Disc Brakes Will Not Release On Boat Trailer
Question:
I tow a boat with a total load of 12000 -14000 pounds. The trailer has three axles with disc brakes. I have been towing this trailer using a Reese brake controller for about 12 years. The problem that I have always had is that once stopped, I have to wait for the brakes to turn loose before I can pull out. The Reese controller works fine for slowing and stopping, but it does not release quickly. I have rad all of the reviews on the P2, but found no mention of the controller either turning loose when the brake peddle is released or causing a drag after using brakes in heavy traffic. My tow vehicle is a 1998 Navigator.
asked by: Marshall H
Expert Reply:
There could be several things that may cause issues with the brakes. Since you stated that you have always had the problem with the brakes slow release, I think the issue may be the controller. You said you have disc brakes on your trailer. This would require you to have an electric over hydraulic brake controller installed with your system. Based on the age of the controller, I would think that it is not compatible with the hydraulic brake system on the trailer. The first thing I would recommend is to make sure you have the brake controller adjusted correctly. I have also linked you to a video that explains how to check the brake controller wiring.
If you choose to consider a new brake controller, I would recommend the Tekonsha Prodigy P2 Trailer Brake Controller, part # 90885. To install the P2, you would need to disconnect your old brake controller. You will need to connect the wires from the P2 to your vehicle, so you will have to cut the connector that plugged into your old controller and wire them to the new wires using butt connectors.
With disc brakes, they are on a hydraulic system, so you would need to make sure your lines are not damaged, crimped, or have air in the lines. If your actuator is located a distance of 20 feet or more from the axles, a larger brake line may be needed. The industry standard is 3/16 inch, but if needed, a 1/4 inch brake line is recommended.
Elevate the trailer so that the wheels are off the ground surface. Have someone activate the manual override switch on the brake controller while you are able to spin the wheels. When the override switch is activated, it should prevent the wheels from turning. When the switch is released, the wheels should turn freely. After checking the controller,
If you have determined there is no issue with the controller, you then need to check all of the connectors on the vehicle and the trailer for corrosion. This can cause a short inside the connector and cause issues. After you have checked the connectors, and find there is no problem, you should check the wiring on the trailer.
If you still find no issues with any of the components, I would suspect there is an issue with the brakes themselves. Inspect the rotors and calipers for any worn surfaces and replace as necessary.
Product Page this Question was Asked From
Tekonsha Prodigy P2 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LED Display
- Up to 360 Degrees
- Tekonsha
more information >
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