***New 2010 LIMITED
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If your getting a limited, you are getting a different 4 wd system then the SR5. Simply, you will recieve a full time 4wd system, with a locking differntial. This is how it works. During normal driving, you will be in 2wheel dirive. If the computer on your vehicle senses that any of the rear wheels are slipping, automatically, the computer will place power to your front wheels. The power split will be 40/60, 40% to the front, 60% to the rear. Once the computer sense no more slippage, (and I do not know the time involved), it will go back to two wheel drive, automatically. Now, to your exact question. The only time you would use 4 wheel drive high, or low, is when you know you are going to have a good chance of loosing traction. Snow covered roads, or taking your vehicle off road. Check you manual to see at what speed you can switch (while moving) into 4 high. (You should never go into 4 low while moving). The SR5 can be placed into 4h up to 50 Mph, not sure about the Limited. 4 low should only be used in a very rough, steep terrian. It will be like driving in 1st gear. Very slow, but a lot of torque is transferred to all wheels. When you lock the transfer case/ transmission into either 4 h or 4 low, power is distrubted to the wheels at a 50/50 split. Go out and play with it, I think you will be impressed! Welcome to the wonderful world of 4 wheeling!
fxoffroad
New member
I hope Harper reads this... this is new to me... Jtraskell writes the Limited will be in "2wd" until you need 4wd on the Limited??? I just talked to my Lexus Service Manager and was talking about my upcoming 4Runner purchase... he said he wished he had the manual shifter, because the Limited system is always operating in 4wd... what's the reality?
I know my 4th gen 2008 limited is always in 4wd. You run in Hi range all the time. If you need more power/grunt you can switch into the low range..have to be stopped and in neutral to switch into low range though and I believe need to be stopped to switch back into high range. Can lock and unlock differential in either low or high range though while moving...
I would be surprised if the full time 4wd on the 5th gen is any different than this...
I just leave er in 4wd HI unlocked all the time anyway...good the kit is there in case you get stuck or need to the low range to haul a boat up a ramp etc. or something though...
Cheers
B'klyn_Mike
New member
When I had my Jeep Grand Cherokees (I know, Jeep) I always got them with the Select Trak option...I could drive in 2WD, or put them in PART TIME 4WD and it would work as was described above. When it got really bad I could put it into 4WD Hi or 4WD Lo as needed. Now if the 4Runner's worked that way it would be great! :bravo:
Mike :artist2:
You are correct, I was wrong. I was thinking of a different system. So many systems, so little memory! My apologizes. Here is the straight scoop. In H4Free, you ARE in constant 4 wheel drive, 40/60 as mentioned above. When cornering or under acceleration, or should the FRONT wheels spin, the torque split shifts to 30/70 (F.R.). Should the rear wheels slip, the torque split shifts to 53/47 (F.R.).
When everything else I said about H4 Locked, or L4 Locked, is correct.
Again, many apologizes.
Really good description about how 4WD works...
harper7
Senior Member
These always turn into disagreements!!!:shrug:
I think Uneek and Thai are known experts in this area and who I look to for answers.I've been schooled !!I'm just the mechanic and driver. I personally bought the Limited because of the full time 4 wheel drive with Torsen and I believe it's the best system going for traction all the time!
I originally had a TE on order and was quite dissapointed when I found out they cut the Torsen from it.The 2009 Trail Edition had it.By the way I do have my Flame Suit on!:flamethrwoer2:
Except....That's not quite how the Limited 4WD works. It is a full time 4 wheel drive system with a Torsen Type III center locking differential.Research and read how the Torsen works and why it is desireable, AND it was in ALL 4th Gen 4runner 4x4's and was cut from the budget on the 2010 SR5 and TE 4X4's. SR5's and TE do NOT have a center differential they have a old school transfer case.Still works great for what it's for.....offroading and snow/ice covered roads.Here is a good post on the subject .http://www.toyota-4runner.org/5th-gen-t4rs-its-finally-here/58477-okay-use-4wd-hi-dry-pavement.html
And this for the Torsen read .....
http://www.torsen.com/files/Torsen Traction Differential Technical Sheet.pdf
I think Uneek and Thai are known experts in this area and who I look to for answers.I've been schooled !!I'm just the mechanic and driver. I personally bought the Limited because of the full time 4 wheel drive with Torsen and I believe it's the best system going for traction all the time!
