04 grand cherokee front 4wd locked
 

Hi,

I am having trouble with my 4wd.

I live in New England where it's cold, and the 4wd is essential.

I cannot release the front axles. Reverse and drive will not disengage them.

Is this a vacuum problem? Or a wax problem?

How much harm will it do if not corrected?

The obvious problem is the tight turning now.

Thanks...

When I have this issue, it's the linkage. Try rolling in nuetral at about 5mph then shift into 2wd. Sometimes if I put it into 2wd right before I park, let it sit for a while (with engine off) then into reverse then drive -it will release. It's tempermental for sure.