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04-17-2017, 11:40 AM
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#1
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Senior Member
Join Date: Jun 2015
Location: Bay Area
Posts: 765
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Brakes too sensitive?
Hello,
We were camping this weekend and on the way back I noticed that when coming to slow stop the trailer brakes would be very sensitive, i.e. the back of the tow vehicle was being forced to stop from the back by the trailer (hard braking by the trailer). I played with the Prodigy P2 boost, but it was happening even in the lower settings.
Anybody else experienced something like that?
Thanks!
__________________
28DSBH (MY2017)
Propride 1400
Solar powered 640W plus 400 Ah lithium batteries
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04-17-2017, 11:51 AM
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#2
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Senior Member
Join Date: Jan 2016
Location: Magnolia
Posts: 4,841
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Not me. I have the opposite problem...not enough braking
Sent from my iPhone using Tapatalk
__________________
2016 North Point 377 RLBH, with a few mods, disc brakes, shocks, Sailun g rated tires, wet bolts
2014 Ford F350 Platinum sold
2017 Ford F350 Lariat, CC, 6.7PSD, DRW, Trailer Saver BD3 hitch
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04-17-2017, 03:24 PM
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#3
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Senior Member
Join Date: Feb 2017
Location: Monkton
Posts: 109
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My Jayco is my first TT, and it took a bit of fiddling with the brake controller to get a smooth braking action where the TT is neutral in braking.
On my first outing, I was stopped on a hill and realized I was rolling backwards in spite of full braking on the TV. The TT was dragging me backwards.
I cranked up my brake gain and all appears to be normal now. I expect it will take a few more trips to get it dialed in perfectly, but I'm getting there.
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04-17-2017, 04:25 PM
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#4
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Senior Member
Join Date: Apr 2015
Location: Michigan
Posts: 2,650
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Had a similar problem, the P2 actually has two different setting you need to use to get proper braking. Depending on weight of your trailer vs tow vehicle weight, I used the parking lot at a local school after hours to test the settings. I started out with boost on 0 and power on 6, I had to increase power to 8 and got nutural braking. If I changed boost to 1 it got very jerky braking at any power setting. Its a trial and error process to get it right but start off by lowering the boost. Here is a link to the manual which spells out the process.
http://www.tekonsha.com/content/down...ion/N90885.pdf
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04-17-2017, 04:27 PM
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#5
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Senior Member
Join Date: Apr 2016
Location: Weatherford
Posts: 505
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I was having kind of poor braking so I jacked up my TT and adjusted the brakes this morning. It is supposed to have self adjusting brakes, but that adjuster only works when backing up. On my last several trips, the motor home behind me in storage was gone so I just pulled straight through and unhooked. I hope I didn't go too tight. Geeeezz I need to go camping, but grand children's birthdays are coming, so I'm stuck at home until May...
__________________
Jack and Delores, Weatherford, Texas
2016 White Hawk 28DSBH TT, 2014 Ram 4X4 2500 CTD
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04-17-2017, 05:01 PM
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#6
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Senior Member
Join Date: Jun 2015
Location: Bay Area
Posts: 765
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Thanks! The problem is that everything was OK until yesterday. Even with lower volts the brakes were grabby. Yesterday it was raining, maybe it was the problem with moisture...? Just hoping that the problem would solve itself
Quote:
Originally Posted by Sundancer330
Had a similar problem, the P2 actually has two different setting you need to use to get proper braking. Depending on weight of your trailer vs tow vehicle weight, I used the parking lot at a local school after hours to test the settings. I started out with boost on 0 and power on 6, I had to increase power to 8 and got nutural braking. If I changed boost to 1 it got very jerky braking at any power setting. Its a trial and error process to get it right but start off by lowering the boost. Here is a link to the manual which spells out the process.
http://www.tekonsha.com/content/down...ion/N90885.pdf
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__________________
28DSBH (MY2017)
Propride 1400
Solar powered 640W plus 400 Ah lithium batteries
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04-17-2017, 05:57 PM
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#7
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Senior Member
Join Date: Feb 2017
Location: Monkton
Posts: 109
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Inhave driven Dodges for a while and several of them had grabby brakes in wet weather. It smoothed out in 10 min or so. You might try feathering the brakes in rainy weather till it dries out.
