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Old 05-06-2017, 05:08 PM
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Tyre pressures (Towing)

Hi folks,

Just bought a caravan for my Jeep to pull along, she's already fitted with what I believe is the factory fitted tow bar and I'm running with 245 70 R 16 tyres on standard alloys, I've been right through the Haynes workshop manual also the owners handbook and taken a look at the info label on the door shut but cannot find anything that tells me what tyre pressures I should be running with under towing conditions, I always have 33 p.s.i. all round running solo but was wondering what, if anything, any of you guys do when towing? The caravan has a max permitted laden mass of 1500kg but mass in running order with no user payload is 1248kg, I guess we would be fairly close to the max figure when we get under way especially with my Wifes' gear on board! I've been on a few caravanning forums but opinions differ for example some say just a couple of p.s.i. extra in just the rear tyres, (Would this have a detrimental effect on the 4wd system?). I also have another question concerning towing to do with an auxiliary transmission oil cooler,(My Jeep doesn't have one!) but I think I ought to be posting that one in a different part of the forum? Year 2000 Jeep Grand Cherokee 4.0 petrol coupled to Quadra Trac II 4 speed auto with overdrive.
Thanks for any info or experiences any of you can provide!

Best wishes,


P.S. I think I should add that the max nose weight on the tow ball is 140kg but i'll probably be running with closer to 100kg, thank you.

2000 WJ Grand Cherokee Limited 4.0 petrol, only 70,000 Miles and counting!.....Got some catching up to do!
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