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Old 01-27-2015, 10:12 AM
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Best snow driving techniques and modes

Hi all,
I'm in the NE and I just came in from playing around in 8-10" of fresh powder and some deep drifts with my 2014 Limited. Part of the test was checking out my new Wrangler Adventure tires. They were great, but I was trying different settings of the selec terrain button and I wanted to know what different combinations folks out there have found effective. In any event traction seemed to limited by ground clearance, i.e. once there snow was up against the undercarriage wheels started spinning. This has the quadratrac 2 I believe with the electronic brake type limited slip function. I think it's a poor substitute for a regular limited slip diff. I also turn the ESC off in deeper snow. Sometimes some wheel spin is helpful. I'm an older mechanic and I find all this electronic inclusion counterproductive. The snow mode seems to be good on a few inches and gets you started smoothly. However,it starts in 2nd gear and I didn't like feel of it starting on some hills with deeper snow. It just felt like not enough torque. All around I thought that auto mode with the ESC off felt the best to me. Still not as good as all mechanical connections and diffs. Low range wasn't that impressive for a lot of the same reasons.What have you folks found to be the most effective combination to get the best out of the electronic nannies? The video describing the selec terrain modes was helpful, but if anyone can elaborate,especially on snow mode, please do. Any information about the different components and functions is appreciated as well.
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Old 01-27-2015, 04:10 PM
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Re: Best snow driving techniques and modes

Haven't had any replies. Is there a better forum for this question(s)?
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Old 01-27-2015, 05:57 PM
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Re: Best snow driving techniques and modes

It's been unusually quiet around here lately.

I can't comment on the what works or doesn't but I would imagine that raising it up to create more clearance would be the best bet.

But at the end of the day it's not a hummer so you can only take it so far.

Sometimes we think were invincible. in these trucks.

Cheers
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Old 01-27-2015, 06:19 PM
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Re: Best snow driving techniques and modes

I like sport mode it cuts back on elec. nannies.gives the rear 80% and the front 20%.when i give it the gas it bites down and i'm flying up the drive!
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Old 01-27-2015, 06:24 PM
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Re: Best snow driving techniques and modes

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Originally Posted by Stevm65 View Post
Haven't had any replies. Is there a better forum for this question(s)?
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Hi Stevm65: No, you have come to the right place, more answers to your questions should show up. Last winter was my first with the GC, had to take the Michelin lattitudes off (terrible) & installed hankook I-pikes. Usually ran it in "snow mode" when a couple inches or more and sometimes turned ECO off. Gotta tell you, I went thru some unplowed roads & housing developments near by before the plow trucks got out, and 12 to 16 inches was no problem! Some homeowners that were outside were quite surprised. Was not a real wet snow and I even stopped a few times on the flat and some hills to see if I could get going again and it wasn't an issue unless the road was steeply crowned. After having SUVs, 4x4 trucks, and plowing driveways etc for 20 years I am impressed with the Jeep in snow. If you search You-Tube you will find a video of Grand Cherokee SRT, not sure of the year, going up an unplowed driveway that is un-believeable. Expect others to chime in! Dave
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Old 01-27-2015, 07:34 PM
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Re: Best snow driving techniques and modes

Thanks for all the input. It's very helpful. I took another ride later and performance was much better. I didn't realize that snow mode also made the power split to the axles 50/50. Maybe I underestimated it's value.
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Old 01-27-2015, 08:11 PM
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Re: Best snow driving techniques and modes

I've never tried snow mode, I leave mine in auto. Haven't had any problems with that.
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Old 01-27-2015, 09:02 PM
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Re: Best snow driving techniques and modes

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Originally Posted by Stevm65 View Post
However,it starts in 2nd gear and I didn't like feel of it starting on some hills with deeper snow.
The lower torque helps keep the wheels from breaking free and start slipping when pulling out from a stand still. It feels different, but it is the way to go.


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Old 01-27-2015, 09:11 PM
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Re: Best snow driving techniques and modes

You're right on. I'm familiar with the theory, but like you said it just feels strange. Now that I'm thinking about it,I can recall old drivers ed manuals that mentioned trying that with standard shift cars back in the day.
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Old 01-27-2015, 11:13 PM
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Re: Best snow driving techniques and modes

There are times that I miss the simplicity of my old 78 Bronco with the New Standard 4 speed manual and limited slip differential. It had 10-1/2 inches of ground clearance and I rarely got stuck with it (one time got stuck in mud where the frame was sitting on the ground and all four wheels were spinning. Hooked up a comealong to the front tow hooks and just put a bit of tension on it when the Bronco pulled itself out). I love the Jeep, but I don't fully trust all the electronics.
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Old 01-28-2015, 07:32 AM
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Re: Best snow driving techniques and modes

That's exactly what I was talking about. I had a '76 F-150 like that. High camper suspension. You had to yank the lever on the floor and get out and lock the hubs, but then it was unstoppable, no question. It's a trade off for convenience and economy I guess.
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Old 01-28-2015, 12:39 PM
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Re: Best snow driving techniques and modes

I have been driving Jeeps as well as other SUV's since the 80s. I love the electronics.
I take my overland wherever I want and it never let me down. Now my snow driving technique is simple - Don't laugh!
I go out of my drive way to the unplowed street and immediately put the pedal to the metal. This is my way of getting to feel the snow, as we all know every snow day is different. After the obligatory slide and swerve, I ease up and drive as usual. I found that the snow mode is great and works really nice even with the factory "off road" tires.
Apart from the snow mode, I also try to go into a think forward mental mode. if you don't need to panic break or turn, the Jeep will not slide.
Now I have driven some old school rigs on the snow, I also have a 1991 Jeep Waggy - no nannies not even ABS. But the electronics in the GC do most of the work for you, and make you look great driving.
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