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Car Forum / Toyota / Toyota Trucks / October 20072007 Toyota Tacoma--High Pitched Whine
I just bought a brand new 2007 Toyota Tacoma TRD Sport Package. Great truck, but when I get it up to 75-80 mph on the freeway, it exhibits a weird, intermittent whining sound. It is clearly caused by wind noise (not a mechanical issue), and only when a strong side gust hits. It's a very loud noise and sounds like when you put a blade a grass in between your palms and blow. I can't pinpoint the location, but it's definitely coming from the front end (maybe the front passenger side). Has anyone else every experienced this? I would take it into the dealership, but to reproduce the noise I have to get the truck up to 75 mph--a tough task without getting pretty far out of Atlanta traffic. > Has anyone else every experienced this? I would take it into the > dealership, but to reproduce the noise I have to get the truck up to > 75 mph--a tough task without getting pretty far out of Atlanta traffic. In perfect conditions, at the right speed with the right crosswind, I get a "steam whistle toot". It's only noticeable with the stereo at very low volume, or off. I've never heard it at legal speeds. I stopped worrying about it when the Thule Xsporter I added made enough noise to make me not care about other noises. <G> I installed the Toyota hood bug deflector after the rack, and I think it *may* have lessened the tooting occurances. My truck is a TRD Off Road, so you can eliminate the Sport's fake hood scoop as the noise source. > > My truck is a TRD Off Road, so you can eliminate the Sport's fake hood > scoop as the noise source. I forgot to mention, I have an Access Cab. I don't know if the airflow differences over the different roof lines make a difference. > > My truck is a TRD Off Road, so you can eliminate the Sport's fake hood > > scoop as the noise source. > > I forgot to mention, I have an Access Cab. I don't know if the airflow > differences over the different roof lines make a difference. Good point, Barry. Because I was thinking that perhaps the fake scoop was causing the noise. But the noise I'm experiencing is certainly loud enough to drown out the radio--even drowns out conversation in the truck! > But the noise I'm experiencing is certainly > loud enough to drown out the radio--even drowns out conversation in > the truck! That would certainly bug me. >I just bought a brand new 2007 Toyota Tacoma TRD Sport Package. Great > truck, but when I get it up to 75-80 mph on the freeway, it exhibits a [quoted text clipped - 7 lines] > dealership, but to reproduce the noise I have to get the truck up to > 75 mph--a tough task without getting pretty far out of Atlanta traffic. Just curious, have you tried to duplicate the noise in a lower gear at a lower speed with similar RPM and load? As in, going up a hill in a lower gear at similar RPM. Or, when the noise is happening, downshift to 4th and see if it's effected. >> I just bought a brand new 2007 Toyota Tacoma TRD Sport Package. Great >> truck, but when I get it up to 75-80 mph on the freeway, it exhibits a [quoted text clipped - 12 lines] > gear at similar RPM. Or, when the noise is happening, downshift to 4th and > see if it's effected. From the sound you describe, with the wind velocity you are experiencing, it may be a fairing or non-metalic part that is vibrating against another part creating the howl. Tap on wheel moldings, plastic pieces, fiberglass close-outs to feel, see, and hear for small gaps. If you find a close-out or plastic panel that is not snugly fitting and might be in the airstream, try putting a piece of tape on those suspect parts one at a time and repeat the high speed drive to see if the noise abates. Loose fairings, close-outs, body modlings, and such can create a harmonic resonance within the cab when they vibrate depending on given conditions. > From the sound you describe, with the wind velocity you are experiencing, > it may be a fairing or non-metalic part that [quoted text clipped - 9 lines] > a harmonic resonance within the cab when they vibrate depending > on given conditions. Mud flaps come to mind as well. Mine seem to transfer a lot of sound into the cabin when they drag or touch anything. >> From the sound you describe, with the wind velocity you are experiencing, >> it may be a fairing or non-metalic part that [quoted text clipped - 12 lines] > Mud flaps come to mind as well. Mine seem to transfer a lot of sound into > the cabin when they drag or touch anything. I think the noise is coming from the windshield try sealing the top seam. kicksave <Brian.D.Gage@gmail.com> wrote in news:1193629393.982470.107410 @z9g2000hsf.googlegroups.com: > I just bought a brand new 2007 Toyota Tacoma TRD Sport Package. Great > truck, but when I get it up to 75-80 mph on the freeway, it exhibits a [quoted text clipped - 7 lines] > dealership, but to reproduce the noise I have to get the truck up to > 75 mph--a tough task without getting pretty far out of Atlanta traffic. This is a known problem with 05-07 Tacomas. There are some references to it when searching Google etal. It is caused by the windshield trim vibrating against the seal (or something like that). I understand there is a TSB so ask your dealer service manager. Good Luck. I haven't gotten mine fixed yet. Next time I am in for service I will bring it to their attention. |
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