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Hybrid Vehicles Toyota Highlander Hybrid Toyota Highlander Hybrid
3943 messages, Last post on Nov 02, 2009 at 9:19 AM
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Hi everyone! I purchased a 2007 hh 4wd in June and love it. However, when the rear window is down while I am driving, it makes a sound that I can only describe as "wind vibration" that is almost deafening. It makes my ears want to pop. I spoke with a friend who says her 2005 highlander does the same thing. Have you experienced this?  thanks! |
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Replying to: marieze (Aug 05, 2007 7:24 am) |
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Replying to: marieze (Aug 05, 2007 7:24 am) All of our old Ford country squire station wagons would do that unless you lowered the rear tailgate window slightly. Removing the reverse flow flap valve from the exhauster hidden in the bottom of the driver's side rear quarter panel will help reduce the sound volume. Adding two more exhausters, like in the bigger Toyota SUVs, will completely alleviate the problem but then the A/C will not adequately cool the interior on a HOT day. Too much pre-conditioned, COOLED, cabin airflow escaping via the larger rear exhauster openings. Catch 22. |
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Hello all. I have '07 HH Limited w/ Nav. Thanks to you all, I knew how to pulse and glide right off the bat. I"m getting about 27 to 28mpg in local suburb terrain/traffic. However, I'm only getting 24mpg on highway driving at around 75 to 80mph. But I do get 27mpg at 60 to 65mph. The only complaint I have is that the car is noisy. At 75mph, I hear wind whistle on all 4 sidewindows. I'm also hearing a lot road noise. I'm comparing to my '06 4-cyl camry and haven't had opportunity to compare/testdrive other competing SUVs. (i.e. 400h, pilot, etc.) Any of you had a chance to compare the noise level of HH to any other SUVs?
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Replying to: montecristo (Aug 07, 2007 9:16 pm) For the most comfortable and quiet ride install summer only bridgestone Turanza tires. Don't go overboard with 18" or higher rims, 17" will be perfect, 16" even better, more sidewall flex. There is a silicon grease, paste, in squeeze tube form that can be purchased at any NAPA store that can be used on the door sealing rubber weather stripping for better sealing and thereby to lessen the wind noise. But 4 spray cans of undercoating and after a thorough pressure washing use one can each on the fender well liners. Amazingly, your windshield wipers can be a major contributor to the wind noise level so I buy the new Bosch rubber "wing" shaped ones. |
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Replying to: montecristo (Aug 07, 2007 9:16 pm) Our '06 HH cames with Goodyear Integrity, noisy as heck, soft and squishy and jiggled and rocked and made the car lean on curves. If your HH comes with these tires, do seriously consider changing them. If your HH is 100% on-road, Wwest's suggestion will work well. If you take your HH onto dirt tracks once in a while, check around for other SUV tires. Any good brand is better than the Integrity. We changed to Goodyear Fortera SA (Silent something...) and it has worked very well. Car is smooth, quiet and rock solid on turns and curves. We drive on dirt tracks often, about 35% of the time and they have held up well. |
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Replying to: montecristo (Aug 07, 2007 9:16 pm) |
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wwest & cdptrap, Thanks for the advice. My '07 HH came with Michelin Energy tires. I wonder if silicon paste or aerodynamic windshield wipers would make noticeable difference though.. I'm on paved road 100% and I'm very sensitive to noise. HH is dead quiet at below 40mph but becomes very noisy at highway speeds. I've driven '95 Saab 900, '97Acura Integra, '00Lexus ES300, '99Jeep Cherokee, '06BMW 525, and '07 camry at least 20,000miles each and I must say '07 HH is one of the more noisy after acura and cherokee. I checked Pilot site and it seems Pilot owners think highlanders are quieter. I wonder if Lexus RX400h makes significantly less noise. Someone please tell me no because otherwise I am going to regret for not considering 400h for $4,000 more... |
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Replying to: montecristo (Aug 08, 2007 8:16 pm) My '01 911/996 cabin is tight and very quiet so the little bit of wind noise that I get, starts, at about and above 120 MPH is very irritating. At first I thought it was wind noise as the windows "lifted" from their seals at the higher speeds so I used the silicon paste....even quieter overall but high speed noise, seeming wind "whistle", is still there. As sort of a last resort I removed the front and rear windshield wipers. Noise GONE. Turned out it wasn't the rear wiper at all and installing those new EXPENSIVE, $40/pair, Bosch "wing" front wipers eliminated the "noise" altogether. Haven't yet tested at 120 MPH plus but that was only there to get your attention, noise actually started up at about 40-45 MPH. |
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Replying to: montecristo (Aug 08, 2007 8:16 pm) I too have a 2007 HH Limited and noticed pronounced wind noise above 50mph. I've determined the wind noise is coming from either the roof rack cross bars or the rear spoiler. There is a way to remove the cross bars but I am reluctant to do so as I don't want to damage/marr the vehicle. The wind noise from the side windows is minimal as is the engine and road noise. Of course when the ICE is off and in motion, the car is very quiet indeed. I also have the Michelin Energy tires (LX4) which may be why there is very little road noise. Still, I am extremely pleased with the vehicle and getting an average of 28mpg confirms I made a good choice. I wonder if the 2008 Highlander has this same issue as the cross bars are now an option instead of being standard. Regards - M. J. McCloskey
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