Shifting to 4 low - question?
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JK Newbie
Joined: Jan 2012
Posts: 8
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From: Boulder, co
Shifting to 4 low - question?
I have a 2010 JK unlimited rubicon and I am very happy with it but. I have a question. I watched the video from jeep that explains how to shift to 4 lo and that a little grinding is ok. They said you are supposed to do it while moving. When I try this I can not shift into lo rather transfer case shift will not move until I put the transmission into neutral. I have an automatic btw.. If I put it into neutral then I can go ahead and smoothly move to 4 lo. However I do not need to be moving to do this. Am I doing it wrong?
A related question though I have yet to have a need to engage the lockers - I have tried and all I see on the dash is blinking axle lock lights - shouldn't they just stay in. Yes I am in 4 lo when I try this.
Sorry for the silly questions folks.
A related question though I have yet to have a need to engage the lockers - I have tried and all I see on the dash is blinking axle lock lights - shouldn't they just stay in. Yes I am in 4 lo when I try this.
Sorry for the silly questions folks.
JK Enthusiast
Joined: Sep 2010
Posts: 239
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From: Cherry Point, NC
You have to be in nuetral and stopped not moving. They say to be moving but I have yet to see one that wont grind when trying this. Also after you engage your lockers you need to drive a little. Try driving forward for a little bit and then backing up. But if you drive forward for a little bit the light should turn solid. If after you drive it for a little bit and it still wont engage then it needs service and you have a problem. Has the gears been changed on this Jeep?
JK Super Freak
Joined: Jun 2011
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From: Elizabethtown, PA
Originally Posted by BadTrainDriver
First, about the lockers, once you push the button in 4 wheel low, it may take a few seconds or a few slow revolutions for them to engage. Only if the pins inside the diffs are lined up(more likely to not be lined up than lined up) will it lock up immediately.
Second, kind of like the lockers, the gears must be lined up to shift into 4 wheel low.
Yes, you need to be in neutral with the automatic, and yes, you should be moving at less than 3 MPH.
To be the smoothest, you should barely be moving...like 1 MPH...
If you're stopped, and the gears are lined up, you good to go...but if they are not, it won't go.
Now moving slowly...like 1 MPH in neutral, it will go in ALL THE TIME.
That is why they say to be moving.
Second, kind of like the lockers, the gears must be lined up to shift into 4 wheel low.
Yes, you need to be in neutral with the automatic, and yes, you should be moving at less than 3 MPH.
To be the smoothest, you should barely be moving...like 1 MPH...
If you're stopped, and the gears are lined up, you good to go...but if they are not, it won't go.
Now moving slowly...like 1 MPH in neutral, it will go in ALL THE TIME.
That is why they say to be moving.
JK Enthusiast
Joined: Mar 2011
Posts: 302
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From: Allen, TX
Auto here... Yes, slightest roll goes without grinding. All can be done in the space of my super-short urban driveway. In D (transfer case in 4H) let off the brake a little and immediately put it back in N then shift to 4L while barely moving.
JK Enthusiast
Joined: Aug 2011
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From: Bayville,NJ
I do it the same way without any grinding at all
JK Enthusiast
Joined: Mar 2011
Posts: 302
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From: Allen, TX
Originally Posted by Bucko
While in drive??? You have success with this?
I've never tried that... successfully
JK Super Freak
Joined: Jun 2011
Posts: 1,206
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From: Elizabethtown, PA
Originally Posted by Bucko
While in drive??? You have success with this?
I've never tried that... successfully
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JK Super Freak
Joined: Oct 2010
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From: MD
Originally Posted by Xman4602
Oops didn't read all the way through before I commented. My bad.
JK Enthusiast
Joined: Oct 2011
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From: palmer,ak
Originally Posted by EzK
I don't have an auto but why couldn't you shift into 4low while in drive if you are on the brake and going very slow?