riveraj33

SO i got one done at the dealer and it was $125 for the front bearing and $175 for labor. Sat there for 3 hours!

Turns out its the wheel bearings. I'm in VA and they are charging me $330 per wheel. Says one needs it and the other front bearing is starting to go.

Certainly worth checking out. Especially if it is at higher speeds, and has a bias turning one way or the other.

Thanks. The sound is the same regardless of left or right turn.

Have to pull the fill plug and send in a lighted borescope/endoscope or simple drain the fluid. Will be easy to tell. If you don't want to remove the wheel/liner or put the Edge up on ramps, then yeah, dealer needs to check. But most dealers won't simply replace fluid, they will suggest replacing the PTU altogether. So you may want to call around first. Especially Lincoln dealers as they are generally more cooperative with fluid flushing the PTU/RDU.

 

The manual does not mention RDU as a possibility, but it is much easier to check that, so have both units checked.

Thanks! Do you think it could be the wheel bearing instead? I've had someone mention that to me.

Ruh Roh. AWD? check the PTU for water contamination, do not drive further, hopefully not already destroyed

Its more of a humming sound. Almost like there is a small hole in the exhaust but in this case its only over 20-30 mph when you hear the sound. It is AWD. how can i check the PTU for water contamination....dealer?

I have a 2013 Edge Sport that started a humming sound which is coming from the front of the truck. This started after a recent rain storm that caused flooding on our highways. During the storm I went through a large area of water at around 45mph that was maybe 1-2 feet deep (i could not tell until I went through it). Now when i go over 20mph i hear this humming sound and it gets a little louder the faster i go. The sound only goes away when i go back under about 20mph. It doesnt make this sound while idling or when revving up the engine while parked or in neutral. Any idea what this could be. Money is tight and im hoping its not serious.