Running water sound coming from dash

tchowe · 02-04-2016, 09:05 PM

I've noticed this from day one, and it's truly only audible at idle, but when the A/C is on it sounds like the trickle/flow of water through a pipe behind my dash, and the sound disappears when the A/C is turned off. Also the other day as I shut my car off a different sound of water going down a drain occurred. Does anybody else's sound like this and it could just be normal operation of the A/C?

I haven't heard this in any cars I've owned in the past, and when I had my car at the dealer for a different issue the mechanic told me that this was an acceptable "break in noise" by GM standards and it could just be air pushing through the system.

Seawolf · 02-04-2016, 11:42 PM

I get the same kind of water gurgling noise in my 2011 Nissan Frontier. It may indeed be normal, but hopefully some other Camaro owners will chime in.

2SSRS@Gen5diy · 02-05-2016, 09:33 AM

That was on the 5th gens to, but at the time was discovers to be a pinched drain line for the water, there was a fix for it at the dealers.

anukula · 10-23-2019, 02:14 PM

Reviving the old thread. I notice it more when idling. Other fellow owners??

Jaxcam02 · 10-23-2019, 02:40 PM

I've had this in my 15 Colorado, 17 Silverado, not yet in the 18 Camaro. What the consensus is over on GM-trucks.com, theres a GM service bulletin that calls it "normal" and the cause is air in the heater core. In the trucks the heater core it at a higher elevation than the radiator, which makes air getting trapped in the top of the heater core bends common. A fix is to park the vehicle where the front it elevated on a hill or on ramps. Turn the heat on full and let the car idle and fill the radiator as air purges out.

Now on the Camaro, im not sure but it seems like its likely.

Cechk01 · 10-24-2019, 08:12 AM

I get this after using the AC on a warmer day. it sounds like the refrigerant flowing to me.

Is the AC drain is clogged you will get water mist coming out of your vents and wet carpets.

anukula · 10-24-2019, 09:55 AM

its just that sound, water flowing around the dash. So others also have this? I had v6 before and i dont have this

arpad_m · 10-24-2019, 10:20 AM

Nope, no water flowing or dripping noise with my AC.

Biscuit.fr · 10-25-2019, 06:40 AM

I have the same sound from day1 on my 2017 ZL1.

02-04-2016, 09:05 PM	#1
tchowe Drives: 2017 V6 Camaro RS Join Date: Feb 2016 Location: Atlanta, GA Posts: 106	Running water sound coming from dash I've noticed this from day one, and it's truly only audible at idle, but when the A/C is on it sounds like the trickle/flow of water through a pipe behind my dash, and the sound disappears when the A/C is turned off. Also the other day as I shut my car off a different sound of water going down a drain occurred. Does anybody else's sound like this and it could just be normal operation of the A/C? I haven't heard this in any cars I've owned in the past, and when I had my car at the dealer for a different issue the mechanic told me that this was an acceptable "break in noise" by GM standards and it could just be air pushing through the system.

02-04-2016, 11:42 PM	#2
Seawolf Drives: Ordered:2SS HyperBlue/Ceramic White Join Date: May 2009 Location: Knoxville, TN Posts: 507	I get the same kind of water gurgling noise in my 2011 Nissan Frontier. It may indeed be normal, but hopefully some other Camaro owners will chime in. __________________ 2SS Hyper Blue/Ceramic White/White Pearl Rally Stripes/6 Speed/MRC/NPP/NAV/White Knee Pads/Illuminated Bowtie/56R Wheels 2/5/2016: Ordered -- '16 order never picked up... 4/28/2016: Ordered '17 5/3/2016: 2000.......5/31/2016: 3400 5/4/2016: 3000.......6/14/2016: 3800 5/9/2016: 3000.......6/15/2016: 4200 TPW 6/6/2016..........6/17/2016: 4300 5/25/2016: 3100......6/18/2016: 4200 5/28/2016: 3300......6/21/2016: 5000 ..............6/22/2016: 6000..............

10-23-2019, 02:40 PM	#5
Jaxcam02 Drives: 2017 Silverado/2017 ZL1 Join Date: Aug 2019 Location: Jax/Palatka FL Posts: 1,090	I've had this in my 15 Colorado, 17 Silverado, not yet in the 18 Camaro. What the consensus is over on GM-trucks.com, theres a GM service bulletin that calls it "normal" and the cause is air in the heater core. In the trucks the heater core it at a higher elevation than the radiator, which makes air getting trapped in the top of the heater core bends common. A fix is to park the vehicle where the front it elevated on a hill or on ramps. Turn the heat on full and let the car idle and fill the radiator as air purges out. Now on the Camaro, im not sure but it seems like its likely. Last edited by Jaxcam02; 10-23-2019 at 03:14 PM.

10-24-2019, 10:20 AM	#8
arpad_m Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017 Location: East Tennessee Posts: 11,605 View My Garage	Nope, no water flowing or dripping noise with my AC. __________________ 2018 Camaro 2SS — G7E MX0 NPP F55 IO6 735 rwhp \| 665 rwtq Magnuson TVS 2300 80mm pulley \| Kooks 1 7/8" LT headers \| JRE smooth idle terminator cam \| LT4 FS & injectors \| TSP forged pistons & rods JMS PowerMAX \| DSX flex fuel kit \| Roto-Fab CAI \| Soler 95mm LT5 TB \| 1LE wheels \| 1LE brakes \| BMR rear cradle lockout \| JRE custom tune 1100 - 1/30/18 \| 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 \| 3800 - 2/26/18 4300 - 2/27/18 \| 4B00 - 3/01/18 4200 - 3/05/18 \| 4800 - 3/14/18 5000 - 3/16/18 \| 6000 - 3/19/18

02-05-2016, 09:33 AM	#3
2SSRS@Gen5diy Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008 Location: By the lake in AZ Posts: 15,719 View My Garage	That was on the 5th gens to, but at the time was discovers to be a pinched drain line for the water, there was a fix for it at the dealers.

10-23-2019, 02:14 PM	#4
anukula Drives: Camaro 2ss Join Date: Jun 2018 Location: Austin Posts: 169	Reviving the old thread. I notice it more when idling. Other fellow owners??

10-24-2019, 08:12 AM	#6
Cechk01 Drives: 2016 Camaro 2SS M6 Join Date: Mar 2019 Location: Raleigh Posts: 56	I get this after using the AC on a warmer day. it sounds like the refrigerant flowing to me. Is the AC drain is clogged you will get water mist coming out of your vents and wet carpets.

10-24-2019, 09:55 AM	#7
anukula Drives: Camaro 2ss Join Date: Jun 2018 Location: Austin Posts: 169	its just that sound, water flowing around the dash. So others also have this? I had v6 before and i dont have this

10-25-2019, 06:40 AM	#9
Biscuit.fr Drives: Red hot ZL1 A10 2017 Join Date: Nov 2016 Location: MS Back to France (29) Posts: 804	I have the same sound from day1 on my 2017 ZL1.

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