More issues with my 4WD system

[challenger]

So I brought my Vehicle to the stealer, with my on going issues that are probably completely unnecessary and should have been solved a long time ago.

My 4wd light has been flashing this time and before I had a used differential installed because of the ring and pinion going out.

The dealer said my issue now is either the actuator in the transfer case (2000), or they did not set the shifting forks right at the place before. Upon doing research I have also seen info on the front diff actuator, that looks like it could be the issue. Is there any way I can check this easily?

To me, two parts of an almost bullet proof 4wd system (Ring and pinion and transfer case actuator) simultaneously failing seems like it is a little bit far fetched. Does this sound like a fair assumption? My thought is there is something wrong with either the differential they installed or the way they installed it.

Any one have any insight or ideas? I am sick of not having my 4wd working :ybrick:

 

[YotaZach85]

It is most likely the actuator, they are electric in the 00 model and you're supposed to put the vehicle in 4WD once a month to keep them from siezing up. Try tapping on the actuator with a hammer and see if it kicks in. BTW, I've heard price tags of about $900, I don't know if thats accurate though.

 

[TheDurk]

I would try this:

First, verify that front drive shaft rotates freely by hand in 2WD--this means both TC and ADD are disengaged. Jack up the front. Place into 4WD. Spin a tire and see if shaft is turning. If it is, ADD is engaged and TC is not. If it is not turning, then ADD is not engaged. Then see if shaft turns by hand. If it does, TC is not engaged either. If it does not turn, that confirms TC is engaging as it should. If tire won't spin at all (except to turn other wheel backwards), 4WD is engaged fully, and problem is in sending position switch on front diff.

There is an easier way on the earlier vacuum systems like mine, but I am unfamiliar with the all-electric ADD on the 2002. So...your TC is a 2000...and your ADD is 2002? Is there a chance they need to adapt the 2000 TC switches to feed the 2002 electric ADD? Because I believe the 2000 ADD was still the vacuum system and I don't know if it is plug and play, so-to-speak, with the 2002 set-up.

 

[challenger]

I would try this:

First, verify that front drive shaft rotates freely by hand in 2WD--this means both TC and ADD are disengaged. Jack up the front. Place into 4WD. Spin a tire and see if shaft is turning. If it is, ADD is engaged and TC is not. If it is not turning, then ADD is not engaged. Then see if shaft turns by hand. If it does, TC is not engaged either. If it does not turn, that confirms TC is engaging as it should. If tire won't spin at all (except to turn other wheel backwards), 4WD is engaged fully, and problem is in sending position switch on front diff.

There is an easier way on the earlier vacuum systems like mine, but I am unfamiliar with the all-electric ADD on the 2002. So...your TC is a 2000...and your ADD is 2002? Is there a chance they need to adapt the 2000 TC switches to feed the 2002 electric ADD? Because I believe the 2000 ADD was still the vacuum system and I don't know if it is plug and play, so-to-speak, with the 2002 set-up.

Sorry for the mix up, I meant they would charge 2k if it were that. The transfer case as far as I know is still the original one that was on it

 

[TheDurk]

Sorry for the mix up, I meant they would charge 2k if it were that. The transfer case as far as I know is still the original one that was on it

hehe...yeah, a "$" would have really been useful. Glad I didn't go looking at circuit diagrams.