1999 All Time 4WD question

[Gramatron]

Looking at a 99 and this is the interior shot... the back says All Time 4WD and I see the 4WD drive train. But, my confusion is that there's no transfer case shifter... It's just the auto shifter you see here. So, wth does this have?

I've read up some on the 4wd system in the 99-00 years, but most every thing i've read everyone mentions that transfer case shifter, 4Hi, 4Lo, etc. Which this doesn't have.

What am I looking at here? Sage advice for a noob... I'll keep searching, but if anyone has a link they could post up, help me navigate to some proper beta here, that'd be saweet!!

link for photo below, sorry, not sure how to place images in this post. forgive my noobness.

http://www.toyota-4runner.org/3rd-gen-t4rs/103567-painting-interior-pieces.html

gramatron

 

[02SE]

It sounds like someone slapped an "All Time 4WD" emblem on the back of a 2wd 4Runner.

 

[JayRolla]

Looking at a 99 and this is the interior shot... the back says All Time 4WD and I see the 4WD drive train. But, my confusion is that there's no transfer case shifter... It's just the auto shifter you see here. So, wth does this have?

I've read up some on the 4wd system in the 99-00 years, but most every thing i've read everyone mentions that transfer case shifter, 4Hi, 4Lo, etc. Which this doesn't have.

What am I looking at here? Sage advice for a noob... I'll keep searching, but if anyone has a link they could post up, help me navigate to some proper beta here, that'd be saweet!!

link for photo below, sorry, not sure how to place images in this post. forgive my noobness.

http://www.toyota-4runner.org/3rd-gen-t4rs/103567-painting-interior-pieces.html

gramatron

My buddy has a 99 and it has the shifter. You sure you looked under truck and saw the xcase along with cv shafts in the front? Im thinking its 2wd also.

 

[mxer]

The badge should say No 4WD.

He's trying to fool you and get a few more thousand since a 2wd 4runner is about as useful as a poopy flavored lollipop.

 

[JRZEE2000TR4LTD]

The badge should say No 4WD.

He's trying to fool you and get a few more thousand since a 2wd 4runner is about as useful as a poopy flavored lollipop.

LOL good one!

 

[Jdog]

I'm not going to lie I'm saying 2wd and someone with a poor sense of humor has put a 4wd emblem on it. And to copy from above floppy lollipop, need that t-case handle.

 

[mxer]

Ask the owner if he can engage the 4wd to test it out and see what he does.

 

[Gramatron]

thanks, i'll go back and take a closer look. my '88 is shot and well, i can't bring myself to drop a wad of cash into it and make it how i want.

paying to play sucks haha

 

[jgue467]

I think only the LCs are genuinely AWD. 4Runners are 4WD; meaning they can be either 2 or 4WD. So they stuck the Wrong badge on it, dumb arses!

 

[dirteater4]

I think only the LCs are genuinely AWD. 4Runners are 4WD; meaning they can be either 2 or 4WD. So they stuck the Wrong badge on it, dumb arses!

No 3rd gen has full time AWD. Here's a picture of my 99 selector. Notice the button on the side to engage 4 high.

 

[02SE]

No 3rd gen has full time AWD. Here's a picture of my 99 selector. Notice the button on the side to engage 4 high.

You have a Multi-Mode T-case with Full-time 4wd capability. Often erroneously referred to on here as AWD.

Pushing the 4WD button engages the front drive, but the differential in your T-case is still open which is to say unlocked. Hence you are then in Full-Time 4wd. If you then pull the T-case shifter straight back to "H4L", that will lock the differential in the T-case and you will then be in Part-Time 4wd.

The '99-'00 4wd Limited models, and '01-'02 4wd SR5 and Limited models, all have a Multi-Mode T-case with Full-Time 4wd capability. Although the method of locking the T-case differential varies between the '99-'00 Limited's, and the '01-'02 models.

 

[csp]

You have a Multi-Mode T-case with Full-time 4wd capability. Often erroneously referred to on here as AWD.

^^This^^^


AWD is NOT the same thing as full time 4WD. Notice that the button on the tcase selector says 4WD, not AWD.

 

[blaze17]

So what is the difference between AWD and Full Time 4WD then?

 

[slapdappy]

So what is the difference between AWD and Full Time 4WD then?

2wd>AWD>4WD high>4WD low>4WD low + rear diff locked.
2WD = center differential not engaged so power only to rear wheels.
AWD = center differential engaged but not locked. power to front and rear wheels
4WD = center diff locked, 50% power to rear and 50% power to front.
4WD + rear diff lock = 50% front, 25% rear left and 25% rear right.

 

[csp]

Fulltime 4WD systems generally send a 50/50 split of power to front and rear at all times, but have a differential built in to the transfer case that allows for the differences in speed of the front and rear driveshafts when going around a corner, for example.

An AWD system is one with an on-demand feature that allows power to be sent to the axle with the most traction when needed. Normal power splits are usually 50/50 or 60/40, but can be adjusted via computer as needed to as much as 98/2 or vice versa in some systems.

 

[blaze17]

So the term All Wheel Drive is reserved for active systems beyond just a center diff?

 

[KidVermicious]

So what is the difference between AWD and Full Time 4WD then?

See this post and the links in it.

The short version:

Part-time 4WD is traditional 4WD. A transfer case is used to give the driver the option of powering the front wheels or not, depending on conditions. Part time 4wd is normally not used on high traction surfaces (like pavement) because of the increased risk of damage to the driveline from binding.

Full time 4WD is traditional 4WD with the addition of a differential in the transfer case which allows the front and rear driveshafts to spin at different speeds, thus relieves the risk of damage due to driveline binding and allowing worry free use of 4WD on pavement. Some full time 4WD setups add a locking mechanism to the differential in the transfer case, giving the vehicle offroad traction equal to a part time 4WD vehicle. Toyota calls that locking center diff system Multimode.

AWD is similar to 4WD in that it is a system of delivering power to all four wheels. It is different in that it actively modulates the amount of power given to each wheel depending on the data from a multitude of sensors, normally through a system of electronically controlled clutches. AWD generally doesn't have a transfer case as we know it, and I don't know of any AWD vehicles that have low range.

So the term All Wheel Drive is reserved for active systems beyond just a center diff?

Um... sorta. Lots of 4Runners have what can be termed "active" traction management, but that's generally done through the brake system. AWD systems actually cut power to individual half-axles, and that's the main difference.