4x4 engaged.... Did I screw up?

ATRAC is only available when the center diff is locked and you are in 4lo.

Not to confuse further, but I'm pretty sure this is wrong. (Didn't want a noob reading this sometime in the future and believing it is all.


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Not to confuse further, but I'm pretty sure this is wrong. (Didn't want a noob reading this sometime in the future and believing it is all.


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How so? Spinning wheels is easy with the CDL locked in 4hi, not so much when in 4lo. ATRAC is most aggressive when in 4lo.
 
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How so? Spinning wheels is easy with the CDL locked in 4hi, not so much when in 4lo. ATRAC is most aggressive when in 4lo.

Was about to come on and edit the post and add that you probably meant VSC is not active with the center diff locked. VSC = Vehicle Stability Control which is the de-throttling you feel where the computer cuts the gas. ATRAC is always active until like 2500 or 3000 RPMs or something like that (whether in 4hi/4low, diff locked/unlocked.)

I'm pretty sure that's how it all boils down at least from my research/experience. Hopefully I'm not saying something wrong.


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Was about to come on and edit the post and add that you probably meant VSC is not active with the center diff locked. VSC = Vehicle Stability Control which is the de-throttling you feel where the computer cuts the gas. ATRAC is always active until like 2500 or 3000 RPMs or something like that (whether in 4hi/4low, diff locked/unlocked.)

I'm pretty sure that's how it all boils down at least from my research/experience. Hopefully I'm not saying something wrong.


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I agree with the VSC comment. ATRAC controls brakes to move the power from the spinning wheels to the wheels that have grip and is therefore only available when the diff is locked. VSC does not do anything like this - it simply cuts power.

I know I have redlined in 4hi with the center diff locked while messing around in the snow with no *****ing from the brakes. The same cannot be done in 4lo.
 
I agree with the VSC comment. ATRAC controls brakes to move the power from the spinning wheels to the wheels that have grip and is therefore only available when the diff is locked. VSC does not do anything like this - it simply cuts power.

I know I have redlined in 4hi with the center diff locked while messing around in the snow with no *****ing from the brakes. The same cannot be done in 4lo.

New name, same game...? I have a feeling I remember your posting style/etc... (Not sure on that though - just a theory...)

But why would you think ATRAC would only work in 4low? That is just not the case.


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With all the snow on Saturday, I had the truck in 4h. Then on Sunday with clear dry roads, I forgot to disengage it and did about 30 min of highway driving and then this morning I realized I was still in 4h.

Could this Have damaged anything in the 4 wheel drive system?


That reminds me, I need to turn the 4h on tomorrow when I go to work. :driving: Every 1st of the month I turn on the 4h when I drive to work, which is about 15 miles. I have been doing that for the past 6 years with no problem. Also the owners manual says to run the 4h once a month so it can lube up the 4wd. I have my iphone set every month to go off when I driving to work just in case so i dont forget. So don’t worry JT its all good.
 
4H is just fine anywhere as long as the center differential is not locked. If you JUST see the green 4WD icon, and NOT the one that's orange with an X on the drivetrain than you're fine. I periodically turn on my 4WD unlocked on dry roads to help with handling, and I always turn it on when the roads get wet, just so that I've got a sure footing if I need to step on it.

is this correct? it says you can switch into 4hi under 62mph, when you do the orange with x comes on, does that mean it's locked? I assumed it meant unlocked?

I've read the manual and I don't think I truly understood what it was talking about.
 
This thread is so full of FAIL! it is ridiculous! I would suggest everyone take everything they read in this thread with a grain of salt or dismiss it and get accurate info elsewhere, also it seems like clockwork is on a rampage of inaccuracies...:snacker:
 
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Hun?...Say What!?! Who's on first? This thread is making me freak out. You're talking about a 4th Gen right.....?? First post has a 4th Gen in the sig, and there is talk and comparission between the V6 and V8, so it must be about the 4th Gen.

The V8 and V6 4x4 systems are totally different. The V8 in normal driving behaves as an AWD car. It has the center differential, a Torsen center to be more specific. It will supply 60-70% to the rear and 30-40% to the front, all the time. It does not supply 100% to the rear and then send some to the front when needed. Front and rear are always powered, it only shifts power front-back as and when needed. The V8's only have 4Hi and 4Lo as drive options. In either of these modes the V8 4runner will operate in AWD. So you can essentially drive in 4lo while in AWD and not have driveline bind. The V8 gives the option to lock the center differential. Once this is locked, in either 4Hi or 4Lo then the V8 4runner is operating as a true 4x4 with 50% to the rear and 50% to front. In either model the differentials themselves do not have a limited slip anything..... but instead rely on Atrac when in 4x4 mode instead to do something similar.

