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Expert Answers about GMC Yukon


  • Should You Wait To Hook-Up Your WDS Before Or After Your Vehicle's Auto-Leveling Feature Is Complete
  • Yes, you're going to want to let the auto-leveling feature do its job first before hooking up your Equal-i-zer Weight Distribution System w/ 4-Point Sway Control # EQ37100ET. Once the auto-leveling is complete, you can proceed to hook up your system. I have attached some good information on weight distribution systems and how to set them up properly for you to check out as well.
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  • Function Of Trailer Vents On Enclosed Trailer
  • The vents we offer for an enclosed trailer like part # 9139 are designed to allow air into the trailer. None of the vents we offer create a pressurized condition in the trailer and none are equipped with an air filtration system to keep dust out. Some of the features on the vents like # 9139 allow you to adjust the amount of airflow in the trailer with a butterfly valve mounted on the inside of the vent which would be operated from inside the trailer. Other trailer vents, like part #...
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  • What is Needed to Install a Brake Controller in a 1999 GMC Yukon
  • There is not a place under your dash for you to plug in a brake controller. You will need to use a brake controller 7-Way installation kit, part # ETBC7, in your 1999 GMC Yukon to hard wire and install a brake controller. I attached installation instructions and an installation video for this product for you to check out also. If you do not have a 4-Way present at the rear of your vehicle, you will need one before you can install the # ETBC7. I would recommend a custom fit wiring # C55319....
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  • What is the Correct Air Psi for Air Shocks on a 1995 GMC Yukon
  • The correct psi rating for air shocks can vary from manufacturer to manufacturer. Some manufacturers have ratings as low as 50 psi to the max of 150 psi. I have no way of telling what the correct psi for your vehicle. You will have to contact the manufacturer of the air shock to obtain that information. The suspension enhancement systems we carry do not function like air shocks. These systems are not the soul suspension system like shocks, coil springs and leaf springs are on all vehicles....
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  • Circuit Breaker Size for Brake Controller Install Towing 2 and 3 Axle Trailers
  • If you planned to tow both a 2 axle and a 3 axle trailer you'd want to just use a 30 amp breaker like the part # PK54230. It wouldn't be necessary to go down to a lower rated breaker when towing the 2 axle trailer.
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  • Where Is The Trailer Brake Wiring Harness Located On A 2014 GMC Yukon
  • On your 2014 GMC Yukon the trailer brake wiring harness is located under the left side of the instrument panel to the left of the steering column. You will be able to idetifiy these wires by the white label, and there will be one Red/Black wire, one White wire, one Light Blue/White wire, one Dark Blue wire, and possibly one orange wire. If you are still needing a trailer brake controller I recommend the Tekonsha Prodigy P3 # 90195 as it offers great features like continuous diagnostic...
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  • Installing a Trailer Brake Controller on a 1999 GMC Yukon Denali
  • A simple plug-in location for a brake controller is not available on the 1999 GMC Yukon. You will need to hardwire in the controller. Since you have installed a 7-Way you will just need a brake controller installation kit like # 5506 for 6 to 8 brakes. Attach the black wire in the duplex cable to the back of the 7-Way to the 11:00 position. Attach the white wire in the cable to the back of the 7-Way in the 7:00 position. (If the trailer does not require 12-volt power then the black wire...
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  • Is the Glass Part Adjustable on Custom Towing Mirrors # KS80920 for a 2017 GMC Yukon
  • On the K-Source Snap & Zap Custom Towing Mirrors # KS80920 the glass part is adjustable but the housing that attaches to the stock mirror is fixed so maybe that is where the confusion comes from. The mirrors will be comparable to the ones you have now in terms of how much you will be able to see behind you. The difference though will be that the K-Source mirrors will be more stable.
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  • Why Does Weight Distribution Get Set Up After Allowing Auto Air Suspension to Settle
  • If there's such a thing as trailering hell you would not be sent there! So the reason it's recommended to let the suspension support settle before installing the spring bars of your system is so that your system is setup properly for the suspension as it will be supported when traveling. I wouldn't worry too much about not doing it by the book in the past but I'd strongly recommend you follow the procedure going forward. I also attached a page that has several weight distribution help...
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  • Location of Wires for Brake Controller Install on 2012 GMC Yukon Denali
  • The wires to install a brake controller like the Tekonsha Prodigy P2 # 90885 on your 2012 GMC Yukon Denali will be bundled up under the dash, on the left side of the brake pedal. These can be very difficult to find occasionally so you will probably have to dig in order to find them, but don't give up because they will be there. I have added a link to a video review of this controller being installed on a Yukon for you to take a look at, as well as a link to our selection of brake controllers...
