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  1. #1
    Setting Up Camp
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    Brake problems , Ram truck

    Hi, new to the forum and just purchased 315RLTS. Having huge challenges with brakes. I have RAM 2500 that towed a 27 foot Jayco eagle with no issues. I can’t seem to dial in these brakes. Have truck trailer set to big electric and have moved the gain all over. The issue is when slowing getting off the freeway felt like there was almost no trailer brakes and then suddenly at about 10-15mph they just jolted me and locked up. This is the constant pattern in two short journeys with the rig, very little sense of braking and then suddenly jolt when going slow. Tried the 20 mph and engage only the trailer brakes and it feels like nothing at 20 mph and then sudden locked the brakes at 10-5 mph. Help greatly appreciated.

  2. #2
    Site Sponsor
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    Quote Originally Posted by kkmacs View Post
    Hi, new to the forum and just purchased 315RLTS. Having huge challenges with brakes. I have RAM 2500 that towed a 27 foot Jayco eagle with no issues. I can’t seem to dial in these brakes. Have truck trailer set to big electric and have moved the gain all over. The issue is when slowing getting off the freeway felt like there was almost no trailer brakes and then suddenly at about 10-15mph they just jolted me and locked up. This is the constant pattern in two short journeys with the rig, very little sense of braking and then suddenly jolt when going slow. Tried the 20 mph and engage only the trailer brakes and it feels like nothing at 20 mph and then sudden locked the brakes at 10-5 mph. Help greatly appreciated.
    It would probably be best if your question was in its own thread, as people will answer the original post and just lead to confusion.

    Is your trailer new?
    John & Kathy
    2014 F250 Lariat FX4 6.2L SBCC
    2014 Reflection 303RLS
    SW Indiana

  3. #3
    Long Hauler
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    Is this a new trailer, or a new-to-you trailer? Are all the tires locking up?
    Howard and Peggy
    2019 Momentum 351M, and 2018 RAM Cummins dually 6-speed.
    His: 1999 Honda Interceptor
    Hers: 2013 Spyder ST-S

  4. #4
    Site Team Redapple63's Avatar
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    Quote Originally Posted by kkmacs View Post
    Hi, new to the forum and just purchased 315RLTS. Having huge challenges with brakes. I have RAM 2500 that towed a 27 foot Jayco eagle with no issues. I can’t seem to dial in these brakes. Have truck trailer set to big electric and have moved the gain all over. The issue is when slowing getting off the freeway felt like there was almost no trailer brakes and then suddenly at about 10-15mph they just jolted me and locked up. This is the constant pattern in two short journeys with the rig, very little sense of braking and then suddenly jolt when going slow. Tried the 20 mph and engage only the trailer brakes and it feels like nothing at 20 mph and then sudden locked the brakes at 10-5 mph. Help greatly appreciated.
    First thing I would do is verify voltage coming out of the 7 pin from the truck and check all connections to ensure they are tight.

    Then with the truck and trailer connected electronically check the voltages at each wheel.

    Look for any obvious breaks or shorts along the way.

    Check the magnet at each wheel to ensure it’s engaging

    Last but not least, pull the wheels to ensure your grease seal is not blown. I think this is unlikely because they do grab just intermittently.

    I think you are chasing electrical gremlins.

    Bill
    2019 GMC 3500 SRW Sierra Denali Duramax
    2020 Reflection 315RLTS

  5. #5
    Long Hauler geotex1's Avatar
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    What year is the RAM? There was a bad run of integrated controllers that had to be replaced with a revised part number. There was also in a subsequent year or two a required software update. The RAM uses a pulse width modulated signal so it's not easy to diagnose for the average DIYer. Have you visited your dealer and asked them to check it's performance? I realize you indicated you towed a prior trailer fine, but coincidences happen and process of elimination always good practice. One thing I would spend the time doing is making sure to clean the contacts on the truck side connector and also the trailer side connector and make sure everything is making good contact and adjust accordingly. Wouldn't be the first gremlin caused by a bad tow vehicle to camper connection, nor discovery of a bad umbilical because the transporter stretched it...
    Rob & Nikki + Cloverfield
    2020 Grand Design Solitude S-Class 3350RL
    2015 RAM 3500 Longhorn Laramie Crew Cab, Long Bed, 4x4 Dually Cummins/AISIN

    Mountains of Pennsylvania

  6. #6
    Setting Up Camp
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    Thanks for insights. The truck is 2019 and the trailer is 2023. These are great first steps (actually a few second and third that are probably outside my skills set!). It seems electrical in its behavior was just wondering if there are “normal” break-in dynamics that I should be aware of. Thanks for the help!

