Troubleshooting Weak Trailer Brakes on a Toy Hauler Even After New Axles
Question:
I have a 44foot triple axel TH I bought new, the brakes never grabbed like my previous Toy Hauler did. My friend has the same unit and his brakes grab much harder, actually lock up at low speeds. I recently had it in the shop they told me the 7ooo# Lippert axels were too small, so we installed three 8000# Dexters / Same result. I hooked up to my friends toy hauler, he still has the Lippert axels I was able to lock up the brakes on 5 Gain his trailer stops way better. When I set my gain to 10 my trailer still rolls for awhile, I do have brakes but they are weak, all test show IBC in the truck working well 20 Amps out / 14.6 V when set on 10 gain. Any Ideas maybe a ground issue.. I do not get any codes on the trucks display. Thank You
asked by: Doug E
Helpful Expert Reply:
This could be a magnet wiring problem. It is unlikely that the magnets are bad on new assemblies, but if the wiring is not properly connected, it could cause problems. Check to see that the magnets are properly grounded to a clean, bare metal surface free of corrosion. A bad ground would not allow the circuit to be complete and lead to the brakes not performing like they should. You can also try running all of the brake grounds back to the main ground of the trailer.
The new brake assemblies may also not be adjusted properly. You will want to have the adjustment screw tightened to the point where the wheel locks up and then back it off 10 clicks. Check out the video I attached at the 4:25 mark.
Product Page this Question was Asked From
Continue Researching
- Shop: Lippert Replacement Standard Bearing Block Kit for RV In-Wall Slide-Out
- Shop: Replacement Lippert Hex Gear for Schwintek RV Slide-Outs - 1" Hex Bore - 16 Teeth - Qty 1
- Q&A: Weak Voltage At Brake Output Circuit On 7-Way Plug
- Q&A: Troubleshooting No Power at 12 Volt Pin on 7-Way for 2014 Ram 1500
- Search Results: dometic control board
- Shop: Suspension Enhancement
- Q&A: Testing Electric Trailer Brakes Using Direct Battery Power
- Q&A: Testing Electric Brakes on Trailer without Connecting to Tow Vehicle
- Search Results: 12 volt wire connectors
- Shop: SumoSprings Rebel Custom Helper Springs - 2 Piece - Rear Axle
- Q&A: Where are the Ground Wires Located on Electric Trailer Brakes
- Q&A: Problem with Adjusting Lippert Forward Self Adjusting Brakes
- Q&A: Disc Brake Kit Recommendation for Lippert 7k Axles
- Video: Review of Lippert Trailer Brakes - Electric Drum Brakes - LC66WD
- Article: How to Adjust Your Trailer Brakes | The Ultimate Guide
- Article: Testing Trailer Brake Magnets for Proper Function
- Shop: Hook Probe Circuit Tester
- Shop: Deka Jacketed 2 Wire, 10 Gauge, Brake Wire - per Foot
- Search Results: toy hauler bed
- Shop: Air Lift LoadLifter 5000 Air Helper Springs - Rear Axle
- Shop: Lippert Electric Trailer Brakes - 10" - Left/Right Hand Assemblies - 4.4K Lippert Axles
- Video: Review of Air Lift Vehicle Suspension - Rear Axle Enhancement - AL88231
- Video: Air Lift LoadLifter 5000 Ultimate Rear Air Helper Springs with Internal Jounce Bumpers Review
- Shop: Trailer Wiring
- Video: Factory Vs Standard Duty Vs Heavy Duty Sumo Springs Comparison
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Hitch
- Video: Choosing the Right Trailer Wiring
- Search Results: air bags
- Search Results: trailer hitch