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1991 Ford F-150 Fuel Delivery

Tiny
WOLFIE23B
  • MEMBER
  • 1991 FORD F-150
  • V8
  • 2WD
  • MANUAL
  • 230,000 MILES
This particular truck has duel fuel tanks. The rear tank started to have delivery problems and the engine began to sputter, now when I flip to the rear tank the engine will not stay fired. I was wondering if on this model year of the F-150 would the rear tank share a fuel pump with the front tank or are they separate.
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Monday, September 27th, 2010 AT 10:47 AM

4 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
There are actually 3 fuel pumps in that system. There is a low pressure "feeder" pump inside each tank and a pressure pump mounted on the frame.
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Monday, September 27th, 2010 AT 10:50 AM
Tiny
WOLFIE23B
  • MEMBER
  • 2 POSTS
Ok thanks, obviously I am having a feeder pump problem because the other tank works great. Again thank you.
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Monday, September 27th, 2010 AT 10:55 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
Make sure it's not the switch for the tanks that controls those pumps.
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Monday, September 27th, 2010 AT 11:00 AM
Tiny
WOLFIE23B
  • MEMBER
  • 2 POSTS
That would make sense, I am also having a problem with the switch for the wipers and there are in the same area. I will check, thanks again.
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Monday, September 27th, 2010 AT 1:27 PM

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