2003 f150 turns over but will not start

Asked by riaglo Oct 11, 2010 at 09:05 PM about the 2003 Ford F-150 XLT Extended Cab SB

Question type: Maintenance & Repair

Have problems with starting my truck. Turns over OK and anti theft looks OK. Sometimes runs fine others nothing. I know its fuel related. Checked the cutoff switch under the passenger side and it's OK. Only other thing I can think of is it may be some fuel pump modulator above the spare tire. Anyway to check this. No code lights coming on fuse looks good. Don't believe its' the pump as sometimes it starts and runs great. Any suggestions would help.

8 Answers

135

another good thing to check is the fuel filter usually it could be a problem most times it will work or it wont with that if not try to look at a ignition problem

13 people found this helpful.

have your crank scensor replaced,sounds like it is going bad.

12 people found this helpful.
420

It is usually a good idea if you do not know how to fix it take it in for a diagnostic test. This will tell you what is required! It can be anything from a plugged fuel filter, sensors or wiring. Usually remote start for alarm. These systems require resetting at times can cost between $25-$100 depending on the dealership. If it is due for servicing see if they will take it in sooner, check online for recalls for the year of vehicle as well. If a recall is required for the fuel system they have to replace Do not attempt to work on your vehicle if you do not know anything about mechanics. You can cause a worse problem that may cost upwards of $1000 to fix plus they won't honor a warranty if the vehicle is tampered with. Hope this helps. Check with dealership, request a quote and know if there is a recall for this vehicle.

2 people found this helpful.
50

My truck runs great, but everyone once ina while it won't start. I have to undo my battery for ten mins,hook it back up and it will start! Its doing it more often now

5 people found this helpful.

Your Answer:

F-150

Looking for a Used F-150 in your area?

CarGurus has 14,098 nationwide F-150 listings starting at $3,888.

Postal Code:

CarGurus Experts

  • #1
    OJ
    Reputation
    41,960
  • #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 Chevrolet Silverado 1500
179 Great Deals out of 7,265 listings starting at $6,495
Used GMC Sierra 1500
157 Great Deals out of 8,201 listings starting at $5,500
Used Toyota Tundra
37 Great Deals out of 960 listings starting at $9,898
Used Ford F-250 Super Duty
22 Great Deals out of 877 listings starting at $9,995
Used Toyota Tacoma
39 Great Deals out of 882 listings starting at $9,975
Used Dodge RAM 1500
3 Great Deals out of 86 listings starting at $5,000
Used Ford Mustang
43 Great Deals out of 1,636 listings starting at $5,999
Used Ford Ranger
35 Great Deals out of 734 listings starting at $4,400
Used Chevrolet Silverado 2500HD
32 Great Deals out of 1,565 listings starting at $5,990
Used Chevrolet Colorado
34 Great Deals out of 1,135 listings starting at $4,951
Used Chevrolet Tahoe
14 Great Deals out of 789 listings starting at $6,730
Used GMC Sierra 2500HD
21 Great Deals out of 2,171 listings starting at $5,500

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.