1991 Ford F250 fuel

1991 FORD F-250
13,400 MILES • V8 • 4WD • AUTOMATIC
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PHNXCRUZ
  • MEMBER
  • 1 POST
my question is in my ford f250, with dual tanks, if I fill the rear tank, it travels to the front tank over night, what un that system avoids that from happening, thanks Joe.
Nov 21, 2008 at 6:24 AM
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BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
sounds to me like a bad dual fuel tank selector vavle, its bolted to the frame under the vehicle. has 4 lines in and 2 out. when it fails it will take the gas out of the one tank and return it to the opposite one, and it fills up fast considering it uses about 10 percent of what it actually pumps.
Nov 22, 2008 at 9:48 AM
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