New and Strange Noise above 4000 RPM
#1
08-18-2010, 09:29 AM
Join Date: Jun 2009
Location: Chicago
Posts: 55
Rep Power: 17 
New and Strange Noise above 4000 RPM
I've searched the forums and haven't come up with anything so I thought I'd start a new thread to see if anyone has any thoughts.
This past sunday, returning from a mini-road trip, I noticed that when I pushed the engine past 4000 rpm, I heard a hissing sound in the cabin coming from the passengers side of the engine.
I didnt drive the car again until last night. This time with the windows down and sun roof open, I heard what I would describe as a whirring noise above 4000 RPM coming from the passenger's side of the engine, but this time it was much louder (as the windows were open). So I kept it under 4000 rpm the rest of the drive.
The car is an 06 C2 with PSE and has 18,000 miles.
Any advice is appreciated.
This past sunday, returning from a mini-road trip, I noticed that when I pushed the engine past 4000 rpm, I heard a hissing sound in the cabin coming from the passengers side of the engine.
I didnt drive the car again until last night. This time with the windows down and sun roof open, I heard what I would describe as a whirring noise above 4000 RPM coming from the passenger's side of the engine, but this time it was much louder (as the windows were open). So I kept it under 4000 rpm the rest of the drive.
The car is an 06 C2 with PSE and has 18,000 miles.
Any advice is appreciated.
#2
08-18-2010, 01:27 PM
Registered User
Join Date: Jul 2007
Location: Natick, MA
Age: 50
Posts: 3,122
Rep Power: 161 
I've searched the forums and haven't come up with anything so I thought I'd start a new thread to see if anyone has any thoughts.
This past sunday, returning from a mini-road trip, I noticed that when I pushed the engine past 4000 rpm, I heard a hissing sound in the cabin coming from the passengers side of the engine.
I didnt drive the car again until last night. This time with the windows down and sun roof open, I heard what I would describe as a whirring noise above 4000 RPM coming from the passenger's side of the engine, but this time it was much louder (as the windows were open). So I kept it under 4000 rpm the rest of the drive.
The car is an 06 C2 with PSE and has 18,000 miles.
Any advice is appreciated.
This past sunday, returning from a mini-road trip, I noticed that when I pushed the engine past 4000 rpm, I heard a hissing sound in the cabin coming from the passengers side of the engine.
I didnt drive the car again until last night. This time with the windows down and sun roof open, I heard what I would describe as a whirring noise above 4000 RPM coming from the passenger's side of the engine, but this time it was much louder (as the windows were open). So I kept it under 4000 rpm the rest of the drive.
The car is an 06 C2 with PSE and has 18,000 miles.
Any advice is appreciated.
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