2003 F350 Superduty electrical problems

Asked by Guru9TR9VJ Mar 28, 2021 at 12:08 PM about the 2003 Ford F-350 Super Duty King Ranch Crew Cab LB 4WD

Question type: Maintenance & Repair

I just bought a 2003 F350 Super Duty.  It has several electrical problems that may be related but I can't figure it out.  Here are the faulty items:
* tail lights
* parking lights
* instrument cluster lights
* windshield wipers (the motor unit clicks when engaged but doesn't move)
* windshield washer pump (pump works when connected to 12v)
* trip computer
* cruise control
Fuses #17 (lights) and #33 (wipers, etc) are good.  The Smart Junction Box seems to be a common element but I don't know how to troubleshoot it.
Headlights, backup lights, door locks, windows, seats, etc all work.

1 Answer

Guru9TR9VJ answered 3 years ago

I found the likely problem for the tail lights, parking lights, and instrument cluster lights. The contacts for fuse #17 are burned away. The area around that fuse is a little melted too. I'm replacing the entire fuse block and will see if that fixes this and the other electrical problems.

Mark helpful

Your Answer:

Related Questions

  • 2003 F350 Superduty electrical problems 1 Answer

    I just bought a 2003 F350 Super Duty. It has several electrical problems that may be related but I can't figure it out. Here are the faulty items: * tail lights * parking lights * instrument cluster...

    2003 Ford F-350 Super Duty King Ranch Crew Cab LB 4WD

    -

    Maintenance & Repair

  • elec problems with f350 1 Answer

    my 2017 f350 with a gas engine will not start. i turn the key and nothing happens no lights in the cab work no turn signals work nothing no clicking sound. the battery is good

    2017 Ford F-350 Super Duty

    -

    Maintenance & Repair

  • Ford 2003 F350 electrical problem 1 Answer

    When you accelerate this truck the gauges pin to the left. It doesn't happen all the time. I have replaced the altenator twice.. Any help would be appreciated. Thanks.

    2003 Ford F-350 Super Duty XLT Extended Cab LB 4WD

    -

    Maintenance & Repair

  • F350 truck superduty,scoff road,2003,,turbo diesel . 1 Answer

    Does it have an International 7.0 engine

    2003 Ford F-350 Super Duty XL Extended Cab LB 4WD

    -

    Maintenance & Repair

  • problems with start-2003 6.0 2 Answers

    problems with start-2003 6.0 power stroke in the cold weather conditions

    2003 Ford F-350 Super Duty

    -

    Maintenance & Repair

Shortcuts

Search Ford F-350 Super Duty Questions

CarGurus Experts

  • #1
    Bigbob Reece
    Reputation
    5,260
  • #2
    tikun
    Reputation
    3,440
  • #3
    JoeAndJoe
    Reputation
    2,830
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-250 Super Duty
17 Great Deals out of 1,169 listings starting at $8,995
Used Ford F-450 Super Duty
3 Great Deals out of 155 listings starting at $22,777
Used Ford F-150
321 Great Deals out of 13,751 listings starting at $1,712
Used Chevrolet Silverado 2500HD
27 Great Deals out of 1,242 listings starting at $9,500
Used GMC Sierra 2500HD
25 Great Deals out of 1,495 listings starting at $8,000
Used Dodge RAM 3500
28 listings starting at $14,999
Used Ford F-350 Super Duty Chassis
8 Great Deals out of 65 listings starting at $16,995
Used Dodge RAM 2500
16 listings starting at $7,900
Used Chevrolet Silverado 1500
231 Great Deals out of 5,909 listings starting at $2,975

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.