Check Your Fuse #71

[Gil-galad]

The running lights on my travel trailer wouldn’t work as we were getting ready to head out on a multi-week trip. Troubleshooting on the trailer didn’t reveal anything so I figured it might be a blown fuse. Rather than delay our departure we decided to limit our travel to daylight hours and have the truck looked at later, since all other 7 pin functions were working correctly (stops, turn signals, brakes, aux power, etc.).

Just returned from the service department at a dealership along our route. The tech discovered that a 25 amp fuse had been installed in slot #71 at the factory, even though it is supposed to be a 30 amp fuse. He replaced the blown fuse with a correctly size one and now my lights are fully functional again.

Makes me wonder how many other incorrect fuses might be lurking…

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[lawrench]

That reminds me of when I purchased my 2019 Ranger.

The sales person was showing my wife and I the features of my new Ranger, but when he got to the Ford Pass App it would not connect. After about an hour of trying, he told us he would do some research and get back with us. We drove home and the next day, I started searching the internet for solutions. I could not find anything to lead me in a direction to resolve the issue. I opened the manual and started reading. I then started looking at the fuse boxes, and then I found the issue, the fuse was missing. I then started the Ranger and went to the nearest Auto Parts store and bought some fuses and the Ford Pass App has worked since.

 

[micl9]

My OCD is trying to send me out to the driveway (in the cold) to check my fuses against the factory repair manual. The only thing keeping me warm, and inside, is the fact that I already know the manual has mistakes!

 

[CB750F]

It's -20c, or -4F, I ain't going out to check that shit!

 

[Danager]

I up-rate all my fuses
its a prudent thing to do so that those small spikes in amperage don't leave you stranded.

While some automotive fuses will blow below what they are rating for, many will handle more for a short period.
A blown 25amp fuse is surprising when the circuit only calls for a 30amp. There are a lot of connectors between the fuse and all the lights. I’m guessing it had more to do with moisture somewhere and a less to do with the load.

 

[paval3]

Hopefully mine is correct since I know the running lights were working fine on my utility trailer when I used it 9 weeks ago to go for a load of bedding for horse stalls.

 

[got3fords]

I up-rate all my fuses
its a prudent thing to do so that those small spikes in amperage don't leave you stranded.

That's the dumbest thing I ever heard. Oh wait, you're joking. Whew!

 

[Bsqrd]

Ok, so I gave in and went out to the garage and checked mine. What a PITA to get to the fuse. Dumbest design ever for a fuse box location and access. Hey Ford give me an inch more slack on the cable so I can get the box out, please. Checking the latest version of the manual online, it calls for a 25A fuse. I have a 25A fuse installed in position #71. Curious what documentation available calls for a 30A fuse?

 

[Gil-galad]

Ok, so I gave in and went out to the garage and checked mine. What a PITA to get to the fuse. Dumbest design ever for a fuse box location and access. Hey Ford give me an inch more slack on the cable so I can get the box out, please. Checking the latest version of the manual online, it calls for a 25A fuse. I have a 25A fuse installed in position #71. Curious what documentation available calls for a 30A fuse?

That’s a great question. Now I’m even more confused.

Attaching the description portion of my work order…

 

[Bsqrd]

my owners manual calls for a 30.
so unless things have changed over time

footnote 2 refers to it being an LPJ type fuse.

Checked the following years latest owner's manuals online-
2019 - 30A
2020 - 25A
2021 - 25A

Now I'm confused. Wonder why the change or is there a TSB to be performed.

 

[micl9]

Checked the following years latest owner's manuals online-
2019 - 30A
2020 - 25A
2021 - 25A

Now I'm confused. Wonder why the change or is there a TSB to be performed.

My theory is that 2019 had errors that got corrected.
I could be wrong...

 

[Dgc333]

Ok, so I gave in and went out to the garage and checked mine. What a PITA to get to the fuse. Dumbest design ever for a fuse box location and access. Hey Ford give me an inch more slack on the cable so I can get the box out, please. Checking the latest version of the manual online, it calls for a 25A fuse. I have a 25A fuse installed in position #71. Curious what documentation available calls for a 30A fuse?

Why in the world would you want to remove the fuse box? Just flip down the panel under the steering column and the fuse box is right there front and center. One of the easiest access fuse boxes in any of the vehicles I have owned.

 

[Bsqrd]

Why in the world would you want to remove the fuse box? Just flip down the panel under the steering column and the fuse box is right there front and center. One of the easiest access fuse boxes in any of the vehicles I have owned.

Check the manual and look in the engine compartment. Not the case for this fuse.

 

[Motorpsychology]

That's the dumbest thing I ever heard. Oh wait, you're joking. Whew!

At least he replaced all the paperclip jumpers with fuses

 

[Bsqrd]

At least he replaced all the paperclip jumpers with fuses

Not to mention Ford using 7 different types of fuses in one vehicle. Gonna cost me a fortune to buy spares. ?

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