Liquid sound
Thread Starter
Pro
Joined: Feb 2007
Posts: 608
Likes: 70
From: Richmond, VA
Liquid sound
On a couple of cool mornings now I've started my car and for several minutes while warming up there's a steady sound of liquid moving around coming from the firewall/engine area.
Any ideas?
Otherwise, 900 trouble free miles. Love this car!
Any ideas?
Otherwise, 900 trouble free miles. Love this car!
Former Vendor
Joined: Dec 2011
Posts: 780
Likes: 13
From: Salt Lake City Utah
St. Jude Donor '12
I haven't heard this noise in the C7 but it could also be the heater core and/or coolant as well. That was a common problem in the 5th Gen Camaros do to the heater hose design on early models.
Kind regards,
Jordan Priestley
888.308.6007
Kind regards,
Jordan Priestley
888.308.6007
Drifting
Joined: Jun 2007
Posts: 1,425
Likes: 238
From: Macomb MI
I noticed this too. More so as it's gotten colder out.
I found the link below with an explanation (and other helpful tidbits):
I found the link below with an explanation (and other helpful tidbits):
http://sandyblogs.com/techlink/?s=Corvette
Checking Engine Oil/Dry Sump Oil Tank Noise on Startup:
For an accurate reading of the dry sump lubrication system, check the oil level only after the engine has been thoroughly warmed up, after at least five minutes but no more than 15 minutes after engine shutoff.
*** Some customers may comment on a noise similar to running water from the dry sump oil tank when the engine is cold and started. This is a normal sound of oil returning to the tank.
Checking Engine Oil/Dry Sump Oil Tank Noise on Startup:
For an accurate reading of the dry sump lubrication system, check the oil level only after the engine has been thoroughly warmed up, after at least five minutes but no more than 15 minutes after engine shutoff.
*** Some customers may comment on a noise similar to running water from the dry sump oil tank when the engine is cold and started. This is a normal sound of oil returning to the tank.
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Burning Brakes
Joined: Mar 2013
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Let's go ahead and put this one to bed.
The noise is caused by oil returning to the dry sump oil tank. It is outlined in this Techlink from GM from back on 5 September...
Some customers may comment on a noise similar to running water from the dry sump oil tank when the engine is cold and started. This is a normal sound of oil returning to the tank.
Full page...
http://sandyblogs.com/techlink/?p=2333
By the way, there's also a bunch of other interesting tidbits in this article. It discusses the "perceived malalignment" of the lower door versus rocker panel that some have mentioned. It also discusses more fully how the NPP exhaust works in terms of its behavior...and more.
The noise is caused by oil returning to the dry sump oil tank. It is outlined in this Techlink from GM from back on 5 September...
Some customers may comment on a noise similar to running water from the dry sump oil tank when the engine is cold and started. This is a normal sound of oil returning to the tank.
Full page...
http://sandyblogs.com/techlink/?p=2333
By the way, there's also a bunch of other interesting tidbits in this article. It discusses the "perceived malalignment" of the lower door versus rocker panel that some have mentioned. It also discusses more fully how the NPP exhaust works in terms of its behavior...and more.
Last edited by Rad22; Nov 5, 2013 at 10:34 AM.