Strange 4WD behavior

[tonymac617]

I noticed that I may need an axle seal on the drivers side since the front transfer case is wet with fluid, but the other day while driving the misses to work, I put the truck in 4wd hi and started my 5 minute ride. When I took a tight right turn, it felt as if the 4wd disengaged and the truck wasnt in gear. Once parked with the engine running, I shut off the 4wd and the vehicle surged forward which scared the F**K out of me.


Any reason to think the Transfer case needs to be serviced or replaced? When I test drove the vehicle before buying it about 2 months ago, I did engage the 4wd and drove and everything checked out. I would like to get the fluids changed in the transfer cases for peace of mind but anything happen like this to anyone here?

 

[clkelley]

hmmm, not sure there Tony, when you take a look at the transfer case, see if there is fluid leaking from somewhere on the top of the front housing of the t-case. It is pretty common for the pump "shim" inside the case to rub a hole in the housing causing it to pump the fluid out which will cause the t-case to be ruined inside pretty quick if not fixed quickly. Not sure if this would cause your symptoms or not but it gives you a starting point for something to look for. As for the front diff seal leaking, that is pretty common too, but I doubt that that would cause it to surge forward while parked, (I am assuming you meant while in park)

 

[tonymac617]

Thanks for the input. I havent yet been able to get under the truck to look, but im going to take it to a buddies shop on Monday after work for a bumper to bumper look through. Ill know more once I get it up on the lift and take a look around.