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Old 01-31-2013, 08:23 PM   #11
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Originally Posted by DualSport View Post
The first major uphill I encountered was Monarch Pass in CO and I thought our GMC 2500 (6L V8 gas) pulling a 15,000lb (10K dry) 5'er wasn't going to make it up. I was down to 1st gear, foot flat on the boards, and down to about 15mph and had visions of getting slower, stopping, and then rolling backwards - it was scary. As soon as we got to Gunnison I called the dealer who had just assured me that our truck was definitely good enough to pull that trailer (despite seemingly inadequate specs).

After a short discussion, he said I was waiting too long to change down a gear (3 spd auto + OD), often at less than 2000rpm. He said to keep the rpm over 3000 and not to worry if it occasionally went up to 4500-5000.

It made a huge difference and we've made numerous high altitude pass crossings with no problems since.

BTW, our last 2 trailers were 4200 and 7300lb (dry) and the same truck doesn't even know they are there when climbing.

Bob
This post really belongs in "Jokes and Humor". What are you going to do when something (like an accident or rock slide) causes them to halt traffic for a while, and you have to come to a complete stop?
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Old 01-31-2013, 08:52 PM   #12
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Good point-
A couple years ago, hauling equipment (about 15-16k) I got to the top of a hill and my trailer brakes locked up. Luckily it was in town and I was only going about 30mph.
Truck was sitting at just down hill of the top of the hill( front end downhill), I set e-brake and put truck in park, and since I was by myself, I hopped out to unplug the trailer plug. Well as soon as the plug was out the truck started rolling downhill. I ran after and hopped in hit the brakes and popped the tranny in gear- freaked me out- I think it rolled about 30' or so but it seemed much longer.
I got to a flat spot down the hill about 1/2 a mile and checked everything out, still don't know what happened because I pulled out the fuse a plugged back in and haven't had a problem since.
- just emphisizing that stuff happens, and usually at the worst time.
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Old 02-01-2013, 07:49 AM   #13
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Originally Posted by Ditchooker View Post
the beauty of the turbo is that it is not nearly as affected by the altitiude. however it will be working harder to make up for it, so if you need to stop after a hard pull, make sure to let it idle a few minutes to cool/slow down before shutting it off. I am not familiar enough with the ecoboost to know if it "turbo" brakes like the diesels do. the smaller displacement may not engine brake as well going down hill, something to consider since it is a beastly little motor going uphill.
thanks for the helpful info. The turbo in the ecoboost must have brakes. I pulled thru some small hills and it help brake for me. I know the mountains are a lot stepper then the hills I went thru.

Thanks,
John
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Old 02-01-2013, 07:54 AM   #14
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Be weather aware - rain at the base may mean snow at the pass. If you find you are going faster than comfortable in the gear chosen use snub braking (although described for air brakes the principals apply) to bring your speed down enough to switch to a lower gear. Know the signs of brake fade :Brake Fade What are the symptoms and what you can do to stop it StrikeEngine Other tips: Mountain Driving Tips For RVers: How To Drive Up Hills & Down Hills Without Burning Up Your Brakes - The Fun Times Guide to RVing
Thanks, I will read that sometime this weekend. I will be traveling the mountains in July.

Later,

john
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Old 02-01-2013, 11:33 AM   #15
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Originally Posted by BarryD0706 View Post
This post really belongs in "Jokes and Humor". What are you going to do when something (like an accident or rock slide) causes them to halt traffic for a while, and you have to come to a complete stop?
Are you serious?

Just because you downshift early and keep the revs high (my truck is gas, not diesel) to stop the engine labouring, doesn't mean you can't stop in an emergency. No matter what technique you use for driving uphill, everyone faces the same problem of restarting if an accident stops forward progress.

The dealer who gave my that advice is one of the leading authorities on safe towing practices and writes articles for major RV magazines. It's good advice and it works.

Bob
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