Question about 4WDemand

[silver4x419]

I was checking out Toyota's website and seen that you can get an Access Cab with 4WD with an Automatic Trans with a V6.

Does anyone know what 4WDemand is and how it works? Also, I was told there is a shifter inside the vehicle instead of the touch button on the dash.

Sorry for me posting this here, but Tundra Solutions gave me problems and I was not able to register the right way. I was just hoping some members who have 4WDemand on their older 4Runners woud be able to verifty some of this or tell me what is exatly up.

Thanks in advance.

 

[NoDak]

not exactly sure, but i think the 99-02 4runners had this option before i came on the tundra's. you could do a search in the forums about this.

 

[TranceKrayz]

i know that the previous generation 4runner has a shifter to select 4wd/2wd next the the transmission box. i think the 2nd gen. has it too.

 

[NoDak]

edited comments out as they where not related to original post. thai posted correct info.

 

[02sport]

my 94 truck has 4wdemand, basically a "shift on the fly" system, although its a part time system...transfer case has a shifter for 2hi, 4hi, and 4low.......

 

[Thai]

I believe that 4wDemand is a basic part-time 4wd system...same system as in Tacoma, Jeep Wrangler, etc.. This system is NOT the same as the 1999-up 4runners. Prior to 1999, however, 4runners did use this part-time 4wd system. In 1999, Toyota added the center differential to allow for owners to use 4wd on dry land without binding.

With 4wDemand, you canNOT use 4wd on dry land...it does not have a center differential. It only has the transfer case. You can ONLY use 4wd on slippery surfaces to avoid binding around corners.

You have three options with 4wDemand:

1. 2wd: to be used on dry land

2. 4-HI: to be used on slippery surfaces ONLY; when in this mode, your front and rear wheels are locked together (same effect as when you lock the center diff on the 4runner)...therefore, you do not want to make a turn on dry land when front and rear axles are locked together...drivetrain binding results.

3. 4-LO: again, ONLY on slippery surfaces; however, with 4-LOW, you have torque multiplication thru gearing...2.566 times the torque. Therefore, you use this in off-roading or unloading your boat at the pier. It should NOT be used in any other conditions, such as regular driving.

Again, 4wDemand has nothing to do with the current 4runner's 4wd system. 4wDemand is a basic part-time 4wd system. You canNOT run 4wd on dry land.

Hope this helps.

BTW, this thread will be going to OFF-TOPIC soon.

 

[silver4x419]

Sorry about that, not putting it in Off Topic Thai, I do appreciate all the help.

For the life of me I can not get a mental picture of where the shifter would be placed in a Tundra. Unless there are captions chairs with a center console and then there is a shifter there, up higher.

Basically what I am trying to do is get a mental picture of where the shifter is located in the Tundra and the space for the front driver/passenger vs. the center console on the 4th generation 4Runner.

I love the idea of saving a few grand and purchasing a V6 Access Cab Tundra, but I am not all hype with the 4WD System with being a shifter, plus not sure about the 3.4 V6. I have reason to suspect the Tundra will be getting the 4.0 V6, the same used on the 4Runner, which is an excellent engine from what I have experienced.

I do appreciate all the help everyone, it is quite hard to buy to fit a budget and to have what you want.

 

[Thai]

I believe that the 4wd shifter is on the floor in front of the console or seat.

The 3.4L V6 is an excellent durable engine...and well-proven thru-out the world. It is smooth and quiet. However, compared to the new 4runner V6, it is very under-powered. The new 4.0L V6 is noisier.

I am not sure if the current gen Tundra will be getting the new 4.0L V6. Toyota would have to make new engine mounts, etc.. I believe that most Tundras are sold with V8's anyway for towing and payload...so, there's not much push for Toyota to put in another V6, espeically when tow ratings are not gonna change much. My opinion, of course.

 

[.o2 Lost Hiker]

I have the .o2 4Runner SR5 and have the 4WD button on the 4WD shifter. I've used it on wet, icy, snowy roads and had good results, there is also the VSC Cancel button and I'm not really sure how that works. I've never driven in 4WD mode in dry roads, maybe wet rained on road yes.

 

[Thai]

Here is a thread to help understanding your '02 4runner's 4wd system:

http://www.toyota-4runner.org/showthread.php?s=&threadid=12

Hope this helps.