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  • Can the Gen-Y Rebel Ball Mount w/ Stacked Receiver Be Used for Towing and Bike Rack
  • Yes, the Gen-Y Rebel Ball Mount w/ Stacked Receivers like part # GY72FR can be used for towing and hitch mounted accessories at the same time. The hitch accessory will need to be installed in the upper receiver and then you can use either of the bottom two receivers for the ball mount.
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  • Front Trailer Hitch for 2017 GMC Yukon
  • Though we have not had a chance to do a video showing the Curt Front Mount Hitch # C31073 being installed on a 2017 GMC Yukon, I have linked the installation instructions for you to take a look at. No drilling into your Yukon's frame is required to install this hitch and the only modification required is the removal or trimming of lower plastic air dam. You can carry a dirt bike with this hitch and a carrier such as the etrailer Motorcycle Carrier # e98873 so long as their combined weight...
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  • Front Hitch With More Ground Clearance For 2013 GMC Yukon
  • For your 2013 GMC Yukon, the Draw-Tite Front Mount Trailer Hitch Receiver # 65052 will give you about a 1/2 inch more ground clearance than the Curt Front Mount Trailer Hitch Receiver # C31012. Having said that, I do recommend the Curt hitch over the Draw-Tite. While it does require drilling into the frame, that does make the installation simpler as it you'll simply bolt the hitch up into those holes. The Draw-Tite partially attaches to the frame's splash shield, and it also requires taping...
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  • Tips For Removing Stuck Master Cylinder Cap On A Dexter T4750820 Actuator
  • Sometimes dust and dirt can get down in the threads of the master cylinder cap and they can get stuck on there real good. Unfortunately there is not really a trick to getting it off, other than using force. A little WD40 may help but I would use that as sparingly as possible. If you have no choice but to break the cap, it can be replaced with part # T4830601.
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  • How Does P3 Brake Controller Install in 2007 GMC Yukon
  • On your 2007 GMC Yukon there actually isn't a brake controller install port under the dash that a connector will be able to plug into. Instead there are four blunt cut wires by the emergency brake pedal that you will need to wire the controller directly to. If you check out the install video link I attached on this page you can see how we installed the P3 on a similar Yukon for you to check out.
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  • Installing P3 Brake Controller On 2014 GMC Yukon With No Plug-In Port
  • The 2014 GMC Yukon does not have an option for a plug-in adapter on a 2014 Yukon. They started offering the plug-in option on the 2015 models and newer. I have attached a helpful article that explains in detail how you wire the brake controller to your vehicle. There are wires under the left side of the instrument panel to the left of the steering column you will need to use for the brake controller. You can use a circuit tester like part # PTW2993 to test the wires for function when...
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  • Can 12 Volt Circuit on a 2012 GMC Yukon 7-Way be Used to Power Two 55-Watt Halogen Utility Lights
  • The amperage draw of 2 of the 55-Watt Halogen Flood Beam Lights, # QH16CTS, is 9 amps. This should not be a problem for a 12 volt circuit on a 7-Pole. You can check the owners manual and/or the legend on the lid of the power distribution box for the fuse that powers the 12 volt circuit to see what it is rated for to be sure. The amperage rating for a factory 7-Way might also be listed in the vehicle owners manual. If connected to the 12 volt circuit from a trailer connector, the lights...
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  • Installation Instructions for Front Mount Trailer Hitches for a 2004 GMC Yukon
  • If you are talking about Curt hitch # 31302, the instructions do not mention drilling at all. And the first step says that models with tow hooks must remove the factory bolt from the underside of the frame at the forward attachment point. I have linked the instructions to the right for reference.
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  • Correct Brake Settings for Primus Brake Controller With 2014 GMC Yukon
  • There is no universal setting for the Primus # TK90160 brake controller. What you'll need to do is adjust the power initially by driving on a flat surface at 25 mph and turning the power up if the brakes are not effective and down of the brakes lock up. After that, the boost setting is generally higher the more the trailer weighs compared to the vehicle, though it will depend on things such as the condition of your trailer brakes and the manner in which you drive.
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  • Installation of Curt TruTrack Weight Distribution System on 2017 GMC Yukon Denali with Autolevel
  • The Curt TruTrack Weight Distribution System w/ Sway Control # C17500 should be installed when you have your 2017 GMC Yukon Denali turned off. This will ensure you have the proper function and alignment. Then when your autoleveling system activates it will adjust properly for the best function. Do all of your measuring and adjusting with the system off. Then when the system activates the adjustments needed will be minor and you won't be overworking your system.
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