Rear Window noise problem

Hyundai Forum Hyundai Classifieds Photo Gallery Member List Calendars Search Contact HF Sponsors
Hyundai Lineup Hyundai News Hyundai Recalls TSBs Timeslips Register Login

Rear Window noise problem

Printable Version

Hyundai >> Vehicle Line Up >> Hyundai Santa Fe >> Rear Window noise problem

Page: [1]

Message

<< Older Topic Newer Topic >>

Rear Window noise problem - 5/14/2007 6:56:48 PM

gradja

Posts: 5
Joined: 5/14/2007
Status: offline

I have an '07 Santa Fe Limited AWD w/Sun roof and have noticed that when I have the rear windows down (none others down) there is a lot of noise. Maybe that's the wrong description. It's almost like there's a pressure issue. The faster you go (it starts around 30) the more pressure is created to the point that I feel my head may explode (ok, maybe not explode, but it hurts). Has anyone else noticed this? Opening the front windows or sun roof relieve the problem, but I'd think that this shouldn't be happening.

Post #: 1

RE: Rear Window noise problem - 5/30/2008 4:33:55 AM

glampins

Posts: 8
Joined: 2/25/2008
Status: offline

I just dropped my rear windows on my 08 Santa Fe for the first time and the popping pressure in the vehicle is unbearable. The more you open the windows and the faster you go, the worse the pressure on your ears. This has to be a design flaw. I may buy some rain deflectors and stick them on. Maybe they will change the air flow and lessen the pressure. As it is now, I won't let the rear seat passangers even try to open the windows. Any other thoughts or solutions?

(in reply to gradja)

Post #: 2

RE: Rear Window noise problem - 5/30/2008 7:32:11 AM

NovaResource

Posts: 637
Joined: 5/29/2005
Status: offline

Years ago, cars had rain channels that changed the airflow over the car. Today, there are no rain channels because they created drag, lowering the highway fuel economy. The result is the noise you are getting. Just about all cars do it.

Basically what's happening is that the air pressure outside is higher than the interior and as the air enters the inside of the car, the pressure builds until it is equal to outside slipstream and no more air can get in. It then spills out with a little help from venturi effect, then the process starts again. This does this so rapidly that it sounds like a helicopter.

Having both front and rear windows open helps but this problem is not one that car designers worry about anymore. This is because most people don't drive with their windows open anymore; they just keep the A/C on. At highway speeds, windows up and no rain channels help fuel economy (even with A/C on). The window rain deflectors will help slightly but don't expect miracles.

_____________________________

Octane Truth: Regular or Premium? (Car and Driver Magazine: November 2001)

(in reply to glampins)

Post #: 3

RE: Rear Window noise problem - 5/30/2008 12:29:09 PM

glampins

Posts: 8
Joined: 2/25/2008
Status: offline

Thanks Nova. I won't waste my money on the deflectors. I'm not much of an AC person though. I'll just have to live with the problem. My Ford Escape never did it, with or without deflectors.

(in reply to NovaResource)

Post #: 4

RE: Rear Window noise problem - 5/31/2008 1:44:59 PM

gradja

Posts: 5
Joined: 5/14/2007
Status: offline

Must be right about manufacturers not worrying about it. I road in an '08 Acadia and it had the same problem.

(in reply to glampins)

Post #: 5