The V6 4th Gen 4runner has the typical standard 4x4 system. It is 2hi, 4Hi, 4Lo. 2Hi for normal driving, 4hi maybe for driving on snow, light offroading gravel roads and sand and stuff, and 4lo for heavy offroading and rock crawling etc.... when lots of torque and control are needed. No AWD function or option. And it does not have a center differential. And if it does have an AWD mode and a center differential and the ability to lock it, then my whole 4th Gen 4Runner world as I know it has just been shattered.

All this to say that with the V6 4Runner, when in 4x4 mode, you shouldn't be driving it for long distances on dry pavement, and make a habbit of it. If you turn it on when there is snow, and forget to shift/turn it back to 2hi things should be ok, it is not the end of the world. But it is not intended to be left in that mode indefinitly.

To lube up components, turn on 4hi and find a fairly straight road or highway to do that. Not circles and zig zags in the parking lot. Which is a good intro to my next point.

If you want to test stuff out. Go to a parking lot, find a nice tight parking spot, and stick it in 4x4, if you can turn as easily as when you were in 2hi, you may have a center diff, if you feel like there is more pressure to turn and it feels like it is hoping, then you don't have a center diff.

Also, the center diff lock button is on the dashon the left of the steering colum. It has the icon of 4 wheels, axles and drive shaft, the front wheels are turned, with a little "X" over the diff as if to indicate no turning. No button, no center lock.
 
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Not quite accurate. I have a 2003 SR5 V6, and I have MultiMode 4WD. The only reason V6's have 2H is for gas savings. We have the exact same center diffs the V8's do.
 
is this correct? it says you can switch into 4hi under 62mph, when you do the orange with x comes on, does that mean it's locked? I assumed it meant unlocked?

I've read the manual and I don't think I truly understood what it was talking about.

The X only illuminates when the center diff is locked via the button next to the steering wheel. You are correct in stating that you can enter 4hi under 62mph. After you are successfully in 4hi there is no speed limit or terrain limitations.

This thread is so full of FAIL! it is ridiculous! I would suggest everyone take everything they read in this thread with a grain of salt or dismiss it and get accurate info elsewhere, also it seems like clockwork is on a rampage of inaccuracies...:snacker:

Oh really? It's funny because most people in this thread don't know how to operate their vehicle or when to use what feature. The only misleading thing I said was indicating that ATRAC is not engaged when the center diff is locked and in 4hi. It is far less aggressive than when it is in 4lo. Here although the software in LC's is better they're fundamentally the same: http://www.box.net/shared/93r775oxze34p180v6ma/1/92585543/787643565/1 and http://www.pressroom.com.au/pressroom/sample/presskits/99technologykit.htm#15

Next..mine's the red.

Hun?...Say What!?! Who's on first? This thread is making me freak out. You're talking about a 4th Gen right.....?? First post has a 4th Gen in the sig, and there is talk and comparission between the V6 and V8, so it must be about the 4th Gen.

The V8 and V6 4x4 systems are totally different. No they aren't. Their identical aside from the 2wd option on the V6. The V8 in normal driving behaves as an AWD car. It has the center differential, a Torsen center to be more specific. It will supply 60-70% to the rear and 30-40% to the front, all the time. It does not supply 100% to the rear and then send some to the front when needed. Front and rear are always powered, it only shifts power front-back as and when needed. Wrong again, it constantly shifts power throughout corners in addition to when it senses slip. The V8's only have 4Hi and 4Lo as drive options. In either of these modes the V8 4runner will operate in AWD. So you can essentially drive in 4lo while in AWD and not have driveline bind. The V8 gives the option to lock the center differential. Once this is locked, in either 4Hi or 4Lo then the V8 4runner is operating as a true 4x4 with 50% to the rear and 50% to front. In either model the differentials themselves do not have a limited slip anything..... but instead rely on Atrac when in 4x4 mode instead to do something similar.

The V6 4th Gen 4runner has the typical standard 4x4 system. It is 2hi, 4Hi, 4Lo. 2Hi for normal driving, 4hi maybe for driving on snow, light offroading gravel roads and sand and stuff, and 4lo for heavy offroading and rock crawling etc.... when lots of torque and control are needed. No AWD function or option. Wrong, 4hi is that AWD option and operates identical to that of the V8 And it does not have a center differential. Uhm, yes it does. And if it does have an AWD mode and a center differential and the ability to lock it, then my whole 4th Gen 4Runner world as I know it has just been shattered.

