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2003 f250 battery light

Discussion in 'Truck & Equipment Repair' started by NLMCT, Mar 3, 2014.

  1. NLMCT

    NLMCT Senior Member
    from CT
    Messages: 148

    i have a 2003 f250 with a fisher set up ... last night i started the truck and the battery light was on and the lights looked a lil dim... i drove it home got it in my drive way dropped the plow and went to raise it back up and the lights go really dim and then the abs light came on only when i was raising the plow ?? annd now today.. nothing no lights at all .. any suggestions ????
     
  2. Brad3403

    Brad3403 Senior Member
    from Alberta
    Messages: 392

    Alternator failing maybe. I was on a roadtrip a few years ago and my battery light started to get brighter and brighter. I was in the middle of nowhere and had no choice but to push on. Eventually the truck died. I slept for 3 or 4 hours then tried restarting the truck. It fired right up and I was able to drive an hour or so to the closest town. Replaced the alternator and never had another problem.
     
  3. NLMCT

    NLMCT Senior Member
    from CT
    Messages: 148

    what about the abs light tho ??
     
  4. Wilnip

    Wilnip Senior Member
    Messages: 583

    Definitely an alternator gone bad. When the abs light comes on, the battery is almost dead. I bet the radio shut off also. Replace the altenator and charge the battery fully before driving it. Here's a hint, with key off, press and hold tripometer reset while turning the key. After several seconds, the odometer will read test. Release the odometer button and start the truck. You can now press the odometer button and scroll thru til it reads "batt". It will display the charging voltage. If it's below 13.4v, the altenator is bad. Properly charging systems should be over 14v. This trick applies to 99-03 trucks with digital odometers. Not sure what other years it works on.
     
  5. NLMCT

    NLMCT Senior Member
    from CT
    Messages: 148

    wow thanks very much... but the raido didnt shut off at all just the abs light when on when picking the plow up but its not doing that today at all ?
     
  6. NLMCT

    NLMCT Senior Member
    from CT
    Messages: 148

    should i upgrade the alternator to bigger amps ... any suggestions on what alternators to get ??
     
  7. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,983

    Alt is bad.....
     
  8. NLMCT

    NLMCT Senior Member
    from CT
    Messages: 148

    is replacing the alt hard ....
     
  9. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,983

    Really. Your serious?
     
  10. NLMCT

    NLMCT Senior Member
    from CT
    Messages: 148

    lol ive never done it before but i just watched a video it should only take like 15 min .... sorry
     
  11. leolkfrm

    leolkfrm PlowSite.com Addict
    Messages: 1,432

    depends on what is in the way!
     
  12. bdryer

    bdryer Senior Member
    Messages: 125

    Really!?! You're serious?

    Everybody has their first time doing things. I'm sure you weren't born an expert in everything….
    Give the guy a break. :nono:
     
  13. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,983

    Well, since he said its a ford and a 2003 that just narrows it down so much.
    Did you know that in 2003 there was 5 engine configurations. And of the 5 two had the options of dual alts.
    So seeing as how that info was never given how can someone honestly answer as to hard it is?
     
  14. NLMCT

    NLMCT Senior Member
    from CT
    Messages: 148

    It's a f250 ... And it hasn't done it all day today no battery light or and light ???
     
  15. Wilnip

    Wilnip Senior Member
    Messages: 583

    Check the plug and the wire on the back of the alternator. Check the terminals on the battery and the wires going to the terminal be sure everything is tight. if it is an intermittent problem I doubt that it's the alternator. Probably a loose connection somewhere. The plug on the alternator is known to go bad also.
     
  16. snowish10

    snowish10 PlowSite.com Addict
    Messages: 1,082

    Thats what happened to mine when the alt was bad too.
     
  17. mcprop

    mcprop Junior Member
    from 48328
    Messages: 11

    Check all you electrical connections especially the ground cables.. My lights used to dim when I lifted the plow even after I changed the cables. I installed a high output Alternator to compensate for the extra electrical load on the vehicles electrical system. The problem was fixed. You can check the alternator load with a volt/amp meter .
     
  18. ScubaSteve728

    ScubaSteve728 Senior Member
    Messages: 479

    sometimes the alt can be rebuilt. or you can upgrade amps and get a high output heavy duty one. they make large expensive ambulance ones for the 5.4
     
  19. NLMCT

    NLMCT Senior Member
    from CT
    Messages: 148

    truck completely died today abd light was on and the battery light ... radio also turned off on me .. guess i need to go buy a alternator today
     
  20. Wilnip

    Wilnip Senior Member
    Messages: 583

    So your plan was to just run it til it quit, huh? Great idea.