Trailer Brakes Locking Up When Accelerating

Question

Question:

my truck is a 2007 youkon-xl and i hook-up to a 30 foot travel trailer and the brakes lock-up,when i put my foot on thegas pedal to move forward

asked by: Robin I

0

Expert Reply:

If your electric trailer brakes are locking up when you accelerate the brake controller may not be wired correctly so start be ensuring your controller's red wire is connected to the cold side of the stop light switch, or the wire that only shows power when you hit the brake pedal.

You can also try re-adjusting your trailer brakes manually with an adjustment spoon such as # W80630 to ensure they are properly adjusted. Also take a look at the connectors themselves and your brake wiring to make sure there are no crimped, broken or otherwise damaged wires.

expert reply by: Kyle S

0

Answer 1

It appears your trailer brakes are receiving full 12V power at these low speeds. Since they are completely locking up, it appears that you most likely have some corrosion or debris in your 7-way trailer connection. This can cause that 12V power…

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Answer 2

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 3

If your trailer's electric drum brakes are locking up even when the trailer is disconnected from the tow vehicle, then it sounds like the battery on the trailer is somehow finding a connection to the brake circuit. This could be from something as…

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Answer 4

You have the standard brake mounting flanges on your axle. If you want to get really technical, the bolt holes should actually measure about 1/16 larger than 2-3/4. That is the standard dimension for 3,500 lb axles. If you are looking for hydraulic…

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Answer 5

Your trailer might be possessed! If the trailer has a battery on it with a breakaway system then that is likely where the power was coming from. Even if there wasn't a breakaway system, if there is a battery on the trailer then it is possible…

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Answer 6

It's really going to come down to the size of the drums that you've got on those axles; there are exceptions to some rules but generally speaking 13 inch trailer wheels will work with 10 inch hub and drums, just not disc brakes. Your wheels…

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Answer 7

I can tell you how to determine the correct spindle based on your measurements, and what you will need is a digital caliper, though the first thing you need to know is the weight rating of your trailer axle. From there, what you need to do is measure…

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Answer 8

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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Answer 9

I do have a few easier options for you to determine the weight capacity of an axle other than using the bolt pattern or the number of lug nuts. The problem with using the bolt pattern to tell the axle capacity is that an axle may have the a bolt…

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Answer 10

The bolt pattern for a 5 bolt brake mounting flange, like #4-44-1 is 5 on 3-7/8 inches. What that means is it measures 3-7/8 inches from one corner to its diagonal counterpart. From hole to hole across the bottom is 3 inches and between the others is…

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Answer 11

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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Answer 12

If you are needing the hub and drum assembly then you will want to go with the Dexter Trailer Hub and Drum Assembly #8-201-5UC3-EZ but if you are just looking for an idler hub then you will want part #8-213-5UC1 instead. These come with the correct…

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