Does the type pf road surface make a difference? Our '13 Pilot is very sensitive to road surface, noise-wise. If it started after the new tires, perhaps the tread pattern is the culprit. I've stuck with the OEM Michelins for three sets now with no problems and phenomenal tread life.

 

Road surface doesn’t seem to make a difference. Just drove 6 hours today and when going over asphalt or concrete the noise does not change. I do though regret not going with the Michelins.

Dealer is now also saying tires but they also told me hub assembly and then the rear end.

6 hour drive of constant humming was rough

 

Check out the post by H Parker "Oscillating humming noise" and replied to by Dr. Bob. The Doc suggested tire noise and scored a goal five-hole. The previous owner had snow tires installed.

 

Sounds like a bad hub bearing(s)

 

The quick-and-dirty method of eliminating or confirming tires as the cause is to borrow the tires from another car and drive on them. My next-door neighbor has an RDX, and it had cheap tires on it. I proposed mounting the Michelins from my Pilot on it while I have them off for spring cleaning and inspection. The difference in noise levels was significant enough that his wife told him to go tire shopping. If you have that option, it beats scratching your head speculating, or throwing other parts and work at it. FWIW, the noisy RDX tires were just as noisy mounted on my car.

At 130k, there's a decent likelihood that it can use new wheel/hub bearings, as @21EXL points out. By that mileage there are several other things to look at in the same area, like bushings, ball joints, links, and of course the struts. Maybe drive axles too.

TL;DR --
The way you drive the car dramatically affects the life of certain things like the axles and CV joints. And maybe bushings. Time and environment affect rubber bushings. Wheel bearings suffer based on load and speed. Bearing life is affected at roughly the square of the change in speed, so that constant freeway-speed driving that allows the engine and transmission to relax is actually a negative for the ball bearings in the wheel hubs. Our Pilot, coming up on a dozen years old next fall and with ~~60k on it, is still far from showing any driveline symptoms. The only out-of-cycle work done on it so far is compliance bushings. It's kind of boring actually, with all the support stuff in the workbay and the Pilot that demands so little. I'm going to drive it to get some garden soil today, and it will get cleaned before it goes back to summer hibernation. We use it just enough during the summer that it doesn't make sense to store it off the ground. At least it doesn't sit for six months on the same spots on the tires.

In the weeds --
Anybody know the origin of the "five hole" phrase?

 

It's a hockey term, weeds. A puck going into the net between the [kneeling, I think] goalie's legs is a "five hole". I would infer that in the women's hockey leagues it would be a "four hole". It seems to have the connotation of a quick, accurate, skillful, and unquestionable goal in hockey. As applied to other areas it could imply appropriateness and accuracy. In this case it's also a compliment.

 

Appreciate the responses. I hear the topic of bearings and will revisit. These cars have hub assemblies which house the bearing. Dealer said they replaced passenger front twice as that’s where they thought the issue was. It did nothing to stop the noise. Perhaps driver side but would think the should have checked that.

Noise does not change over different road surfaces. Asphalt, concrete, driving in rain, all sound the same. At speed I can hear the normal tire sounds and this seems to be another noise above that. This is what keeps steering me away from tire but Going to try another set of front tires as suggested and see where that goes.

will update after that test

 

I don't know if it's your wheel bearings, as you stated you had the dealership change out your passenger hub assembly.
I had a wheel bearing go out on another car, and it's a really one of those issues that assaults the senses. You can feel the rumble as well hear it all the time above speeds 30mph.
You can try to spin the suspected wheel and try to hear and feel roughness in the spin.
Disconnecting the cv shaft and removing the brake rotor while you spin the hub may give you a better feel of the wheel bearings is action.

 

Thank you again for the replies. I appreciate the discussion very much. On the passenger bearing my mechanic had already said it was ok but I went to the dealer to see if the could identify the issue. They said passenger hub assembly ($950) and when I drive the car the same problem was there. Went back and took the mechanic for a ride. He agreed it was still there and they took the car in again. They then said the hub assembly they put in was defective and they put in a second one. Still did not fix the problem but they credited me the original charge. Next visit the said the noise was coming from the rear. $900 later still not fixed.
Going to try a different set of front tires and then try to replace driver hub assembly myself

 

Can you add a video of the noise, preferable to have a helper take video from both front and rear..