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04-17-2017, 06:32 PM
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#8
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Senior Member
Join Date: Jun 2015
Location: smithville, ont.
Posts: 2,677
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Quote:
Originally Posted by Magnolia Tom
Not me. I have the opposite problem...not enough braking
Sent from my iPhone using Tapatalk
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Hahaha....
__________________
2016 North Point 341RLTS
520watts of solar. Morningstar MPPT
4 6volt 235ah Surrette batteries
2017 F-350 Platinum CC SRW
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04-17-2017, 06:32 PM
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#9
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Senior Member
Join Date: Jun 2015
Location: smithville, ont.
Posts: 2,677
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Sorry to hijack bono. Can you tell me about your batteries?
__________________
2016 North Point 341RLTS
520watts of solar. Morningstar MPPT
4 6volt 235ah Surrette batteries
2017 F-350 Platinum CC SRW
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04-17-2017, 07:22 PM
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#10
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Senior Member
Join Date: Sep 2011
Location: Lake City, MI summer, FL winter
Posts: 143
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Quote:
Originally Posted by deewaltguy
Inhave driven Dodges for a while and several of them had grabby brakes in wet weather. It smoothed out in 10 min or so. You might try feathering the brakes in rainy weather till it dries out.
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This ^^
My last Jayco was real touchy after a rain. Feathering the brakes generates the heat to dry them.
__________________
'07 Chevy Druamax LBZ
2017 Jay Flight 21QB
2012 Jay Flight 19RD (sold)
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04-17-2017, 07:43 PM
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#11
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Senior Member
Join Date: Jan 2016
Location: Magnolia
Posts: 4,841
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Quote:
Originally Posted by klassic
Hahaha....
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You can laugh now...your brakes are working! Lol
I'll be laughing soon too [emoji3]
Sent from my iPhone using Tapatalk
__________________
2016 North Point 377 RLBH, with a few mods, disc brakes, shocks, Sailun g rated tires, wet bolts
2014 Ford F350 Platinum sold
2017 Ford F350 Lariat, CC, 6.7PSD, DRW, Trailer Saver BD3 hitch
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04-18-2017, 07:54 AM
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#12
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Senior Member
Join Date: Sep 2016
Location: Near Richmond, VA
Posts: 241
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Quote:
Originally Posted by Sundancer330
Had a similar problem, the P2 actually has two different setting you need to use to get proper braking. Depending on weight of your trailer vs tow vehicle weight, I used the parking lot at a local school after hours to test the settings. I started out with boost on 0 and power on 6, I had to increase power to 8 and got natural braking. If I changed boost to 1 it got very jerky braking at any power setting. Its a trial and error process to get it right but start off by lowering the boost. Here is a link to the manual which spells out the process.
http://www.tekonsha.com/content/down...ion/N90885.pdf
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I have a Tekonsha controller and had the same problem as the OP. I followed the method above and they work perfectly now. When I got the controller installed I was a newbie, and the dealer said they set it up for me. They didn't.
__________________
2013 Jayco Jay Feather X17Z
2015 Nissan Pathfinder
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04-18-2017, 08:05 AM
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#13
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Senior Member
Join Date: Mar 2016
Location: Orange County
Posts: 644
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I had the same problem with my old toyhauler. It had 4 wheel electric brakes, and I couldn't seem to get them adjusted properly. They would drag a little bit, then at random times they would suddenly jam on harder and drag us to a stop. Turns out, one of the brakes had a bad connection that a service tech found in two minutes. This was after I installed a new brake controller on our way out to a camping trip. Once he found and fixed that in five minutes, the brakes were pretty consistent.
What I found out then was that my trailer brakes would work differently after they were warmed up from driving a few miles than when they were dead cold. If I adjusted them when full cold, they would get grabby once they got warm. So, I adjusted them warm, and put up with less braking for the first 10 miles or so. They were very consistent after that.
