Electrical Question
Thread Starter
|
New User
Joined: Mar 2021
Posts: 6
Likes: 0
Electrical Question
Hey guys. I have a 2016 F-250. I hooked my RV up to it, plugging it into the 7 Blade power and the running lights do not work. Neither do my tail lights. The brake lights and turn signals do work. My buddy came over and plugged into his truck and all the lights worked. I seem to have power to the 7 Blade port. I can't figure out why when plugged into my truck they aren't working. I looked at fuses, put a new 7 blade on it and still nothing. Any help would be much appreciated.
Post Fiend
Joined: Nov 2001
Posts: 6,748
Likes: 118
From: Tallassee, ALabama
Did you check the truck female plug? I noticed a few times that the female connectors were "sprung" apart and would not make good connection. I could take a small screwdriver and push them together and it would make contact.
Also, did you take a test light and test your truck female 7 pin connector to make sure your lights worked?
Just a thought.
Also, did you take a test light and test your truck female 7 pin connector to make sure your lights worked?
Just a thought.
Fleet Mechanic
Joined: May 2018
Posts: 1,765
Likes: 502
That happened on my truck and it was a fuse on the truck side. But I do agree with checking the connectors, they can spread and no longer make contact but they will usually make contact if you wiggle the plug. My bet is a fuse though.
More Turbo
Joined: Oct 2010
Posts: 587
Likes: 101
From: Nampa, Idaho
If you've got power at the plug but no lights, and your buddy's truck lights up the running lights, I'd look at a ground problem. You can connect a wire to a good ground location on your truck and then connect the other end to a good ground on the trailer. This is just a way of testing that makes sure your truck's ground is getting to the trailer. If it makes your running lights work, then you have to figure out where you are losing the truck ground going to the plug.
Thread Starter
|
New User
Joined: Mar 2021
Posts: 6
Likes: 0
If you've got power at the plug but no lights, and your buddy's truck lights up the running lights, I'd look at a ground problem. You can connect a wire to a good ground location on your truck and then connect the other end to a good ground on the trailer. This is just a way of testing that makes sure your truck's ground is getting to the trailer. If it makes your running lights work, then you have to figure out where you are losing the truck ground going to the plug.
Trending Topics
Thread Starter
|
New User
Joined: Mar 2021
Posts: 6
Likes: 0
Update: I found the problem. It was fuse relay #29. All is good. Thank you guys for your input.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
mkohut
1973 - 1979 F-100 & Larger F-Series Trucks
16
Jun 8, 2018 09:36 AM
Lumpy78
1973 - 1979 F-100 & Larger F-Series Trucks
4
Jun 19, 2009 04:18 PM