04 Ford 1-150 fuel problems, dtc p0191

100

Asked by Jul 03, 2014 at 05:17 PM about the 2004 Ford F-150 Lariat SuperCrew 4WD

Question type: Maintenance & Repair

Hello. I have a 04 F-150 5.4l with 130k miles on it. the truck started to run a little rough the other day and then died and wouldnt restart. The truck has a few dtcs, P0191 P0190 and P300 random misfire. the other fuel pressure codes i read was a common fuel pump module. sure enough i went under my truck and found the old one had rotted a hole in the module and cracked in half. I ordered a new dorman unit with standoffs to keep it away from the from. After i Plugged the new unit in the truck atleast starts now, but still hesitates and stalls and the low fuel pressure dtc P0191 came back. The truck will idle but if i give it gas quick it stalls and studders bad. Could it be a fuel pump? or am i missing something else? Seems weird that it had 2 problems at the same time, but thats module had to be bad with the hole rotted in the back of it and it atleast starts now with the new one. Thank you for the help
Jon

5 Answers

75,625

Hi Jon, check that you're maintaining good fuel pressure at the fuel rail. Also check the vacuum hose for the fuel pressure regulator. Make sure it's in good condition and hooked up to intake manifold vacuum. HTH. -Jim

100

Jim, Thank you for the fast response. Just a update i was going to try to mess with it this morning and now the truck wont start again. it just cranks over but wont start. maybe the fuel module wasn't shot yet, even though it was rotted maybe it was still working at the time and i have another problem. Fuel pump maybe? or are there electronic issue that could cause the furl pump not to turn on besides the fuel pump module? thank you for your help Jon

2 of 2 people found this helpful.
100

I just realized that you could monitor fuel pressure via a scan tool, I plugged in a scantool and key on just sitting i have 0 psi and under cranking i only go up to .9 psi. any thoughts? Thanks

4 of 4 people found this helpful.
75,625

Glad to help, Jon. You can check the fuel pump relay and the fuel filter. If plugged, the fuel filter can cause a low/no pressure condition. Are you sure the fuel pump is running? If it's not, then check the relay first. HTH. -Jim

70

I have a question. Have a 5.4. It is throwing a code p0191. Fuel pressure sensor. Runs good till about 2,500-3000 rpm then it falls on its face. If I down shift or hit the gas to try and get power it will act like a engine break till 2.5- 3k rpm and spit, sputter. Can't afford to throw parts at it. Any idea's? F.P.S. or fuel pump etc

7 of 7 people found this helpful.

Your Answer

F-150

Looking for a Used F-150 in your area?

CarGurus has 230,442 nationwide F-150 listings starting at $1,300.

ZIP:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    9,980
  • #2
    dandyoun
    Reputation
    4,690
  • #3
    tennisshoes
    Reputation
    3,450
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,727 Great Deals out of 156,974 listings starting at $1,000
Used GMC Sierra 1500
1,131 Great Deals out of 61,547 listings starting at $1,295
Used Ford F-250 Super Duty
437 Great Deals out of 47,536 listings starting at $695
Used Toyota Tundra
622 Great Deals out of 35,972 listings starting at $1,500
Used Dodge Ram 1500
320 Great Deals out of 10,756 listings starting at $1,988
Used Toyota Tacoma
566 Great Deals out of 40,725 listings starting at $2,500
Used Ford Mustang
344 Great Deals out of 42,035 listings starting at $1,488
Used Ford F-350 Super Duty
377 Great Deals out of 27,187 listings starting at $3,900
Used Nissan Titan
334 Great Deals out of 21,878 listings starting at $1,995
Used Chevrolet Colorado
326 Great Deals out of 42,625 listings starting at $1,299
Used Chevrolet Silverado 2500HD
438 Great Deals out of 31,487 listings starting at $2,500
Used Chevrolet Tahoe
818 Great Deals out of 39,944 listings starting at $1,900
Used Ford Explorer
1,081 Great Deals out of 67,956 listings starting at $1,500

Used Cars For Sale

2018 Ford F-150 Lariat SuperCrew 4WD For Sale
10,971 listings starting at $24,271
2017 Ford F-150 Lariat SuperCrew 4WD For Sale
26 Great Deals out of 1,422 listings starting at $32,900
2016 Ford F-150 Lariat SuperCrew 4WD For Sale
21 Great Deals out of 904 listings starting at $28,000
2015 Ford F-150 Lariat SuperCrew 4WD For Sale
47 Great Deals out of 1,518 listings starting at $24,875
2014 Ford F-150 Lariat SuperCrew 4WD For Sale
52 Great Deals out of 1,055 listings starting at $14,950

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.