Newbie 4wheel drive question

zjkjmyway · **Posted:** Fri Oct 12, 2007 9:22 pm

I have a 07 with 2HI, 4HI, 4LO which I believe is the command track. My question is its 4HI part time, is it alright to drive any length of time in 4HI? I'm brand new to 4wheel drive so if it seems like a stupid question, well it probably is. Oh and of course its a Liberty Sport.

snowsport · **Joined:** Tue Oct 18, 2005 11:52 pm **Posts:** 1211

Welcome aboard. Don't worry about the questions you ask, just ask them.
4 HI is for situations where the tires may be allowed to slip, such as loose sand, gravel, icy roads, deep snow, etc. DO NOT use 4 HI where the tires may get good grip, such as dry pavement. (You won't need it there anyway).

zjkjmyway · **Posted:** Fri Oct 12, 2007 9:37 pm

Thanks, just when does the 4LO come into play?

snowsport · **Joined:** Tue Oct 18, 2005 11:52 pm **Posts:** 1211

4 LO is for slow speed travel over rough terrain.

I forgot to mention that 4 HI is useful for MUD, as long as you have the tires for it

jsc7002 · **Posted:** Fri Oct 12, 2007 10:29 pm

also dont go over 10 mph in 4LO 4 HI is for higher speeds also

Tokyojoe · **Posted:** Sat Oct 13, 2007 11:11 am

First, Read your owners manual.

Sounds like you have Command Trac.

You can go to 25 mph in 4 Low, but do that on trails only. 4 High should be used only on wet, loose, slippery surfaces. You should be able to go at any speed, but in those conditions, you would be a fool to go fast.

Check this Jeep page out for more info:

http://www.jeep.co.uk/jeep/page.aspx?ID=775,,,

zjkjmyway · **Posted:** Thu Oct 18, 2007 11:41 pm

OK, let me try to describe this. It was raining this morning when I was going to work I was in in 4hi and I stopped at the store. I had the jeep still in 4hi when I started it up and put it in reverse to back out and it felt like the front tires were trying to go over a bump, I was barely touching the gas but it did not want to move then i heard almost like a pop sound and it freed up moving backwards. Should I have had it in 2hi before I started it up and backed up? It ran fine afterwards, I just don't want to screw anything up. Any advice or thoughts of what happened would be appreciated.

BeepBeepJeepJeep · **Posted:** Tue Oct 23, 2007 11:42 pm

zjkjmyway wrote:

OK, let me try to describe this. It was raining this morning when I was going to work I was in in 4hi and I stopped at the store. I had the jeep still in 4hi when I started it up and put it in reverse to back out and it felt like the front tires were trying to go over a bump, I was barely touching the gas but it did not want to move then i heard almost like a pop sound and it freed up moving backwards. Should I have had it in 2hi before I started it up and backed up? It ran fine afterwards, I just don't want to screw anything up. Any advice or thoughts of what happened would be appreciated.

PART TIME 4WD IS NOT MEANT FOR USE IN THE RAIN. If you like your transfer case I don't recommend using 4WD in the rain. ever.

carroll952 · **Posted:** Tue Oct 23, 2007 11:57 pm

BeepBeepJeepJeep wrote:

PART TIME 4WD IS NOT MEANT FOR USE IN THE RAIN. If you like your transfer case I don't recommend using 4WD in the rain. ever.

Exactly what he said. Did the pop happen when your wheels were turned? (Most likely) When turning the wheels spin at different rates. When your Jeep is in 4hi part time, the front and rear drive shafts are spinning at the same rate. For the wheels to spin at different rates when you turn, the drive shafts need to as well. If they can't, something in the drive-line will bind creating the pop you heard. It can also break components of the drive-line.

BeepBeepJeepJeep · **Posted:** Wed Oct 24, 2007 9:34 am

carroll952 wrote:

BeepBeepJeepJeep wrote:

PART TIME 4WD IS NOT MEANT FOR USE IN THE RAIN. If you like your transfer case I don't recommend using 4WD in the rain. ever.

Exactly what he said. Did the pop happen when your wheels were turned? (Most likely) When turning the wheels spin at different rates. When your Jeep is in 4hi part time, the front and rear drive shafts are spinning at the same rate. For the wheels to spin at different rates when you turn, the drive shafts need to as well. If they can't, something in the drive-line will bind creating the pop you heard. It can also break components of the drive-line.

Yeah... The only thing on the driveline that can give without breaking is the CV joint on the front driveshaft or the CV joints for the front wheel drive. My guess is that's what the noise was.

ATXKJ · **Posted:** Wed Oct 24, 2007 9:48 am

zjkjmyway

you might consider getting a good tire that doesn't need 4 wheel drive in the rain - the stockers are terrible, a good AT - like a Revo or Destination AT, or a better quality Goodyear - like a Silent Armor.

There are a lot of good tires out there - but they don't come stock - the stock ones are optimized for fuel mileage tests.

If you do it while the stockers are fairly new some tire shops will even get you some trade in credit.

zjkjmyway · **Posted:** Wed Oct 24, 2007 11:33 pm

Well I am a newbie to 4wheel drive :oops:

I'll know not to do that again. I was backing out of a parking space with the wheels turned when the pop occurred, how would I know if I screwed anything up? And if 4wheel drive works like that how does 4wheel all the time work? I probably drove about 20 miles in 4hi that morning, it was raining pretty good. These questions might seem stupid to you but I'm just learning. Thanks for the answers and patience.

Guest · **Posted:** Thu Oct 25, 2007 2:53 pm

The rain sucked, didn't it zjkj?

Do you plan on taking your KJ off road ever? PM me if you're considering getting new rubber...the stock tires are AWFUL on anything but dry pavement...and they're not much good for that, either.

meh_kick · **Posted:** Thu Oct 25, 2007 5:33 pm

zjkjmyway wrote:

Thanks, just when does the 4LO come into play?

Join us on another LOST Midwest run and find out!!

Newbie 4wheel drive question

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