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post #1 of 12 Old 02-03-2013, 02:22 AM Thread Starter
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Strange Humming Noise Coming from the Back of My car

So for about a year now, maybe more I am hearing a constant humming noise coming from the back of my 03 Altima 2.5 S. For the longest time I thought it was the wheel hub assembly which is what a lot of people told me, as well as my own research I had found online

So I purchase a new wheel hub assembly for the left rear wheel, have my best friend (certified mechanic) replace it and STILL have this humming noise

It becomes audible around 40 mph, gets loud around 45, fades away from 45-55 and then at 60 mph it reaches its peak loudness before fading away to a low pitched almost inaudible hum at speeds of 65. I travel the highways here in Orlando at about 70 mph usually and don't hear anything

We (mechanic friend and I) determined it was the left wheel bearing hub assembly because thats where the sound is most audible when you sit in the rear passenger seats.

So we misdiagnosed. My mechanic friend dismissed it as road noise afterwards, but now Im out $120 ($60 for the part, and $60 to pay my friend)

My 03 Altima 2.5 S is now at 125k, and even though I plan to sell it in roughly 8-10 months, does anybody know what could be causing this noise?

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post #2 of 12 Old 02-03-2013, 04:15 AM
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I have had the same problem for 5 months, no solution yet though. Let me know if you figure it out

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post #3 of 12 Old 02-03-2013, 04:55 AM Thread Starter
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I heard it may have something to do with brakes, but not sure how though. Any help would be great

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post #4 of 12 Old 02-03-2013, 05:24 AM
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i have had the same exact problem. But for me the sound is coming from the right rather then the left. Ive just gotten used to it and dont plan on spending the time and money to figure it out. I really only hear it on the freeway.
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post #5 of 12 Old 02-03-2013, 03:38 PM
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THat happened to my car. I tought the noise came from the right side. Changed the right rear wheel hub and the noise was still there, although not as loud as before.
Problem went away when I replaced the left side rear wheel hub.

In my case it lools like they went bad both at the same time.


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post #6 of 12 Old 02-03-2013, 05:01 PM
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Its the wheel bearing in one or both of the hubs.





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post #7 of 12 Old 02-03-2013, 05:25 PM
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A few things I can think of. My dad had the same problem recently on his car, I replaced both of his rear hubs. Both actually were bad, the noise was reduced a good amount but didnt go away fully. Then after that we had the feeling the tires were making the noise as well. A lil later he put on new tires, and the noise was 95% gone, so the tires are also a possible cause. A lil FYI on parts though, just cause they are new does not mean they are good, I can recally plenty of times a new part was bad so keep that in mind. Especially cheap replacement parts!!


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post #8 of 12 Old 02-04-2013, 01:32 PM
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hey the best solution i have found is to turn the nob on your radio clockwise until it stops

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post #9 of 12 Old 02-05-2013, 04:19 AM Thread Starter
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Quote:
Originally Posted by Drew3.5Alti View Post
hey the best solution i have found is to turn the nob on your radio clockwise until it stops
Hahah, my mechanic friend said the same thing

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post #10 of 12 Old 02-05-2013, 11:55 PM
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Haha thats just the cheap way! I would definitely replace my hub assembly(s) if i knew thats whats causing the noise in my car. But im mot certain, so im letting it go for now. Does anyone know if it leads to other problems or if its just road noise?

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post #11 of 12 Old 02-06-2013, 01:11 AM
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ugh maybe its the right side?

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post #12 of 12 Old 02-18-2013, 02:32 AM
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wheel hubs. It will roar at any speed and consisten at highway speed. Ride like that long enough and it will put uneven wear on your tires and that will add to it. If ones bad the other should be replaced also.
Mine were so bad you couldnt have a conversation riding down the highway and the vibration was felt all the way to my seat. Wider tires on a car will shorten the life of a bearing alot faster. i was running 235 45's

keep riding with the stereo blasting and when your hub locks up going 70 miles and hour let me know if your radio is still working. lol

Last edited by 4ftswells; 02-18-2013 at 05:24 AM.
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