Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-14-2015, 08:56 AM   #1
Weekend Camper
 
Join Date: Feb 2015
Location: Colorado
Posts: 86
Tow/Haul mode and when are trailer brakes engaged?

So we took our 2016 Rezerve on it's first trip this past weekend. We stayed more on the plains of Colorado and didn't head up into the mountains, though with any drive there are some hills. our 2014 Ram 2500 handled it all really well. However, there were a couple of instances that we felt like something wasn't working properly when slowing down and we're trying to narrow it down. My gut tells me there's something wrong with the trailer brakes, husband isn't sure.

So we had the truck in tow/haul mode with the exhaust brake activated. On a couple of instances when starting to descend a hill after a climb the truck downshifted aggressively, but we also heard a big clunk from the hitch. As a passenger I felt like it was the trailer pulling back on the truck. The rest of the time on the road I didn't feel much as a passenger and my husband felt the trailer brakes were reacting as expected with the truck brakes.

I've also noticed when at our storage lot (all gravel), when my husband comes to a stop from about 5-10 MPH max, it appears that at least one of the trailer tires is skidding. I'm frequently outside of the trailer to direct into our spot, so I get a closer look of what's going on. I'm kind of wondering if there is a problem with the brakes that's possibly locking up one or more wheels. My husband does do a manual check of the brake setting every time he hooks up, making sure they engage. I was not in the truck when he tested the last hookup, so I can't say how strong of a pull the trailer had when manually engaging the trailer brakes.

The truck is new to us as well and there's no info in the owner's manual on how the tow/haul, exhaust brake works in combination with the trailer brakes. With that info...

Anyone know if the brake signal is sent to the trailer when the truck downshifts?
Any ideas on things to look at and check before we call the dealer for assistance?
We are also open to hearing what you folks use to test your brake controller settings.

Thank you.
__________________
Family of 5 looking forward to our adventures in the new rig. Dad, mom, and 3 girls who love to visit State & National Parks and get out for some hikes.

2014 Ram 2500 Laramie crew cab, short bed 6.7 Turbo Diesel
PullRite Superglide 16k
2016 Rezerve 27BH
COCamping is offline   Reply With Quote
Old 09-14-2015, 09:53 AM   #2
Site Team
 
Join Date: Dec 2007
Location: WI.
Posts: 7,613
When you were going down hill and the truck shifted aggressively as you stated, the clunk you heard was probably the king pin moving back or ahead inside of the jaws on the hitch with the sudden change in speed/down shifting.

I always do a test pull immediately after hooking up and the jaws locked and before raising the front legs. This is done with using the brake control lever in the manual mode. I want to make sure the jaws are locked before pulling ahead. You don't want to drop the rig on your truck.

You can test your trailer brakes in the gravel by going about 5 mph and using the manual mode to set them. You should then be able to see if they are set equally and locking up at the same time.
If they aren't, then I would recommend getting them adjusted. If you think this something you are comfortable doing yourself, it's not that difficult. If not then I guess you would have to rely on a dealer or some other service center.
__________________
2008 Cruiser CF26RK
2013 Ford Eco-Boost
Heavy duty payload - Max tow
Lloyd is offline   Reply With Quote
Old 09-14-2015, 10:16 AM   #3
Weekend Camper
 
Join Date: Feb 2015
Location: Colorado
Posts: 86
Thanks, we are pretty sure that the clunk is the king pin, the part I'm worried about is feeling like the trailer was pulling back on the truck. Maybe it was because I was the passenger and not the driver, so the sensation is different. So trying to determine if the truck would have even sent a brake signal to the trailer on a downshift (did not press the truck brakes).

We do a test pull to make sure all is hooked up. Just as you described, manually engage the brakes before raising the legs and pull ahead. Read other people's horror stories about dropping the trailer on the truck and are trying to avoid repeating those mistakes.

When it comes to adjusting the brake controller how hard should the trailer be pulling back when manually engaged if set properly? With our popup we were told just to the point that the tires locked up, so we started low and increased slowly until that occurred. Does the same apply to the larger rigs?

We are definitely comfortable driving around the lot and watching to see how the tires react when braking (manually engaged or otherwise), adjusting the brakes is a whole different story, but at least if we can call the shop knowing what is going on that should help us.
__________________
Family of 5 looking forward to our adventures in the new rig. Dad, mom, and 3 girls who love to visit State & National Parks and get out for some hikes.

2014 Ram 2500 Laramie crew cab, short bed 6.7 Turbo Diesel
PullRite Superglide 16k
2016 Rezerve 27BH
COCamping is offline   Reply With Quote
Old 09-14-2015, 10:44 AM   #4
Site Team
 
Join Date: Dec 2007
Location: WI.
Posts: 7,613
I don't know for sure how your Dodge works in respect to sending a signal to the trailer brakes with out you activating them. In my opinion, that doesn't happen.
Hopefully one of the Dodge guys will chime in here and clarify.
__________________
2008 Cruiser CF26RK
2013 Ford Eco-Boost
Heavy duty payload - Max tow
Lloyd is offline   Reply With Quote
Old 09-15-2015, 06:48 AM   #5
Ken
Weekend Camper
 
Ken's Avatar
 
Join Date: Nov 2013
Location: Texas
Posts: 98
I can tell you that my brakes do not engage when the engine brake is activated in tow/haul mode. You can adjust the setting of your factory trailer brakes but I can't remember at the moment how but it took me awhile to get it dialed in to my trailer. The good news once it is dialed in you can barely feel the trailer when braking. I do remember some post about wheels locking up when braking do to brake wires that were loose on the axles or something like that. But I would bet you just need to dial in your truck setting look in your manual that's were I found out how to adjust mine, if I remember correctly my setting is ( heavy trailer set on 8 )
__________________


