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Expert Answers about Jeep JK Wrangler


  • Brake Buddy Stealth Supplemental Braking System Breakaway Feature
  • In the event of a breakaway the Brake Buddy Stealth Supplemental Braking System - Proportional Item # HM39530 will automatically engage your vehicle's brakes to help you safely stop the motorhome and vehicle and pull over.
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  • How To Install Roadmaster 2nd Motorhome Kit RM-98850 In 2022 Mercedes-Benz Sprinter
  • I would be happy to help! What you will need to do to get the Roadmaster 2nd Motorhome Kit # RM-98850 installed in your 2022 Mercedes-Benz is first install the LED light in your Sprinter where ever you decide is the best location that is visible while driving, and is preferably in a section of the dash that can easily be removed so you can drill the hole without worrying about what is behind that area. The white wire from the LED will get connected to the white wire of the audio module,...
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  • Is Brake Lite Relay Needed When Installing Tow Bar Lighting in 2018 Jeep JK Wrangler
  • What braking system are you planning on using? If the system presses the brake pedal of the 2018 Jeep JK Wrangler like most do then yes you do need to use the # RM-88400. The reason for this is so that the stoplights of your Wrangler don't override the blinker circuits of the # RM-15267. I attached install videos for both kits in similar 2017 Jeep Wrangler Unlimiteds.
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  • Is a Battery Charger Needed with the Stay-in Play Duo Supplemental Braking System?
  • On your 2018 Jeep Wrangler, I am thrilled with the parts you ordered. The Mighty Cord Trailer Connector Adapter - 4-Way Flat to 6-Way Round - 12" Harness # A10-6034VP will give you the 12V charge line from your 7-way on your motorhome to give a maintenance charge to your Jeep battery. Although a charge line isn't required, the SMI Stay-IN-Play DUO Supplemental Braking System # SM99251 does use that vehicle battery, so I do recommend connecting it. You can simply connect the 12V wire of...
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  • Can Superchips Flashcal F5 Calibrator be Used on Two Different 2018 Jeep Wrangler Rubicons?
  • No, you cannot use the same Superchips Flashcal F5 Calibrator for Jeep Wrangler # SU3571 on both your 2018 Jeep Wrangler Rubicon and your wife's Wrangler. The Flashcal can only be used with a single vehicle at a time because the original tune is stored in the unit's memory.
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  • Where Is The Best Place To Tie The Roadmaster InvisiBrake Wiring Into The 4-Way Lighting Harness?
  • When installing the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 on your 2018 Jeep Wrangler Unlimited Rubicon Recon I find it easiest to run the wiring for the Wiring Harness # RM-945204-00 from the Invisibrake to the front 4-way connector from the Roadmaster Diode 7-Wire to 4-Wire Flexo-Coil Wiring Kit # RM-15247. This will be similar to how the wiring is connected in the installation video that I have linked below. I find it best to keep the connections in one location...
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  • How To Install The Brake Buddy Charge Line Wire When Using Magnetic Lights
  • To install the charge line kit # BB54FR included with your Brake Buddy Classic 3 Portable Supplemental Braking System # HM39494 while also using magnetic lights you would need to just run the wire to the front of your Wrangler and crimp on a bullet connector. You could then run the line from the motorhome side over to the vehicle and crimp a bullet connector onto it to connect the two wires together and charge the battery. I would pick up some Velcro straps from your local hardware store...
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  • Key Position When Flat Towing 2018 Jeep JK Wrangler
  • I looked though the online version of the owner's manual for your 2018 Jeep JK Wrangler and there isn't a clear indication as to whether or not the key should be left in the ignition while it's being flat towed. There is a detailed procedure for how to prepare the vehicle for recreational towing by shifting it into neutral starting on page 319 that you will need to follow. Typically when flat towing a vehicle the key is left in the ACC/ACCESSORY position so that the steering wheel does...
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  • What Should I Fill my Tow Vehicle's Tires to While Towing
  • If I am understanding you correctly, you are asking what the tire pressure should be on the tow vehicle while towing a 3,000 lb trailer, not the what the tire pressure should be on the trailer while hauling 3,000 lbs. If that is the case then there will be a sticker on the door lamb most likely which lists the cold fill ratings for both the front and rear tires. This is the figure you will need to use while towing assuming the gross trailer weight is under the towing capacity of the vehicle....
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  • How To Install Camco Gen-Turi RV Generator Exhaust System On Motorhome With Turn Down Exhaust
  • In order to install the Camco Gen-Turi RV Generator Exhaust System part # CAM44461 on a motorhome where the exhaust pipe is turned down towards the ground you'll need to cut that section of the exhaust pipe off. Once this is done, you can use the Camco Gen-Turi Replacement 30" EMT Straight Discharge Pipe part # CAM44802 to lengthen the connection if needed.
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  • Are Spacers Needed After Installing Front Mounted Hitch on 2018 Jeep JK Wrangler
  • The Curt Front Mount Trailer Hitch Receiver # C31433 has a weight of 24lbs. I reached out to my contacts at Curt and they advised me that when hitch to the 2018 Jeep JK Wrangler you should not expect any vehicle sag.
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  • How Does Westin MAX Bull Bar w/Winch Mounting Tray 46-43635-23635 Install on 2018 Jeep JK Wrangler
  • The instructions for the MAX winch tray part of # 46-43635-23635 are as follows (there is no drilling): 1. Remove all contents from box, verify all parts listed are present and free from damage. Carefully read and understand all instructions before attempting installation. 2. Starting at the front of the vehicle locate all fasteners attaching the front bumper to the frame. Remove the bumper and set aside. 3. With the bumper removed, remove the metal frame from inside the bumper, there...
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  • Brake-Lite Relay Install and Testing For 2018 Jeep Wrangler JK
  • Whenever you are testing for the cold side of the brake switch you'll want to use a volt meter like # PT89ZR rather than a standard test light, which I assume you are since you gave me the numbers of the read outs. The cold side of the brake switch should be a white wire with a tan/brown stripe. I suggest retesting that wire and making sure that you have a good connection. It should read no voltage with the brake pedal released. When the pedal is pressed you should get 12v (or very close)...
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