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Old 04-12-2014, 07:24 PM   #141
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An isolator automatically disconnects the 12 volts of the TV from the trailer even if the power cord is left connected. That keeps any possibility of running down the TV battery when using the Airstream. They are not really necessary in my opinion, just pull the umbilical cord when you stop overnight but do not unhitch.

They have a diode in them which also reduces the already poor charging characteristics of the TV to trailer, so that is another disadvantage. They work well on motorhomes but are not so useful on TV's and trailer combos.

In addition, some TV manufactures already include a charge disconnect relay in the charge line to the umbilical plug. I don't think that Jeep does, at least it does not on my 2012 Grand Cherokee.
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Old 04-12-2014, 07:51 PM   #142
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OK. No isolator so it is possible to discharge the Jeep battery via the Airstream's electrical needs. How about the reverse? Am I charging the Jeep batteries via the Airstream's solar system when it is connected via the umbilical cord? Jim
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Old 04-12-2014, 10:01 PM   #143
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OK. No isolator so it is possible to discharge the Jeep battery via the Airstream's electrical needs. How about the reverse? Am I charging the Jeep batteries via the Airstream's solar system when it is connected via the umbilical cord? Jim
Yes, to the slight extent that the solar will get to the TV battery. The run is long, and the wire and plug and cord socket resistance will limit the amount going that way, but some will.
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Old 04-12-2014, 11:21 PM   #144
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That REALLY looks good!
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Old 04-13-2014, 09:10 PM   #145
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Hey Jim Flower, How does the GC tow the 30?

I am worried about putting my 25 on the GC because the tow rating is 7400 and the trailer loaded is 7300 with an 800 hitch.
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Old 04-14-2014, 09:23 AM   #146
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I towed a 25 Safari 350,000k with various GCs with no negative performance issues. I used a Reese Dual Cam hitch which I found to be excellent. I towed the 30 Signature 50,000 k with my 2008 GC Diesel and again, no negative performance issues. I used a Hensley. I have not had enough experience with the 2014 GC Diesel (150k) with the Hensley. My initial reaction is "wow! This is really excellent. Better than the previous Jeep". I am going to put 4500 k on it next week so I will have a little more experience to report on. L
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Old 04-14-2014, 09:26 AM   #147
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Fingers too big for my iPhone. L was a mistake. Jim
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Old 04-14-2014, 09:33 AM   #148
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That's a lot of miles. I'm surprised that you tow your 30 that much. A lot of people just park them and move maybe twice a year.
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Old 04-14-2014, 09:56 AM   #149
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Airstreams are made to roll. Jim
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Old 04-14-2014, 12:38 PM   #150
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Yes, to the slight extent that the solar will get to the TV battery. The run is long, and the wire and plug and cord socket resistance will limit the amount going that way, but some will.

Than you for this. You have been not only informative on this issue but also on several of my former queries regarding issues related to electricity. It is appreciated very much. Jim
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Old 04-26-2014, 07:48 AM   #151
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We did it! We finally towed (for the first time) to our first camp of the season. The JGC Diesel pulled her quite well. Full disclosure: We only towed about 40 miles. Baby steps for us newbies. Follow up to the brake controller and isolator -- we had our Jeep dealer install them. Not quite ready to try those things ourselves yet. But we'll get there. Especially with all the wonderful help and advice from everyone on this thread.

We had no problems towing to or from the CG. She was an easy tow, and if I didn't see her in my mirror, I would have forgotten she was back there. A huge thank you to everyone for all the input on this thread. You all helped us a great deal when making our decision to buy the Jeep. We are very pleased with our decision.

Many thanks!

David
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Old 04-26-2014, 08:39 AM   #152
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Your photo is like my old rig. 2012 GC forest green & 2011 20 Safari that just got sold yesterday. The new rig is 2014 GC diesel and 2013 25 foot international
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Old 04-26-2014, 07:24 PM   #153
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My trip to Fort Lauderdale (5800 K) in my new Diesel GC Overland towing the 2012 30' Airstream was mostly uneventiful. The Diesel performed flawlessly and I now understand why Chrysler is going to have it available in a Ram truck. The Airstream had its normal load of my wife's shoes and was full of water and propane so it weighed about 7600 lbs. The highest oil temp (125 F) and transmission temp (90 F) was achieved going north up into Virginia on I 77 at 105 K/hr in 6th gear. I never touched the paddle shifters since the 8 speed transmission needed no encouragement to work perfectly. I did not even take it off cruise control. The water temp was slightly higher than normal. The Jeep was very quiet and smooth, and maintained directional stability with no additional effort on my part. The hook up procedure was also painless. I turned off the air suspension and adjusted the weight distribution to maintain the unloaded Delta at the wheel wells. That's it and the settings on the Hensley were identical to my previous 2008 Jeep GC Diesel. This Jeep is better. Each one has been better than the previous one, and my sons are really happy with my previous ones. Keep your eyes peeled on 95 for a 2003 Jeep and a 20' Globetrotter heading north. Now the eventful part and it is not a Jeep thing but an Airstream thing. The water heater has now had its third failure, two of which are related to really sloppy installation techniques by the factory as in cross threaded fittings on the flex by pass hose, and flattened threads on the short radius brass 90 fitting on the hot water outlet nozzle. Both situations led to nasty leaks into the interior and should have been easily caught by QC. Jim
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Old 04-28-2014, 05:40 PM   #154
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