So i went 2 lock my truck in 4wd yesterday and climb a little hill and noticed that something was terribly wrong. The 4wd Low light comes on, relay clicks in perfect and transfer case seems 2 engage but then you go 2 climb something it seems like the transfer case is slipping and not putting power to the front driveshaft. My dad thinks the fluid level might be low and it may be slipping badly. I do not think it is the hubs or cv axles because there is not clanking or rattling when driving it 2wd or 4wd from them. I do not suspect the front end either as again no noises. U can feel the t-case slipping and hear it but its not very loud. the T-case may be done? anyone have any ideas on the problem?

it is a 02 FX4 4.0 Auto w/4.10s if that helps any

 

go get someone else and put the truck in 4x4 and pull forward. if ur front cv shafts are spinning then its probably not the transfer case. if they are spinning keep the truck in 4x4 and jack the front up and see if u can spin the wheel without the cv's spinning. if the tires will spin and the cv's dont then the hubs arent working. u can also put the truck in 4x4 and go under the truck and see if u can spin the front drive shaft. if u can then its in ur t-case.

 

its def. coming from the tranfer case you can hold the front driveshaft in 4wd i belive the transfer case may be fine i believe its the slip yoke at the t-case

 

if the 4x4 indicator light is on, the transfer case should be in gear. there is nothing in the transfer case to slip, its chain driven. but what youre saying is you can put it in 4wd and still turn the front driveshaft by hand?

 

If the shift motor is working you will be able to go into low gear. If you can go into low gear but the front wheels are not engaged then something is terribly wrong because 01 and up trucks don't have hubs.

 

yea no kidding... your cv's will always spin with your front wheels, problem is at the t-case but I wouldn't know where

 

could it be the slip yoke?

 

fixed it.... it was the slip yoke on the back of the front driveshaft...... found an almost new one in the junkyard and the ranger is back in action!!!!!

 

Nice. Glad you got it done.