Why do I keep blowing trailer running light fuse on my ford 2012 f350? It blows even when no trailer hooked up and checked all wording.I think it's in the fuse panel but can't figure it out

10

Asked by Mar 25, 2016 at 08:02 PM about the 2012 Ford F-350 Super Duty XLT Crew Cab 4WD

Question type: Maintenance & Repair

7 Answers

5,795

must be bad ground...as far as I can see there is nothing else that might cause that~ make sure all connections to the bulb sockets aren't rusted~ sounds like perhaps your battery is not fresh nor connections free of corrosion...check your battery voltage replace if weak~ ...and be sure the cables are fresh and free of corrosion~...and the bulb sockets to...do not be afraid to use a small wire brush~

10

Why is it only blowing trailer running light fuse if it's battery or bad ground

1 of 1 people found this helpful.
5,795

it's about potential energy...the wiring behaves like a capacitor...and discharges when it gets with potential force to do so~...does that make sense....it's complicated~

1 of 1 people found this helpful.
10

Lights will come on when put new fuse in but after a couple of minutes it blows . I took fuse out and jumped terminals and they got hot started to smoke ?

5,795

main ground is well connected...that's all I got...good luck!~

1 of 1 people found this helpful.
5,795

fuse blows means a SHORT in the circus~ see what's heatin up and find out what that is connected to...maybe someone dropped somethin' on the connector...such things are not impossible...frequently wires get smooshed in the crack of the door, or undergo a lot of motion~ anyhow find the circuit that connects to that fuse and examine where the shorting occurs...this is dangerous...please tend to that before anything else~

5,795

https://www.youtube.com/watch?v=ufVuWznmJLA

Your Answer

F-350 Super Duty

Looking for a Used F-350 Super Duty in your area?

CarGurus has 25,472 nationwide F-350 Super Duty listings starting at $3,700.

ZIP:

Ford F-350 Super Duty Experts

  • #1
    Bigbob Reece
    Reputation
    2,780
  • #2
    tikun
    Reputation
    1,500
  • #3
    JoeAndJoe
    Reputation
    1,280
View All

Related Models For Sale

Used Ford F-250 Super Duty
340 Great Deals out of 45,694 listings starting at $1,700
Used Ford F-450 Super Duty
44 Great Deals out of 2,784 listings starting at $8,950
Used Ford F-150
2,609 Great Deals out of 198,113 listings starting at $1,300
Used Chevrolet Silverado 2500HD
323 Great Deals out of 30,582 listings starting at $3,500
Used Chevrolet Silverado 3500HD
101 Great Deals out of 11,433 listings starting at $6,950
Used Ram 3500
135 Great Deals out of 19,005 listings starting at $10,000
Used GMC Sierra 3500HD
56 Great Deals out of 4,736 listings starting at $12,995
Used GMC Sierra 2500HD
110 Great Deals out of 13,969 listings starting at $2,999
Used Ram 2500
151 Great Deals out of 31,705 listings starting at $6,680
Used Chevrolet Silverado 1500
2,299 Great Deals out of 169,799 listings starting at $1,000
Used Ford F-550 Super Duty
5 Great Deals out of 117 listings starting at $6,459

Used Cars For Sale

2017 Ford F-350 Super Duty XLT Crew Cab 4WD For Sale
5 Great Deals out of 658 listings starting at $37,766

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.