On many braking systems with legacy designs, the electrical actuation is not mean to apply all the braking force. Instead, the force of the drum will move the shoes against a cam mechanism, and use the force of wheel rotation to help apply some of the braking force. In older designs, this only works in the forward direction, not backward. Not sure of the current electric brake designs, or whether they work bi-directionally.
__________________
2006 Jayco Seneca 34SS
2006 Jeep Wrangler Unlimited Rubicon Toad
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04-20-2017, 08:47 PM
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#14
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Junior Member
Join Date: Apr 2017
Location: Coosada
Posts: 18
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I do, but I'm new to electric trailer brakes. I sold an '05 12hw popup and bought an slx213qbw with electric brakes. I've only been on 2 trips with it, but I've started checking the settings and the gain before I leave home. I still get jerked around some but I think (I hope) its just experience.
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04-20-2017, 08:54 PM
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#15
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Senior Member
Join Date: Apr 2015
Location: Michigan
Posts: 2,650
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Quote:
Originally Posted by BandC
I do, but I'm new to electric trailer brakes. I sold an '05 12hw popup and bought an slx213qbw with electric brakes. I've only been on 2 trips with it, but I've started checking the settings and the gain before I leave home. I still get jerked around some but I think (I hope) its just experience.
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Which brake controller are you using.
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04-21-2017, 05:37 PM
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#16
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Junior Member
Join Date: Apr 2017
Location: Coosada
Posts: 18
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Quote:
Originally Posted by Sundancer330
Which brake controller are you using.
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A Tekonsha Primus iq. My popup had hydraulic surge brakes. Bought it from a Jayco dealer and when I needed to get work done on them they told me they didn't service surge brakes. We service what we sell didn't apply there.
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04-21-2017, 05:54 PM
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#17
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Senior Member
Join Date: Apr 2015
Location: Michigan
Posts: 2,650
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Quote:
Originally Posted by BandC
A Tekonsha Primus iq. My popup had hydraulic surge brakes. Bought it from a Jayco dealer and when I needed to get work done on them they told me they didn't service surge brakes. We service what we sell didn't apply there.
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It looks like all the Tekonsha controllers have the same basic setup, Boost and Power. If your trailer is jerking when braking set the Boost to 0 and adjust the Power until you get even braking, start at 6. I found the jerking comes from the Boost setting, I have my Boost off set at 0.
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04-21-2017, 06:56 PM
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#18
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Junior Member
Join Date: Apr 2017
Location: Coosada
Posts: 18
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Quote:
Originally Posted by Sundancer330
It looks like all the Tekonsha controllers have the same basic setup, Boost and Power. If your trailer is jerking when braking set the Boost to 0 and adjust the Power until you get even braking, start at 6. I found the jerking comes from the Boost setting, I have my Boost off set at 0.
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Thanks, I'll try that.
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04-21-2017, 07:19 PM
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#19
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Senior Member
Join Date: Apr 2016
Location: Weatherford
Posts: 505
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My lack of braking was solved by adjusting them. Now it's nice and smooth and the trailer brakes are doing their part. Working with a friend on his today and we came upon an idea for checking for bad seals. I used a bent piece of wire and poked it into the adjusting slot, making it go up around the seal area. On 3 it came back with brake dust on it. Sure enough, on one it came back greasy. Luckily the seal was failing but hadn't greased the brakes up yet... but it was getting there. Seals replaced and bearings repacked on all 4. Probably not an absolutely fail-safe way, but it worked this time. He (later over a beer) admitted that he hadn't done any bearing/brake maintenance in about 3 years... ...
__________________
Jack and Delores, Weatherford, Texas
2016 White Hawk 28DSBH TT, 2014 Ram 4X4 2500 CTD
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04-21-2017, 08:04 PM
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#20
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Senior Member
Join Date: Mar 2013
Location: Kansas City
Posts: 1,710
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I had very sensitive braking at low speeds (city driving) when I first installed the P3 and found the boost feature was the problem. My boost was at 1 initially but the manual says if the trailer is lighter then the truck, the boost should be off. I leave the boost off most of the time.
__________________
2018 28BHBE
2017 Ford F250 XLT, 6.2 gasser
2013 26BH (traded)
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