I have an 2007 Tacoma Sport. If I switch to 4x4 mode from park, and then try to accelerate with the steering wheel fully turned, it seems like the wheels do not want to move at all even if you press down the acceleration. Car also makes some strange noise (Chattering?/clunking sound) I've read somewhere on here it that it may be related the rear diff. LSD oil. Will changing the rear diff oil helps? I have no idea when it was last changed.
Switching to 2 wheel drive eliminate this issues. Please help. Thanks.