Ford f150 5.4 triton 03

Asked by GuruCBFTM Feb 16, 2019 at 05:32 PM about the 2003 Ford F-150

Question type: Maintenance & Repair

Truck sat for 2 years, clogged catalytic converters
was the original problem.  When I received truck I
cut off the converters and straight piped it. Used
starter spray and new gas to start it and it ran for
about 1min before stalling out. So then I changed
fuel filter and sprayed "seafoam" top engine
cleaner to clean injectors and put gas treatment
along with fresh gas in tank,  and will now start and
idle, I let it run on idle for 30min before trying to
drive but it keeps stalling out. Man what is going
on with my truck I just got??

1 Answer

F_O_R answered 5 years ago

If you removed the O2 sensors the engine has no idea what mixture to use. The removal of the cat will confuse the system even if the O2 sensors are still in place .

Mark helpful

Your Answer:

Related Questions

  • Ford F150 5.4 triton 7 Answers

    Can I take a 2008 F250 5.4 triton and put it into a 2005 F150 the engine in the F150 is also a5.4 triton.

    2005 Ford F-150 XLT SuperCab 4WD

    -

    Maintenance & Repair

  • Ford f150 5.4 triton 03 1 Answer

    Truck sat for 2 years, clogged catalytic converters was the original problem. When I received truck I cut off the converters and straight piped it. Used starter spray and new gas to start it and i...

    2003 Ford F-150

    -

    Maintenance & Repair

  • 2006 ford f150 5.4 triton swap with a 2011 4.6 Ford f150 motor 1 Answer

    I have a 2006 ford f150 5.4 triton does anyone know if I can swap that motor with a 2011 ford 4.6 liter

    2006 Ford F-150 FX4 SuperCab Styleside 4WD

    -

    Maintenance & Repair

  • I have a 2010 f150 5.4 triton. Can I take the motor and put it in an 03 f150? 2 Answers

    Will a 2010 5.4 triton motor go into a 2003 f150 xlt?

    2003 Ford F-150 XL 4WD SB

    -

    Maintenance & Repair

  • F150 triton 5.4 1 Answer

    I have a 2002 Ford F-150 7700 series, and I get mabey 10 mpg I’ve had the truck for 2 years put new headgaskets in Flo master exhaust, air raid cold air intake and I have a bed cover. It has 28600...

    2002 Ford F-150 XLT SuperCab 4WD LB

    -

    Maintenance & Repair

Own this car?

Share your experience with others.

2003 Ford F-150

Write a car review

Review another car

Shortcuts

Search Ford F-150 Questions

CarGurus Experts

  • #1
    OJ
    Reputation
    41,840
  • #2
    Gene Arnett
    Reputation
    15,990
  • #3
    Rowefast
    Reputation
    15,480
View All

Know more, shop wisely

Search

Related Models For Sale

Used Chevrolet Silverado 1500
4,093 Great Deals out of 130,455 listings starting at $800
Used GMC Sierra 1500
1,809 Great Deals out of 65,795 listings starting at $1,000
Used Toyota Tundra
1,038 Great Deals out of 31,745 listings starting at $2,650
Used Ford F-250 Super Duty
1,391 Great Deals out of 41,575 listings starting at $550
Used Toyota Tacoma
1,838 Great Deals out of 31,130 listings starting at $2,295
Used Dodge RAM 1500
83 Great Deals out of 1,575 listings starting at $1,100
Used Ford Mustang
905 Great Deals out of 22,357 listings starting at $783
Used Ford Ranger
593 Great Deals out of 11,569 listings starting at $1,900
Used Chevrolet Silverado 2500HD
1,057 Great Deals out of 30,362 listings starting at $1,350
Used Ford Explorer
2,159 Great Deals out of 62,559 listings starting at $1,000
Used Toyota 4Runner
1,230 Great Deals out of 18,341 listings starting at $1,800
Used Chevrolet Colorado
937 Great Deals out of 22,472 listings starting at $900

Used Cars for Sale

2024 Ford F-150 For Sale
51,021 listings starting at $27,865
2023 Ford F-150 For Sale
652 Great Deals out of 24,299 listings starting at $29,995
2022 Ford F-150 For Sale
583 Great Deals out of 5,950 listings starting at $18,999
2021 Ford F-150 For Sale
870 Great Deals out of 9,049 listings starting at $17,990
2020 Ford F-150 For Sale
611 Great Deals out of 6,038 listings starting at $8,500

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.