No fuel pressure

Asked by Stacey Mar 30, 2016 at 06:23 PM about the 2007 Ford F-150 FX4 SuperCrew

Question type: Maintenance & Repair

My 2007 Ford f150 5.4 has no fuel pressure. I took off the fuel rail and replaced
all of the injectors and reinstalled it and now I have no fuel pressure. How do I
fix this. I check the cut off switch it's fine. When I turn the key you can here the
pump in the tank Hume for about a second. The truck truns over but will not
start. I have a OBD reader and when watching the fuel pressure it pops up a lot
0.01 but drops off. No where close to 30 lb.

2 Answers
4,910

Mikbek answered 8 years ago

You have to have more pressure than that, need around 50-60 at least. Why do you not suspect fuel pump? Just because it hums doesn't mean it is pumping enough pressure. Does it build up pressure than come down, maybe indicating a spillage down the line? Do you smell gas, as if it were leaking? I suspect fuel pump but that's just me! Is the relay faulty?

1 people found this helpful.
Mark helpful
1,130

F150owner06 answered 8 years ago

Okay, so my f150 5.4 w/ 176000 miles has a tapping sound that has gotten worse. I have change my plugs and bad coils, Change oil on time, and just had a full engine diagnostics done. Nothing is wrong with anything internal. They said it sounds like valve chatter, maybe sludge built up. I also had po420-po430 codes a while back, I ran emissions cleaner in my gas and the CEL is gone. I know that doesnt mean my cars are good now. When I am at a constant speed and hit the gas it bogs down and jumps to accelerate. With over drive off, it does better. Maybe cause higher rpm?.. Im puzzled on How I can stop the tapping and fix the bogging issue

Mark helpful

Your Answer:

Related Questions

  • No fuel pressure 2 Answers

    My 2007 Ford f150 5.4 has no fuel pressure. I took off the fuel rail and replaced all of the injectors and reinstalled it and now I have no fuel pressure. How do I fix this. I check the cut off swit...

    2007 Ford F-150 FX4 SuperCrew

    -

    Maintenance & Repair

  • Fuel pressure 3 Answers

    Does the computer control fuel pressure?

    1992 Ford F-150 XL Extended Cab SB

    -

    Maintenance & Repair

  • F-150 has no fuel pressure at the rail. Cranks, won't start. Any suggestions? 3 Answers

    F-150 has no fuel pressure at the rail. Won't start but turns over very well. Any suggestions?

    2002 Ford F-150 Lariat SuperCab SB

    -

    Maintenance & Repair

  • 1993 Ford F150 XLT 5.8L Crank but no start after changing Fuel Pressure Regulator 2 Answers

    Okay so heres the deal. I bought a 93 F150 about a week ago. When it was bought it ran but not well, there is a lack of fuel said the guy i bought it from. i was able to limp it home with no real pr...

    1993 Ford F-150 XLT 4WD Extended Cab LB

    -

    Maintenance & Repair

  • no fuel pressure 3 Answers

    2002 explorer, no fuel pressure, new fuel pump, has power to pump, the relay has one hot wire and one hot wire with the key on. Not sure where to go from here.

    2002 Ford Explorer XLS 4WD

    -

    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
200 Great Deals out of 8,052 listings starting at $1,500
Used GMC Sierra 1500
139 Great Deals out of 8,257 listings starting at $3,000
Used Toyota Tundra
42 Great Deals out of 983 listings starting at $435
Used Ford F-250 Super Duty
24 Great Deals out of 784 listings starting at $4,290
Used Toyota Tacoma
37 Great Deals out of 728 listings starting at $9,975
Used Dodge RAM 1500
5 Great Deals out of 90 listings starting at $2,500
Used Ford Mustang
41 Great Deals out of 1,643 listings starting at $7,999
Used Ford Ranger
22 Great Deals out of 701 listings starting at $8,800
Used Chevrolet Silverado 2500HD
26 Great Deals out of 1,696 listings starting at $3,000
Used Jeep Wrangler
142 Great Deals out of 5,984 listings starting at $6,500
Used Ford Explorer
61 Great Deals out of 2,048 listings starting at $6,990
Used Toyota 4Runner
23 Great Deals out of 545 listings starting at $12,999
Used Chevrolet Colorado
40 Great Deals out of 1,233 listings starting at $4,995

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.