High pitch noise coming from passenger side

huff442 · 06-19-2009, 06:23 AM

I had a similar noise in my car. A high pitched whine coming from the passenger side. Guess what it was? My wife closed the air vent on the door. With the fan speed set to AUTO, the velocity of the air moving through the slits in the now-closed vent was fast enough to turn it into a dog whistle!

Check your vent and see if it's closed.

Roo · 06-19-2009, 10:00 AM

Quote:

Originally Posted by huff442

I had a similar noise in my car. A high pitched whine coming from the passenger side. Guess what it was? My wife closed the air vent on the door. With the fan speed set to AUTO, the velocity of the air moving through the slits in the now-closed vent was fast enough to turn it into a dog whistle!

Check your vent and see if it's closed.

This problem happens only when you raise the RPMs. I turned my A/C and radio off and the noise still occured.

huff442 · 06-19-2009, 10:06 AM

Maybe someone secretly installed a Turbo in the night????

2bits · 06-20-2009, 03:14 AM

Had my 2pm appointment today at a different dealership, and this tech heard it right away. After a couple minutes poking around, he got pretty close to the root cause, but not quite.

There is a "white plastic bracket" with two wiring harnesses connected. By applying pressure to the bracket mounting points and/or the wires themselves (I'm not sure), he was able to change the pitch and volume of the tone. It's not necessarily that bracket/wire causing the problem since there could be other connected components above. Even with a flashlight, the area is hard to inspect without removing the glove box entirely.

Next Thursday, they'll remove the glove box and get a close look. I'm optimistic that this guy will identify the suspect component then.

BTW, my car is a base sport, so it's not Nav related.

06-20-2009, 03:14 AM	#4 (permalink)
2bits Base Member Join Date: Mar 2009 Location: Seattle Posts: 118 Drives: 09 370Z Blk Sp 7AT Rep Power: 18	Had my 2pm appointment today at a different dealership, and this tech heard it right away. After a couple minutes poking around, he got pretty close to the root cause, but not quite. There is a "white plastic bracket" with two wiring harnesses connected. By applying pressure to the bracket mounting points and/or the wires themselves (I'm not sure), he was able to change the pitch and volume of the tone. It's not necessarily that bracket/wire causing the problem since there could be other connected components above. Even with a flashlight, the area is hard to inspect without removing the glove box entirely. Next Thursday, they'll remove the glove box and get a close look. I'm optimistic that this guy will identify the suspect component then. BTW, my car is a base sport, so it's not Nav related. Last edited by 2bits; 06-22-2009 at 05:52 PM.

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06-19-2009, 06:23 AM	#1 (permalink)
huff442 Enthusiast Member Join Date: May 2009 Location: NW Arkansas Age: 55 Posts: 309 Drives: 09 370Z 6mt Tour/Spt Rep Power: 18	I had a similar noise in my car. A high pitched whine coming from the passenger side. Guess what it was? My wife closed the air vent on the door. With the fan speed set to AUTO, the velocity of the air moving through the slits in the now-closed vent was fast enough to turn it into a dog whistle! Check your vent and see if it's closed.

06-19-2009, 10:06 AM	#3 (permalink)
huff442 Enthusiast Member Join Date: May 2009 Location: NW Arkansas Age: 55 Posts: 309 Drives: 09 370Z 6mt Tour/Spt Rep Power: 18	Maybe someone secretly installed a Turbo in the night????