Bad fuel pump cause lack of power ?

Asked by GuruBGN82 Feb 02, 2019 at 07:31 AM about the 2000 Ford F-150 XL 4WD Extended Cab LB

Question type: Maintenance & Repair

I have a 2000 F150 4.6
I have replaced spark plugs coil packs fuel
filter and driver side catalytic converter.
The truck still has a lack of power especially
after it gets into overdrive.
  I only have 25 pounds of fuel pressure I
realize it should be somewhere closer to 40
would this cause the lack of power and the
complete loss of power after overdrive?

1 Answer
42,870

Hornet_2497 answered 5 years ago

You are absolutely right. At 25 psi fuel pressure, the injector pulse is only spraying 65% of what the engine needs at any given throttle position. Check the fuel pressure regulator before replacing the pump. Also scan for codes. A faulty fuel regulator will sometimes set a code on Fords. My Taurus did.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Bad fuel pump cause lack of power ? 1 Answer

    I have a 2000 F150 4.6 I have replaced spark plugs coil packs fuel filter and driver side catalytic converter. The truck still has a lack of power especially after it gets into overdrive. I on...

    2000 Ford F-150 XL 4WD Extended Cab LB

    -

    Maintenance & Repair

  • what would the cause be if i have no power to my electric fuel pump in the tank 2 Answers

    no power to the electric fuel pump in my 1996 ford f150 4 wheeldrive extended

    1996 Ford F-150

    -

    Maintenance & Repair

  • No power to fuel pump 1 Answer

    I have a 91 f150 and just replaced the fuel pump relay, fuel pump, oil pressure switch, and checked all fuses and connections. I had the pump working for about thirty minutes, went inside for abou...

    1991 Ford F-150 XLT Lariat 4WD SB

    -

    Maintenance & Repair

  • fuel pump has no power. it is a new pump. 3 Answers

    old pump was bad.

    1990 Ford F-150 S LB

    -

    Maintenance & Repair

  • No power to fuel pump 1 Answer

    I have a 91 f150, I have just changed the fuel pump relay, fuel pump, oil pressure switch. Also checked all the fuses and have no power to the pump. I did have it working for about thirty minute...

    1991 Ford F-150 XLT Lariat 4WD SB

    -

    Maintenance & Repair

Shortcuts

Search Ford F-150 Questions

CarGurus Experts

  • #1
    OJ
    Reputation
    41,830
  • #2
    Gene Arnett
    Reputation
    15,990
  • #3
    Rowefast
    Reputation
    15,480
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
193 Great Deals out of 7,824 listings starting at $7,777
Used GMC Sierra 1500
127 Great Deals out of 8,134 listings starting at $5,500
Used Toyota Tundra
39 Great Deals out of 962 listings starting at $10,698
Used Ford F-250 Super Duty
32 Great Deals out of 787 listings starting at $2,890
Used Toyota Tacoma
45 Great Deals out of 747 listings starting at $9,975
Used Dodge RAM 1500
88 listings starting at $8,094
Used Ford F-250
6 listings
Used Ford Mustang
39 Great Deals out of 1,624 listings starting at $5,977
Used Ford Ranger
19 Great Deals out of 704 listings starting at $8,999
Used Chevrolet Silverado 2500HD
30 Great Deals out of 1,673 listings starting at $8,999
Used Ford Explorer
49 Great Deals out of 1,994 listings starting at $6,990
Used Jeep Wrangler
136 Great Deals out of 5,987 listings starting at $8,990
Used Toyota 4Runner
25 Great Deals out of 545 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.