and wrote about the recall but it's too late and Ford won't honor it now. Has anyone done this themselves and if so how much was the part and how difficult was it?
Fleet Mechanic
Joined: Jul 2004
Posts: 1,552
Likes: 0
From: va
fuel selector valve
If fuel is going to another tank that's the part to replace. This is a common part that goes bad on 87 to 89 trucks. I just changed mine on my 87 F150 4.9. You can only get it at Fords, look for a small dealership should run about 65.00 ( ask for net price). Your valve has no electrical wire to it, Napa... etc has a generic part with a wire, they won't work for your truck. The Valve has two 10 mm bolts, very easy to replace. To replace first relieve the fuel pressure. Then use a flat tip screw driver and lift and pinch the bottom. Mark where each line goes. When you remove the rear lines they will keep running fuel so you need to cap the 4 rear lines with something. Do one line at a time.
good luck ,
mike
good luck ,
mike
Freshman User
Joined: Jan 2005
Posts: 31
Likes: 0
I was having a the same problem but I had to change the fuel pump relay and pigtail on the driverside firewall.
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Fleet Mechanic
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From: va
fuel selector value
Originally Posted by joe69
I can only use the back tank i cant switch to the front my dad said i need the swith on the trunk not on the dash
Joe 69 The fuel selector valve is located under the truck by the drivers seat, its black and had six fuel lines to it. Check everything else first.