  7. #7
    Site Sponsor SolarPoweredRV's Avatar
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    Quote Originally Posted by kkmacs View Post
    Hi, new to the forum and just purchased 315RLTS. Having huge challenges with brakes. I have RAM 2500 that towed a 27 foot Jayco eagle with no issues. I can’t seem to dial in these brakes. Have truck trailer set to big electric and have moved the gain all over. The issue is when slowing getting off the freeway felt like there was almost no trailer brakes and then suddenly at about 10-15mph they just jolted me and locked up. This is the constant pattern in two short journeys with the rig, very little sense of braking and then suddenly jolt when going slow. Tried the 20 mph and engage only the trailer brakes and it feels like nothing at 20 mph and then sudden locked the brakes at 10-5 mph. Help greatly appreciated.

    I would begin looking at the truck's brake controller. As has been suggested get your controller checked out by the dealer (be sure to get the best tech that knows these controllers.). Verif you have the latest software update.

    I would also go through all the settings for the brake controller in great detail with the owners manual in hand.

    Check for things like:

    Electric Over Hydraulic brake setting.

    Any type of activation delay programmed into the controller.

    Verify every setting possible.
    David and Peggy
    2019 Ford F350 Lariat, 6.7L Diesel, Dually, Long Bed
    Running with 20k Reese Goosebox (Love It) and Ford Factory "Puck" system.
    Stopping with 8,000 lb Disc Brakes and Titan Hydraulic over Electric Brakes system.
    Powering all this fun with 1200 Watts of Solar, two Tesla, Model S, battery modules, 24 volt Victron Inverter.
    2018 Solitude 310 GK

  8. #8
    Rolling Along jleonard's Avatar
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    Quote Originally Posted by kkmacs View Post
    Thanks for insights. The truck is 2019 and the trailer is 2023. These are great first steps (actually a few second and third that are probably outside my skills set!). It seems electrical in its behavior was just wondering if there are “normal” break-in dynamics that I should be aware of. Thanks for the help!
    My new 2022 trailer didn't brake for crap the first few times out. It got better gradually and is fine now after a couple of adjustments.
    Jay Leonard
    New Port Richey, Fl
    2022 Imagine 2600 RB, 2021 Ram 2500 CC Bighorn 6.7L Cummins

  9. #9
    Site Sponsor
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    Being it's a new trailer, have you burnished the brakes? https://www.youtube.com/watch?v=d9HDloz9fq8&t=2s
    This applies to electric brakes - not sure what you have...
    Chad
    2023 23LDE 965W Solar, Victron Multiplus, Solar Controllers, Cerbo GX, 4x280AH DIY Lithium Batteries, SeeLevel Tank Monitoring, Shock Absorbers (Replaced 2022 22MLE)
    2022 F350 6.7L Superduty, Carbonized Gray, Ultimate Lariat Pkg, 4WD, Crew Cab, 160" Wheelbase, 3.55EL Rear End, 3566# Payload
    Adaptive Steering, Ultimate Camera Pkg, 20" Wheels, 397 Amp Dual Alternator, ARE Topper (Replaced 2004 F150)

  10. #10
    Seasoned Camper OshawaDave's Avatar
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    If it's a new trailer, I'd take it to the dealer for a warranty check.

    I went through this with my 2022 trailer- the RV dealer tried to blame my truck for no brakes. I had a buddy hook up his Ram to my my trailer and the same symptoms appeared. It was the trailer and not the truck.
    Dave & Carol
    Eastern GTA, ON
    2022 Reflection 303RLS Fifth Wheel
    2017 GMC 2500 Crew Cab pick up (6.0 litre Gasser)

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