"Grabby" brakes - Escape Trailer Owners Community

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Old 04-25-2018, 10:40 AM   #1
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"Grabby" brakes

I am pulling a 2011 17B with a 2015 Ford Explorer (5000 lb tow capacity). I bought a Tekonsha 90885 Prodigy P2 controller and during my last trip it felt like the brakes were grabbing or surging, especially at low speed. They never locked up - just didn't feel right. When I first installed the controller I pulled the trailer 250 miles to home with no problem. Then went on one short trip up the coast with no problem. Trailer stored indoors all winter.

I haven't pulled the wheels or done any other investigating....

Any suggestions are appreciated.
Thanks
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Old 04-25-2018, 10:42 AM   #2
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Have you tried adjusting the gain control a bit lower?
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Old 04-25-2018, 10:47 AM   #3
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Originally Posted by Sherm2954 View Post
I am pulling a 2011 17B with a 2015 Ford Explorer (5000 lb tow capacity). I bought a Tekonsha 90885 Prodigy P2 controller and during my last trip it felt like the brakes were grabbing or surging, especially at low speed. They never locked up - just didn't feel right. When I first installed the controller I pulled the trailer 250 miles to home with no problem. Then went on one short trip up the coast with no problem. Trailer stored indoors all winter.

I haven't pulled the wheels or done any other investigating....

Any suggestions are appreciated.
Thanks
Have the brakes been adjusted ? When the pads wear the distance between the pad and the the drum increases which counter to what you would think would happen can result in grabby or surging brakes.

Edit.
Also if this is the first you have used it this season the rust inside the brake drums offers a lot more friction.
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Old 04-25-2018, 10:52 AM   #4
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Turn off "Boost" on the P2 if it accidentally got turned on. ( see your P2 instructions ).
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Old 04-25-2018, 11:48 AM   #5
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Turn off "Boost" on the P2 if it accidentally got turned on. ( see your P2 instructions ).
I'll check that! Thanks for the suggestion.
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Old 04-25-2018, 11:49 AM   #6
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Originally Posted by wetzk View Post
Have the brakes been adjusted ? When the pads wear the distance between the pad and the the drum increases which counter to what you would think would happen can result in grabby or surging brakes.

Edit.
Also if this is the first you have used it this season the rust inside the brake drums offers a lot more friction.
Brakes were adjusted, inspected when I had the wheel bearings inspected and serviced before storing the trailer, so I think they're good to go.
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Old 04-25-2018, 11:50 AM   #7
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Originally Posted by CADreamin View Post
Have you tried adjusting the gain control a bit lower?
Yes. That was my first move - I have to check but I may have accidentally turned on "boost". When I get home I'll take a look. Thank you for the suggestion.
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Old 04-25-2018, 01:09 PM   #8
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May or may not be helpful, but this is a good primer on Dexter light-duty electric brakes. Has a troubleshooting section near the end. Good reading for anyone who wants to know a little more about what is helping stop the thousands of pounds behind them.

www.dexteraxle.com/docs/default-source/default-document-library/light-duty-electric-brakes.pdf?sfvrsn=2
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Old 04-25-2018, 01:28 PM   #9
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Originally Posted by rubicon327 View Post
May or may not be helpful, but this is a good primer on Dexter light-duty electric brakes. Has a troubleshooting section near the end. Good reading for anyone who wants to know a little more about what is helping stop the thousands of pounds behind them.

www.dexteraxle.com/docs/default-source/default-document-library/light-duty-electric-brakes.pdf?sfvrsn=2

excellent info. thank you!
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Old 04-25-2018, 02:41 PM   #10
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I can imagine how brakes “grab”
Can someone please describe how brakes “surge” and what that feels like.

Please and thanks
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