Messing with 4x4 System - Questions

[eskimochaos]

So yesterday I did a little more than my usual 3min ride in 4lo on a monthly basis. I do this because I already had to have the actuator replaced under warranty because I assume it was never used while sitting at the stealer.

Anyways, I tried the CDL and it worked while rolling at around 20mph. No I didnt attempt to turn with this, especially since I was doing it on the street. It successfully engaged and disengaged almost instantly after I hit the button. So I remained in 4lo and drove to street with a hill. Its hardly anything but if you let go of the gas you roll. Anyways I decided to try out Downhill Assist Control. Stopped while in 4lo, still in D, hit the button, took my foot off of the break and I assume it began to work because ABS was going off like crazy. Keep in mind I was only going like 2mph.

Does DAC always use ABS regardless of traction or not? Just wondering because I thought that DAC assisted in breaking - not solely relying on ABS. Anyway everything worked as planned just a couple of questions:

Upshifts in 4lo are abrupt especially 1 to 2, downshift from 4 or 5(im not sure what gear im in at about 15mph) seem to happen in rapid succession when coming to a slow stop...is this normal? I dont go over 15mph in 4lo and stopping all the gears seem to down shift one by one 5-4-3-2-1 at a certain speed.

When in 4lo, there is a whine coming from the T-Case, not like a scream or grinding but you can "hear" it if you know what I mean..is that normal?

Lastly, does DAC solely use ABS to slow your movement down a hilll?

Thanks in advance!

 

[CJ3Flyr]

So yesterday I did a little more than my usual 3min ride in 4lo on a monthly basis. I do this because I already had to have the actuator replaced under warranty because I assume it was never used while sitting at the stealer.

Anyways, I tried the CDL and it worked while rolling at around 20mph. No I didnt attempt to turn with this, especially since I was doing it on the street. It successfully engaged and disengaged almost instantly after I hit the button. It sounds like you're treating the lock function with the proper respectSo I remained in 4lo and drove to street with a hill. Its hardly anything but if you let go of the gas you roll. Anyways I decided to try out Downhill Assist Control. Stopped while in 4lo, still in D, hit the button, took my foot off of the break and I assume it began to work because ABS was going off like crazy. Keep in mind I was only going like 2mph.

Does DAC always use ABS regardless of traction or not? Just wondering because I thought that DAC assisted in breaking - not solely relying on ABS. Anyway everything worked as planned just a couple of questions: Soley brakes.

Upshifts in 4lo are abrupt especially 1 to 2, downshift from 4 or 5(im not sure what gear im in at about 15mph) seem to happen in rapid succession when coming to a slow stop...is this normal? I dont go over 15mph in 4lo and stopping all the gears seem to down shift one by one 5-4-3-2-1 at a certain speed. Normal It does not go into 5th when in low range. The computer limits it to 4th gear. The manual allows for a much higher low-range top speed than 15mph. I think it's mid-high 30's.

When in 4lo, there is a whine coming from the T-Case, not like a scream or grinding but you can "hear" it if you know what I mean..is that normal? Yes, normal.

Lastly, does DAC solely use ABS to slow your movement down a hilll? Yes. In fact if you go down a steep hill in 1st gear the engine braking is so powerful you may not even notice DAC because it won't activate.

Thanks in advance!

It all sounds good to me.

:cheers:

 

[eskimochaos]

Thank you sir. My sole purpose in testing this is to ensure getting up the mountain that my school is on in the snow will not be a problem due to "sticky" 4wd components that are never used.

 

[Methodical]

when using DAC, put your gearshift into it's lowest gear (1, or L).