All this to say that with the V6 4Runner, when in 4x4 mode, you shouldn't be driving it for long distances on dry pavement, and make a habbit of it. If you turn it on when there is snow, and forget to shift/turn it back to 2hi things should be ok, it is not the end of the world. But it is not intended to be left in that mode indefinitly. Wrong, you can drive in 4hi 24/7 all year on all terrain with no malfunction or premature wear.

To lube up components, turn on 4hi and find a fairly straight road or highway to do that. Not circles and zig zags in the parking lot. Which is a good intro to my next point. Yet again - wrong. Driving in 4hi lubricates nothing. Utilizing the actuator to shift from 4hi to 2hi and back is the only item that benefits from such practice.

If you want to test stuff out. Go to a parking lot, find a nice tight parking spot, and stick it in 4x4, if you can turn as easily as when you were in 2hi, you may have a center diff, if you feel like there is more pressure to turn and it feels like it is hoping, then you don't have a center diff.

Also, the center diff lock button is on the dashon the left of the steering colum. It has the icon of 4 wheels, axles and drive shaft, the front wheels are turned, with a little "X" over the diff as if to indicate no turning. No button, no center lock.

Not quite accurate. I have a 2003 SR5 V6, and I have MultiMode 4WD. The only reason V6's have 2H is for gas savings. We have the exact same center diffs the V8's do.

Agreed

L24Runner. Dunno who eskimochaos is but if you don't like my up-front no BS attitude when all this information is available online and in your manual then that's your problem. The amount of incorrect information that is typed each day on this website is gross. Don't get me wrong - this website has great resources; however, it has lots of users who know nothing about their car.
 
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You're talking about a 4th Gen right.....??

The V8 and V6 4x4 systems are totally different.
No, they're not. For the 4th Gen, both the V8 and V6 have a Torsen center diff. The only difference is that the V6 is multi-mode, with a 2H option. There is no other difference for the 4th gen.

For the 5th Gen, the Limited has a Torsen center diff, but the SR5 and TE have a part-time system.

And if it does have an AWD mode and a center differential and the ability to lock it, then my whole 4th Gen 4Runner world as I know it has just been shattered.
It does have the same locking Torsen center diff as the V8.

All this to say that with the V6 4Runner, when in 4x4 mode, you shouldn't be driving it for long distances on dry pavement, and make a habbit of it.
Dude, you're wrong. The 4th Gen V6 has a Torsen center diff and you can drive it in 4WD on dry pavement all you want, provided the center diff is left unlocked. This is just the same as the 4th Gen V8.
 
Ok so I learned something here today. I have a 2003 V8 and not driven a V6, and had never come accross this realiztion until now. I did do a quick search right now, and sure enough both have the ability to do AWD or 4Hi, V8 permanent, and V6 selectable

I can take a schooling and you're no BS upfront style. But while this is more descriptive it is nit picking. mine: Front and rear are always powered, it only shifts power front-back as and when needed. yours: Wrong again, it constantly shifts power throughout corners in addition to when it senses slip.

for this, mine: To lube up components, turn on 4hi and find a fairly straight road or highway to do that. Not circles and zig zags in the parking lot. Which is a good intro to my next point. yours: Yet again - wrong. Driving in 4hi lubricates nothing. Utilizing the actuator to shift from 4hi to 2hi and back is the only item that benefits from such practice. Regardless, it is not a bad idea to do it once in a while, and I do believe the manual does say to exercise the 4x4 at least once a month I don't have the manual here with me.

And I do know plenty about my own truck and it's abilities, enough to have done plenty of trail repairs to get broken 4runners and FJ Cruisers home. Sorry :hello: I didn't know the V6 had a center diff. I off road my 2 4runners with an FJ cruiser club and the FJ is part time 4x4, no full time option, I guess I classified them into the same category but also because I truly believed that the V6 was a part time system. My bad. But I do understand the differences in the various 4x4 systems, diffs, lockers, atrac, transfercase etc...ooops. My info still stands correct for a part time 4x4 system, of which for the record it seems neither V6 or V8 are.

I can take what you spew out, :repuke: but how did this get to 4 pages without you or someone with 1st hand knowledge of the V6 not chime in and set the record straight on page one. All that was needed was, a comment indicating that regardless of V6 or V8 4hi is equivalent to AWD. It is only when the center diff lock is engaged does it become 4x4.

Thanks for setting the story straight...i'm still :jaw drop: over this one.
 
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All that was needed was, a comment indicating that regardless of V6 or V8 4hi is equivalent to AWD.

Sorry about that, but it starts to get old after the first 500 times or so and I was skimming too much to notice it was needed. I've posted this chart many times.

4Runnercenterdrivetrains4thgenfinal.jpg~original
 

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