I originally had a TE on order and was quite dissapointed when I found out they cut the Torsen from it.The 2009 Trail Edition had it.By the way I do have my Flame Suit on!:flamethrwoer2:
Except....That's not quite how the Limited 4WD works. It is a full time 4 wheel drive system with a Torsen Type III center locking differential.Research and read how the Torsen works and why it is desireable, AND it was in ALL 4th Gen 4runner 4x4's and was cut from the budget on the 2010 SR5 and TE 4X4's. SR5's and TE do NOT have a center differential they have a old school transfer case.Still works great for what it's for.....offroading and snow/ice covered roads.Here is a good post on the subject .http://www.toyota-4runner.org/5th-gen-t4rs-its-finally-here/58477-okay-use-4wd-hi-dry-pavement.html
And this for the Torsen read .....
http://www.torsen.com/files/Torsen Traction Differential Technical Sheet.pdf
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Harper, if you were referring to my write up, I did correct it in the post right above PTY507 comment about my original wite up. Now, if you are referring to my corrected write up, the information came straight from Toyota's product reference guide. This document is provided to the dealers so they can become familar with what they are selling. Of course nobody but the customers, if they can get a copy, ever reads it!
harper7
Senior Member
Oh No , I saw that you corrected it and wasn't quoting you.
T4Fun
Banned
Now i am more confused. There is a 200+ page forum on edmunds regarding 4WD systems in toys. I have no time or patience to read that long of a forum.
Toyota 4WD systems explained - CarSpace Automotive Forums
I was not aware that the 4R limited has an "intelligent" 4wd that actively controls torque between front and rear (H4F). IF thats the case the H4L and L4L make sense to me, locking the torque at exactly 50:50.
I was also told that this TORSEN differential was LEFT OUT on the new 4R including limited. So which is it folks. Lots and lots of info on this and disagreements.
who has a link on explaining the 4wd system on LIMITED/Sr5/TE ?
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JB.
New member
To get you started and put your mind at ease, the first thing to realize is that since you're getting the Limited which has full-time 4WD, you'll likely have very little need for the other two drive options. Now you can relax and take your time absorbing what the other options mean.
So, you've got 3 drive options -- 2 in hi range, 1 in lo range
Hi range
1. H4F- Full time 4WD (default)
2. H4L- Still 4WD but the center differential is locked.
Now it's not called full-time 4WD anymore because you're not supposed to use it all the time. On the SR5 and Trail this state is called part-time 4WD (on those models, it's the only 4WD hi option). It can present problems with tight turns on pavement. Best to use on surfaces more slippery than dry pavement. You'd use this only if you needed some extra 4WD capability -- really deep snow, etc.
Lo range
1. L4L- 4WD again, center diff is locked. Your tranmission still shifts through the gears (probably only thru 4th), but each one is much lower than before. You'd need this mostly for speed control on say a steep off-pavement hill -- up or down, or for slow speed over big rocks. Also, if the neighbor asks you to pull a stump from his front yard, this would be the drive option to use.
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Actually, the Limited's 4WD system is more sophisticated. It is fulltime 4WD, with a limited slip center differential that is lockable. When the center diff is locked, it behaves just like a part-time 4WD in 4WD high. It also has a low-range.
In the 5th Gen, the SR5 and TE do not have the Torsen center diff, but are instead part-time systems. The Limited has the Torsen.
In the 4th Gen, they all had the Torsen center diff, but the V6 had an extra 2WD mode.
offshorebear
New member
Hi range / low range has nothing to do with traction. It just reduces the gearing to give you tons more torque and engine braking.
It is only useful at very low speeds. It's mostly just for offroad situations. Going down hill you use it for engine braking, or crawling over rocks you use it for the increased torque.
If your just driving on the street you won't need it, but it is a good idea to know how and when to use it just incase. You also should use it every so often in your driveway or at a parking lot just to keep the linkages lubed and free.
It is only useful at very low speeds. It's mostly just for offroad situations. Going down hill you use it for engine braking, or crawling over rocks you use it for the increased torque.
If your just driving on the street you won't need it, but it is a good idea to know how and when to use it just incase. You also should use it every so often in your driveway or at a parking lot just to keep the linkages lubed and free.
Thanks all. I'm planning to get one in a week or so. Just waiting to find out what the march incentives are...and to tell u the truth, I'm 18 and this will be my first car. My older brother is actually buying it as his 2nd car but I'll be doing most of the driving.
He was planning to get a German sports car,bmw/audi, but I convinced to get a reliable 4runner.
If everything stays on course, a silver limited should be in our driveway by mid March.:hungry:
He was planning to get a German sports car,bmw/audi, but I convinced to get a reliable 4runner.
If everything stays on course, a silver limited should be in our driveway by mid March.:hungry:
Uneek
Super Moderator
The 4th gen V6 is like that. :bluejump:
