My 2003 Toyota Corolla has about 172K miles on it and I started noticing this noise about 2-3 months ago. Back then, I heard it when I reached speeds of 40-45 mph. It would go wa wa wa consistently and would get louder as I went faster and become one sound. The noise coordinated with the speed of my tires. My brother, who usually takes care of my car, lives in another state and with his work schedule could not diagnose it in-person. From my description, he thought it could be either be my wheel bearings, tires, or CV joints. I drove it around curves on off- and on-ramps and the noise stayed consistent no matter if I was going straight, making right curve turns, or making left curve turns. I also lifted the front of my car and put it on jack stands and tried wiggling the wheel. No give/wiggle. I bought 4 new tires and had it put on. The noise got a bit better/quiet but then it went back to the original noise. By then, the noise could be heard easily at 30 mph in my car. It was suggested that it could be the back wheel bearings, so I had the back hub and bearing assembly changed out on both sides. Noise volume dropped again but went back to the original volume and I can tell it is coming from the front of the car. Now, the noise can easily be heard at 10 mph and there is also very bad vibrations between 60-70 mph. Some people mentioned the center bearing, so I got under my car and checked things out. My CV joint boots are fine (no rips) and I tried moving the right and left axle joints and there was no give (solid). I tried wiggling my tires again and they were fine too. I am due to visit my brother during Thanksgiving, which is another 3.5 weeks. Between now and then, I’ll probably be driving a bit over 3000 miles. Does anyone have any ideas of what this problem is? I can’t afford to pay an actual mechanic to diagnose the problem (not guaranteed that they will find the answer), so I have to figure it out and have that specific thing addressed with people who do mechanical work on the side (cheaper rates). And if you have an idea of what it is, will it be okay to keep driving my car without having it fixed until Thanksgiving?
Oh and I don’t know if this is relevant but the noise is a bit more quiet when I drive my car in the mornings after it has rained the night before.