I have my factory installed brake control set on 9, all new brakes on 5th wheel, still not stopping very well.
Have tested volts to each wheel with some what consistent readings with hand slide control but with foot brake inconsistent readings
2020 super duty/2021 Keystone 5th wheel w/ electric brakes, 12k empty/15k loaded
I've tried different setting in the trailer tow screen with not much luck.
Just wondering what others have there's set at? Thanks

 

I have a 2022 SD 6.7L F350, and pull a 5th wheel having a 23000lb GVRW, with 3 axles and electric over hydraulic disc brakes on all 6 tires. I run at about 8.5, anything higher it just seems to be too aggressive.

Can you lock all RV tires up when just pulling away (ie. in the dirt?)

 

I tow a variety of trailers, on some a setting of 6 makes the trailer brakes pull hard, some take 9.5 or 10 to get much out of them.
I would say to look at adjusting the trailer brakes, not the controller.

 

If I understand it properly your controller is hooked into the master cylinder and will vary the output voltage according to how hard you are applying your truck brakes.

I always set the trailer brakes by feel when stopping the truck and adjust accordingly.
I only use the manual lever when testing to see if the brakes work after hooking up.

 

I have my brake controller usually set at 9.5 pulling a Reflection 337RLS.

I do not like self adjusting trailer brakes. I had much better trailer braking when I adjusted the brakes manually on my last trailer.

 

2022 DRW 7.3 / 2021 Solitude (17k lbs) I have my TBC set to 4-4.5 anything higher and my trailer starts to lock up. My truck stops good set on 4-4.5 with my 5th wheel behind it. My previous tow vehicle was a 2005 DRW and the Ford TBC was set on 6 and I felt the same amount of effort from the trailer brakes I feel behind my new truck.

 

I pull a 25' Airstream with a GVWR of 7300lbs. My controller is set at 2.5. Anything more and I get low speed lockup of the trailer brakes.

 

That sounds like too much effort/too high of a setting to me. I have 2 fifth wheels, one a triple axle Toyhauler probably around 16k unloaded, the other a tandem maybe 15k unloaded. The triple brakes amazing with electric brakes somewhere between 7.5-9.5 depending on load. The tandem is terrible, it has electric over hydraulic brakes and I CAN NOT GET ALONG WITH IT! The brakes do in fact stop the rig, but the bias/ramping (whatever you call it) flat out sucks. At say 6 I have to get into the brakes too much. At 8 it’s overly aggressive. There is just no predicting it correctly. Anyhow happy medium I’ll call that one a 7 setting.

So your trailer at 9 seems high to me.

 

There is a Ford recall on the factory installed brake controller.

 

The gain on my brake setting for my TT and my dump trailer is both at 4.5. Higher than that it tends to lock up.

 

Thanks guys for all the great responds. But as we can all see based on the responses, there quite a bid of different setting guys/gals are using.
I'll start at the top of the post and work my way down in response to each post, unless I already covered it with a earlier responds.

#1 No lock up on gravel with hand slide control or foot pedal, not even close.

#2 Brakes all new and adjusted properly, checked and double checked after test run. 4 new backer plates, which includes shoes, springs, magnets, hardware. (not drums) Very confident /experienced mechanic. After initial inspection of original brakes, he found one grease seal leaking on shoes, two self adjusters not working properly, little star wheel wore down. So only one brake was working correctly and those shoes worn down but sill working. That's reason for all new brakes. Stops much better but still ways hoping for more.

#3 Testing voltage at each wheel on camper and plug in bed, does shows different readings with different pressure, when applying hand slide or foot. Hand slide pretty consistent but brake pedal not so much, but is hard to keep same pressure with foot when testing. I also only use hand control when testing and hooking up. Truck is definitely doing most of the work.

#4 Definitely no pull from behind from trailer. Only push.

# 5 Tried using bumper plug instead of in bed plug with same results.

#6 Yes "9" setting sounds high to me also. Different truck( gone now) with trailer 10k max setting 5 to 6 worked good

#7 Have tried different setting on dash and control with out much change, other than less braking. But will try again with the new brakes on. Will start out with less force see what happens.

#8 Ford tested brake control about 6 months age, Got classic Ford response "can not duplicate customs concern/nothing wrong with it". I Have removed/replaced the fuse under the hood (can't remember fuse # now), a few times, no change. Never have had the "no trailer attached" massage. Does say trailer is connected and disconnected when plugged and unplugged.
I have appointment next week for power fold mirror not folding, so I'll have them check brake control again.

Again thanks for every ones help and responds

 

Yup. My brakes “auto adjust” depending on how quick I stop. The harder I press on the brake pedal, I can feel the trailer brakes adjust accordingly.

 

I have about 40 various trailers arranging from single axles with no brakes to triple axles with tandems with disc. They are all set to different settings.

Drum brakes suck once they get worn. The drums get out of spec, number 1 problem if everything is set right.

I forgot on the higher end trucks, I do have settings for the brake controller on the driver screen, something like low, medium or heavy and and if it's electric over hydraulic.

I've replaced brakes quite often, everything could be new and the drums are usually the problem, The brake shoes will only expand so much

 

Are the shoes set up to the drums? if they wont lock at high setting have the mechanic check the adjustment (intial set up). if that is off then the self adjusters will either not adj or take forever to bring them up

 

I’m surprised at all of these high settings. I have a 30 ft gooseneck, that weighs 23,000 pounds loaded with hay, and I set the brakes 3.5 heavy electric. Anything more than that gets really grabby. The 40 ft trailer, which weighs 30,000 loaded, runs at 4.0 heavy electric over hydraulic.