Wind/fan noise from the back when road is wet?

2009Prius · 10-30-2009, 01:47 PM

A few days ago I heard a noise coming from the back of the car that sounds very similar to the wind noise when a window is open. But all windows were closed and I confirmed it wasn't the radio. I opened and closed all windows the noise was still there. It was not there when the car was not moving. The noise also sounded like air going through a vent. I checked the high battery temperature with ScanGauge. It was only 19C (66F) and I have never heard the battery fan coming on even during the hot summer. I checked all glass and none was broken or cracked.

Now the noise is gone. The only difference I could think of is that when I heard the noise it was raining and the road was wet. Could it be the wet road noise? Anyone has similar experience? Thanks!

firepa63 · 10-30-2009, 03:17 PM

Yes, it's wet road noise and water splashing up underneath the car. It's normal. I had the same thing on my '04 and have it with my '09.

10-30-2009, 01:47 PM	#1
2009Prius Senior Member Join Date: Mar 2009 Location: USA Posts: 437 My Car: 2009 Prius Model: Package: #2 Thanks: 246 Thanked 20 Times in 19 Posts Friends: 19	Wind/fan noise from the back when road is wet? A few days ago I heard a noise coming from the back of the car that sounds very similar to the wind noise when a window is open. But all windows were closed and I confirmed it wasn't the radio. I opened and closed all windows the noise was still there. It was not there when the car was not moving. The noise also sounded like air going through a vent. I checked the high battery temperature with ScanGauge. It was only 19C (66F) and I have never heard the battery fan coming on even during the hot summer. I checked all glass and none was broken or cracked. Now the noise is gone. The only difference I could think of is that when I heard the noise it was raining and the road was wet. Could it be the wet road noise? Anyone has similar experience? Thanks!

10-30-2009, 03:17 PM	#2
firepa63 Senior Citizen Join Date: Jul 2005 Location: SE Pennsylvania Posts: 928 My Car: 2009 Prius Model: Package: #5 Thanks: 0 Thanked 43 Times in 39 Posts Friends: 0	Re: Wind/fan noise from the back when road is wet? Yes, it's wet road noise and water splashing up underneath the car. It's normal. I had the same thing on my '04 and have it with my '09.

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