Alright, So we had a winter storm blow thru with some snow. I drove the loyale and ended up using my 4 wheel drive a bit here and there to rally around the cityiots. I had not used the 4x4 for a while but it was working great before with no issues. The 4x4 seems to be working BUT... I seem to have two issues now that are related.
1. Now when driving in FWD I can hear a whine in the rear end. It sounds like gear noise for sure, or maybe bearings. BUT... When I engage the 4x4 - the whine goes away instantly and all is quite. This is repeatable, the noise is now constant in FWD, and subsides when engaged in 4x4.
2. Also, when I engage the 4x4 I get some serous gear grinding at the transaxle before it engages. This is repeatable and does it every time I push the button.
I have not had the car off the ground or done any testing yet. Only thing I have done to the 4x4 system was to replace the drive shaft due to failed U joints. But the system had ran fine for 25,000 miles after that. It wasn't until not using the 4x4 for a year or so and then using it recently that this issue has come up. Any ideas where to start?