Ken
Tyler, Texas
2014 Zinger ZT31SB
2012 Dodge Cummins Diesel 3500 SRW
Ken is offline   Reply With Quote
Old 09-15-2015, 07:36 AM   #6
Weekend Camper
 
Join Date: Feb 2015
Location: Colorado
Posts: 86
Quote:
Originally Posted by Ken View Post
I can tell you that my brakes do not engage when the engine brake is activated in tow/haul mode. You can adjust the setting of your factory trailer brakes but I can't remember at the moment how but it took me awhile to get it dialed in to my trailer. The good news once it is dialed in you can barely feel the trailer when braking. I do remember some post about wheels locking up when braking do to brake wires that were loose on the axles or something like that. But I would bet you just need to dial in your truck setting look in your manual that's were I found out how to adjust mine, if I remember correctly my setting is ( heavy trailer set on 8 )
Thank you. We do know how to adjust the brake setting. I think we were set to heavy trailer 6 on our last trip. I didn't think the brakes would engage when downshifting, but wasn't sure. My husband is going to take it out one day and change his truck display to show what is happening with the trailer brakes and see if it does it again. Quite possibly just a big bump from the aggressive downshift that we're not used to. We'll also take it out in the storage lot and have me do a visual for the wheels locking up.

Want to work out these little unknowns before we go on a long haul. We are still working on another weekend trip or 2 within a couple hours of home before we winterize to get more comfortable.

Thanks for the input.
__________________
Family of 5 looking forward to our adventures in the new rig. Dad, mom, and 3 girls who love to visit State & National Parks and get out for some hikes.

2014 Ram 2500 Laramie crew cab, short bed 6.7 Turbo Diesel
PullRite Superglide 16k
2016 Rezerve 27BH
COCamping is offline   Reply With Quote
Old 09-15-2015, 08:45 AM   #7
Full Time Camper
 
r2millers's Avatar
 
Join Date: May 2011
Location: So. Cal.
Posts: 570
Quote:
Originally Posted by Ken View Post
I can tell you that my brakes do not engage when the engine brake is activated in tow/haul mode. )
To Lloyd's point, your 7 pin connector has only 1 pin used for braking. It sends a signal based on voltage to the brakes for actuation.

This signal is sent from your controller and the engine brake doesn't affect that control.

Your tow/haul feature changes the shift points both up and down, helping to keep you in the correct gear and also keeping your tranny cooler as a result.

The trailer doesn't know if the engine brake is working or not, just receiving the signal from how much brake is applied.

Can you imagine if you had to make an emergency stop when the engine brake was activated and the trailer was diabled? Not a pretty picture!

It can feel like the trailer brakes aren't as effective when the engine brake operates because of the "push" effect going down a grade.
__________________

Bob and Better Half

2007 F-250 PSD, SW, CC, LB, 2WD
2006 TF32SS Cross Terrain Toy Hauler
Reese 16k slider
r2millers is offline   Reply With Quote
Old 09-15-2015, 08:53 AM   #8
Weekend Camper
 
Join Date: Feb 2015
Location: Colorado
Posts: 86
Quote:
Originally Posted by r2millers View Post

It can feel like the trailer brakes aren't as effective when the engine brake operates because of the "push" effect going down a grade.
The problem is I felt like the trailer pulled back on the truck when it downshifted. Maybe it's just the way the truck downshifts that I'm not used to. We've only had the truck a couple of months and got it specifically to buy this trailer. Our previous setup was a 2006 minivan and a popup (with electric brakes, but a totally different feel when towing).

Thanks for the detailed description about the brake controller.
__________________
Family of 5 looking forward to our adventures in the new rig. Dad, mom, and 3 girls who love to visit State & National Parks and get out for some hikes.

2014 Ram 2500 Laramie crew cab, short bed 6.7 Turbo Diesel
PullRite Superglide 16k
2016 Rezerve 27BH
COCamping is offline   Reply With Quote
Old 09-15-2015, 09:00 AM   #9
Full Time Camper
 
r2millers's Avatar
 
Join Date: May 2011
Location: So. Cal.
Posts: 570
I just think it's getting used to a bigger load behind you. Keeping playing with your controller to get the right setting. I set mine on 7 after playing with it for a bit. If the roads are wet, I drop it down to 6 to avoid lock up and slow down with more distance ahead of me.
The clunking is pretty common and not much to be concerned about if everything is secure. Just make sure you aren't using a 2" ball on a 2 5/16" receiver!
__________________

Bob and Better Half

2007 F-250 PSD, SW, CC, LB, 2WD
2006 TF32SS Cross Terrain Toy Hauler
Reese 16k slider
r2millers is offline   Reply With Quote
Old 09-15-2015, 09:08 AM   #10
Weekend Camper
 
Join Date: Feb 2015
Location: Colorado
Posts: 86
Quote:
Originally Posted by r2millers View Post
I just think it's getting used to a bigger load behind you. Keeping playing with your controller to get the right setting. I set mine on 7 after playing with it for a bit. If the roads are wet, I drop it down to 6 to avoid lock up and slow down with more distance ahead of me.
The clunking is pretty common and not much to be concerned about if everything is secure. Just make sure you aren't using a 2" ball on a 2 5/16" receiver!
Ball size is not an issue with the 5th wheel, but I'm guessing there's a story behind that advice. I've learned a lot from reading up on other's mistakes.
__________________
Family of 5 looking forward to our adventures in the new rig. Dad, mom, and 3 girls who love to visit State & National Parks and get out for some hikes.

2014 Ram 2500 Laramie crew cab, short bed 6.7 Turbo Diesel
PullRite Superglide 16k
2016 Rezerve 27BH
COCamping is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Crossroads RV or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 07:38 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.