4X4 LOW Question - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 18 (permalink) Old 12-06-2007, 08:02 AM Thread Starter
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4X4 LOW Question

Hello everyone i have a quick question. Last night we got a few inches of snow here so i decided to test out the 4 Low for the first time in the commander. I just barely hit 5,000 miles this month. Well prior to doing this i had read the owners manual which stated that when putting the vehicle in LOW you need to place the commander in neutral while going 0-3 miles per hour (rolling) ????? Out of all the 4X4's i have ever owned i have never heard of this. Well anyways i did exactly what it said and when i do it it makes a clunking noise when it engages. So i tried it the way i have always known which is just to come to a complete stop, shift to neutral and then engage the 4 LOW. Well that worked perfect with no problems. So is there something wrong with my commander?

Next question is i noticed when im in 4 Low the vehicle shifts gears really hard. I never went over 15 mph in low. Is this normal? Thank you!

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post #2 of 18 (permalink) Old 12-06-2007, 08:37 AM
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The shift into neutral method will usually work except that sometimes you might get a "CHECK SHIFT PROCEDURE" message on the EVIC if the gears aren't align correctly.

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post #3 of 18 (permalink) Old 12-06-2007, 10:12 AM
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That all sounds normal to me. You can shift ether way, but if you are stopped there is a chance that the 4lo will not engage. (I have never had this happen to me yet)

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post #4 of 18 (permalink) Old 12-06-2007, 11:56 AM Thread Starter
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I appreciate it guys, this whole full time 4 wheel drive is new to me. I'm used to 4X4 trucks were you just push a button to activate the 4WD.

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post #5 of 18 (permalink) Old 12-06-2007, 12:03 PM
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I always go to full stop to go to 4LOW.

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post #6 of 18 (permalink) Old 12-06-2007, 12:52 PM
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i come to a full stop. when i did the rolling thing in neutral it made a grinding sound. it just makes a little popping sound when i put it in low at a stop.
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post #7 of 18 (permalink) Old 12-06-2007, 03:49 PM
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Why would you need 4 low in the snow? That's usually a job for 4 HIGH, or the Full time 4x4. The commander's do all that automagically. It was always my understanding that 4 LOW is really more for really deep mud, or serious off roading <shrug>.
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post #8 of 18 (permalink) Old 12-06-2007, 04:24 PM
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NO you do not have something wrong with your JK.

It actually makes more sense to be moving while engaging your transfer case and front axle. They both consist of gears and moving parts, it is rather difficult to be sitting still and make the gears line up at their specified locations for the four wheel drive low to become active.

The reason for the hard shift when set in 4lo is because you are using a different gear of your TC. These are all normal functions of a vehicle that is equipped with 4lo range TC.

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post #9 of 18 (permalink) Old 12-06-2007, 04:51 PM Thread Starter
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Quote:
Originally Posted by stratamet
Why would you need 4 low in the snow? That's usually a job for 4 HIGH, or the Full time 4x4. The commander's do all that automagically. It was always my understanding that 4 LOW is really more for really deep mud, or serious off roading <shrug>.
I was just testing out the 4 LOW since i just bought the commander a few months ago and it had never been engaged yet. I really dont plan on off roading anytime soon so i figured snow would work perfect to test it out. I do realize that Full Time 4X4 is perfect for everyday driving for the snow!

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post #10 of 18 (permalink) Old 12-06-2007, 04:53 PM Thread Starter
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Quote:
Originally Posted by 19JEEP86
NO you do not have something wrong with your JK.

It actually makes more sense to be moving while engaging your transfer case and front axle. They both consist of gears and moving parts, it is rather difficult to be sitting still and make the gears line up at their specified locations for the four wheel drive low to become active.

The reason for the hard shift when set in 4lo is because you are using a different gear of your TC. These are all normal functions of a vehicle that is equipped with 4lo range TC.
I assume you meant to say XK? Every other 4x4 i have owned stated to come to a complete stop and shift to neutral then engage the 4 Low so thats why i was confused because this is the first time i heard that you need to do it from a 0-3 mph roll in neutral. Anyways the 4x4 works great and i appreciate all off the responces!

2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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