I was driving my 2003 4.6 4x4 today and noticed that I have a hollow humming sound coming from the front end. It was in 4hi and I switched to 2w and still got the sound and hard to turn tight. I have replaced the hubs, the tie rod ends both inner and outer, and the CV joint on both sides. I may have only replaced the CV joint on the passenger side but I don't rightly remember since I've replaced so much.

The sound is really noticable when you turn, and you have to listen hard when you are going straight.

Anyone have any ideas?

Thanks!

 

Have you checked the oil in the front axle?

 

Not lately, but last check it was full to the top. I will check it.

 

Take it for a drive then feel the center of the front rims and see if one is warmer than the other. It may help with what side to look at. A hub starting to go bad and a brake caliper hanging up and lightly dragging pads will do this. My guess is hub going out.