Fuel system malfunction

Asked by Jcprice Feb 12, 2019 at 03:28 PM about the 1989 Ford F-150 XLT Lariat Standard Cab SB

Question type: Maintenance & Repair

I have an 89 f 150 with two fuel tanks, the truck claims its running from the front
tank but then the truck will die and have no gas in either. also when I fill up both
tanks have gas missing. Any ideas.

2 Answers
290

1943JRM answered 5 years ago

My 1987 F-150 w/4.9 had the same problem last summer. Tried sorting it out myself, but I finally had to take it to the Ford dealer I trade at. They sorted it out and it works fine now. Probably most independent repair shops could do the same.

Mark helpful
9,530

Mike answered 5 years ago

There's a tech bulletin out for these vehicles where the rear tank pumps into the front tank overfilling it. Check with Ford but I think you need to replace the front tank fuel pump and sending unit.

Mark helpful

Your Answer:

Related Questions

  • Fuel system malfunction 2 Answers

    I have an 89 f 150 with two fuel tanks, the truck claims its running from the front tank but then the truck will die and have no gas in either. also when I fill up both tanks have gas missing. Any i...

    1989 Ford F-150 XLT Lariat Standard Cab SB

    -

    Maintenance & Repair

  • Fuel system 1 Answer

    My fuel pump in the back tank went out front tank fuel pump was already out i changed both pumps, fuel filter, lines, it started fine and went down the rd about 6 miles and all of a sudden die...

    1990 Ford F-150 XLT Lariat 4WD SB

    -

    Maintenance & Repair

  • Fuel system 1 Answer

    My truck ran fine one day and went to leave the next and would not start. Checked fuse n changed relay and changed fuel pump. I am getting no power out of the relay or to the inertia switch. Any s...

    1997 Ford F-150 STD Extended Cab SB

    -

    Maintenance & Repair

  • Fuel Delivery system 1 Answer

    F150 v8 4.6L does it have a return or returnless fuel system

    2001 Ford F-150 XLT Extended Cab SB

    -

    Maintenance & Repair

  • 1990 F150 fuel system 1 Answer

    Front fuel tank is bleeding into the rear fuel tank and creating a pressure on the rear tank and is blowing gas on to the ground. I need to know why it is doing this and also how to repair it. If the ...

    1990 Ford F-150

    -

    Maintenance & Repair

Shortcuts

Search Ford F-150 Questions

CarGurus Experts

  • #1
    OJ
    Reputation
    41,900
  • #2
    Gene Arnett
    Reputation
    16,000
  • #3
    Rowefast
    Reputation
    15,500
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 1500
140 Great Deals out of 7,717 listings starting at $4,944
Used Ford F-250
6 listings
Used Ford Mustang
41 Great Deals out of 1,610 listings starting at $5,999
Used Ford Ranger
35 Great Deals out of 705 listings starting at $9,500
Used Jeep Wrangler
132 Great Deals out of 5,985 listings starting at $2,995
Used Toyota 4Runner
21 Great Deals out of 523 listings starting at $7,700

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.