Strange noise....ideas?
Thread Starter
Instructor
Joined: Jul 2004
Posts: 230
Likes: 0
From: Bergen County New Jersey
Strange noise....ideas?
Posting over in this section as well...
Hopefully someone knows what this is...getting a squealing noise from the car under acceleration. Sounds not quite like a belt, but close. It's almost a whistle. Sorry to be vague, it's very hard to describe. Like I said, it's only under acceleration, and only lasts for about 500 rpm of the band before I shift (around 2000-2500). Same thing happens in each gear after. I am not noticing any degradation of performance, no unusual rattling or shaking, so I'm at a loss. Checked exhaust bolts, any connections in the engine compartment, no luck. Any ideas?
Hopefully someone knows what this is...getting a squealing noise from the car under acceleration. Sounds not quite like a belt, but close. It's almost a whistle. Sorry to be vague, it's very hard to describe. Like I said, it's only under acceleration, and only lasts for about 500 rpm of the band before I shift (around 2000-2500). Same thing happens in each gear after. I am not noticing any degradation of performance, no unusual rattling or shaking, so I'm at a loss. Checked exhaust bolts, any connections in the engine compartment, no luck. Any ideas?
Drifting
Joined: Jan 2002
Posts: 1,498
Likes: 3
From: Sacramento CA
You may be hearing the air going into your throtle body. I have a Halltech TRAP and I can hear it whisltle on occasion. It happens when accelerating and some times when I rev it a little while stoped.
Melting Slicks
Joined: Mar 1999
Posts: 3,326
Likes: 0
From: Taylor TX
NCM Sinkhole Donor
Could likely be the serpentine belt. It's cheap & easy to replace - and I would replace it with a Goodyear Gatorback belt because it is quieter than stock.
A bad idler pulley was also common in early years (97-99). That's also easy to swap but a little more money.
Beyond that, it could be any rotating component. Maybe a water pump going out, maybe alternator, who knows. Take it one step at a time, but try the cheap stuff first.
A bad idler pulley was also common in early years (97-99). That's also easy to swap but a little more money.
Beyond that, it could be any rotating component. Maybe a water pump going out, maybe alternator, who knows. Take it one step at a time, but try the cheap stuff first.
Instructor
Joined: Jun 2005
Posts: 110
Likes: 0
From: panhandle Florida
Whistle Noise From Intake Manifold/Throttle Body (Replace Intake Manifold)
This might be of some help if you're still looking for a possible cause/solution ...
http://www.corvetteactioncenter.com/....php?qstId=265
http://www.corvetteactioncenter.com/....php?qstId=265
Thread Starter
Instructor
Joined: Jul 2004
Posts: 230
Likes: 0
From: Bergen County New Jersey
Thanks to all for the info, I really appreciate it. I'm now pretty certain it may be the brakes, driver side front. Going to pull the wheel this weekend and check it out. If nothing obvious, into the shop we go. Thanks again.
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