loud humming noise when i drive 60 to 80 mph?? - Toyota FJ Cruiser Forum
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post #1 of 44 (permalink) Old 03-10-2013, 05:33 PM Thread Starter
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loud humming noise when i drive 60 to 80 mph??

hey guys i got a frustrating problem.... i just bought my 2011 fj tt and when i,m driving on the freeway at speeds ranging from 60mph to 80 mph a loud humming noise starts and gets louder as i go faster. it sounds like theres a hole in my firewall or something. the sound seems to come from the air vents next to the windshield wipers. it's weird cuz it starts at different speeds and sometimes starts past 80mph and if it's windy it will start at lower speeds.if there is anyone out there that had a similar problem can you please help!!
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post #2 of 44 (permalink) Old 03-10-2013, 05:48 PM
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loud humming noise when i drive 60 to 80 mph??

This may sound odd, and it might not be the cause, but make sure your antenna is tightened. I've known of a few folks where it made a humming noise because it was loose. It is an easy place to start anyway.


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post #3 of 44 (permalink) Old 03-10-2013, 05:56 PM
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Re: loud humming noise when i drive 60 to 80 mph??

G'day FranJess,
Welcome from Down Under.
Its hard to diagnose sounds at the best of times.... especially in our box.
Have you done any mods or are there any mods on the vehicle. Tires, lift, lights, etc ... do you have the oem roof rack. This can drum loudly if the slats are in the wrong position.
As above it could be your aerial, but not easy to pin point without more knowledge of your rig.
The FJ is not the quietest beast at the best of times.
All comes down to trial n error...
Good luck
Cheers
Baz
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post #4 of 44 (permalink) Old 03-10-2013, 05:58 PM
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loud humming noise when i drive 60 to 80 mph??

My buddies rig did that too, check the placement of the movable bars on your roof rack. His most forward bar was too far to the front and crooked so it grabbed the wind funny


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post #5 of 44 (permalink) Old 03-13-2013, 01:35 PM
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Re: loud humming noise when i drive 60 to 80 mph??

My 2011 nsse does the same thing. Really bad when driving into a head wind. I don't have a roof rack so I know that's not it. When it gets really loud I can put my hand on the windshield and feel the vibration from the hum. Mine sounds like this .
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post #6 of 44 (permalink) Old 03-13-2013, 01:53 PM
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Re: loud humming noise when i drive 60 to 80 mph??

I know on chevy trucks a bug shield will case the same noise.. It took silicone in the door jambs (under rubber seal by windshield/door crossmember) to stop the wind vibration..
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post #7 of 44 (permalink) Old 03-20-2013, 10:35 PM
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Re: loud humming noise when i drive 60 to 80 mph??

Quote:
TMMIguy previously said: View Post
My 2011 nsse does the same thing. Really bad when driving into a head wind. I don't have a roof rack so I know that's not it. When it gets really loud I can put my hand on the windshield and feel the vibration from the hum. Mine sounds like this . Blow that Vuvuzela - YouTube
Do you put your hand at the top of the windshield? if not, try it and see if it goes away. If it does, You will need your windshield re-sealed.
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post #8 of 44 (permalink) Old 03-25-2013, 11:36 AM
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Re: loud humming noise when i drive 60 to 80 mph??

Tried pressing on the glass, still makes the noise. I did notice the vibration can also be felt and heard in the headliner also. It's hard to pin point exactly where the noise/vibration originates.
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post #9 of 44 (permalink) Old 03-25-2013, 12:15 PM
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Re: loud humming noise when i drive 60 to 80 mph??

Check the trim piece above the windshield. I recall where folks had a similar issue and it was due to this being loose.





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post #10 of 44 (permalink) Old 03-25-2013, 12:22 PM
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Re: loud humming noise when i drive 60 to 80 mph??

Does it only happen when your wife is in the truck? (Driving to fast?)
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