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Old 10-01-2009, 10:12 PM   #1
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4wd question

whats the do's and donts of engaging your 4wd? Can you engage 4 hi while moving, if so what speeds?

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Old 10-01-2009, 10:16 PM   #2
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my old truck said u could engage 4 hi as long as u were going under 55 mph, and 4 lo only in park. your owners manual should tell u what the safe speeds for engaging is

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Old 10-01-2009, 10:37 PM   #3
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I have checked the manual and it says pretty much nothing
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Old 10-01-2009, 10:40 PM   #4
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hmmm, interesting. well my old 4runner had this lil card on the back of the sun visor on the driver side, u might try looking there, just for kicks and giggles.
i think a general rule would be to only engage 4 lo when ur not moving, i guess 4 hi is fine if ur not going that fast. seems kinda odd its not really in the owners manual
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Old 10-01-2009, 10:44 PM   #5
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I think 4 hi is upto 25mph... and low is from a stop... Though on my old np242 it was upto 55mph...
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Old 10-01-2009, 10:56 PM   #6
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im just trying to figure it out with winter coming
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Old 10-01-2009, 10:58 PM   #7
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hell, u could always just play it safe and stick to 25 and under if u cant find a good answer.
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Old 10-02-2009, 01:25 AM   #8
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Yes you can engage 4hi while moving, but I doubt you will be going very fast when you really need it.
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Old 10-02-2009, 04:07 AM   #9
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My owner's manual says "to engage 4H, shift the transfer case lever from 2H to 4H while the vehicle is moving at any legal speed" and "to engage 4L, slow the vehicle to 2-3 mph. While the vehicle is coasting forward at 2-3 mph, shift the transmission to Neutral, then shift the transfer case lever to the right and pull firmly rearward to 4L" It says also: "CAUTION! Never attempt to engage Low range when vehicle is moving faster than 2-3 mph. ... Do not attempt to engage 4L when vehicle is stationary. Transfer case damage may result"

Mine is a 2000 TJ 4.0L, 5s manual. I hope it helped.
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Old 10-02-2009, 07:03 AM   #10
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that is interesting about 4L, i have always stopped put the tranny in neutral and then shifted to 4L. I will have to try it rolling next time and see if there is a difference.

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Old 10-02-2009, 08:10 AM   #11
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that is interesting about 4L, i have always stopped put the tranny in neutral and then shifted to 4L. I will have to try it rolling next time and see if there is a difference.

jw
same here, but after I lock it in, I back it up about a foot or two to make sure it locks in then proceed. Also do the same thing when taking it out of 4L to make sure it unlocks.
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Old 10-02-2009, 08:30 AM   #12
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I have an 06 TJ and my owners manual says 4lo 2-3 mph but says nothing about trying to do it stationary. When I use 4lo I usually can't go 2-3mph because I'm stuck in a mud hole and engaging 4lo stationary is the only way to get out. I guess if you are towing someone out then you could roll 2-3 mph but other than that 4lo is my get out of a mud hole free card.
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Old 10-02-2009, 09:26 AM   #13
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i always engage 4 hi while moving, put in neutral, engage and then back in gear. i never (except trying it on parking lot to make sure it was working..) used the 4 lo.

i'm wondering up to what speed the 4 hi can be used?
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Old 10-02-2009, 10:27 AM   #14
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Quote:
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i always engage 4 hi while moving, put in neutral, engage and then back in gear. i never (except trying it on parking lot to make sure it was working..) used the 4 lo.

i'm wondering up to what speed the 4 hi can be used?
4 high can be used at any speed... Well, it won't hurt the t-case anyway. Also, you can engage 4 high at any time by just putting it in 4x4, you don't have to stop, put it in neutral, or anything else special... That's the great thing about "shift-on-the-fly"!
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Old 10-02-2009, 10:40 AM   #15
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good to know! i wasnt sure thats why i played it safe.
i used to have a rodeo 4wd (auto) and all i had to do was pushing a button and 4wd engage, that was cool, i like to be in 4wd when its raining here, the road are so slipery.
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Old 10-02-2009, 10:59 AM   #16
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ok so let me get it straight... 4hi pretty much any reasonable speed, go into Neutral before engaging , put in 4hi and then back to gear, is it a must to be in neutral? And 4Lo I have always engaged while stopped,like someone said when ur screwed on a trail or something is this wrong?

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