LoveMyWheels
Posts: 3
Joined: Tue Aug 07, 2018 6:38 am

Gurgling sound of liquid running through pipes when charging

Tue Aug 07, 2018 7:09 am

I just bought a used 2015 Spark EV and love it so far. One thing concerns me: After I plugged in my L2 charger inside the garage for the first time I was surprised to hear the noise of fluid running through pipes. It's not a hissing sound, but rather a very noticeable gurgling sound as if there is liquid and air in the system. I assume this is the coolant for the on-board charger or battery being moved around. Is this sound normal? Do I have to have a dealer bleed the air out of the system somehow? Any guidance would be highly appreciated.

TheLondonBroiler
Posts: 179
Joined: Tue Oct 31, 2017 6:25 am

Re: Gurgling sound of liquid running through pipes when char

Tue Aug 07, 2018 9:15 am

To my knowledge, it's completely normal. That or my 2015 has the same "problem."
2015 Spark EV w/ DCFC 46,XXX miles
Purchased 1/20/18 w/ 16,5XX miles
2019 Bolt EV w/ DCFC 6,XXX miles
Purchased 3/16/19 w/ 87 miles

NORTON
Posts: 1212
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: Gurgling sound of liquid running through pipes when char

Tue Aug 07, 2018 9:17 am

I have never heard these sounds.

The most I have heard is the cooling fans coming on slowly and the AC compressor ramping up after plugging in on a hot day, after leaving the car unplugged most of the day.
Normally all I hear when I plug in is a few light clicks and clunks as relays (?) engage somewhere...

Are all the coolant reservoirs under your hood at a good level?
If so,, maybe a trip to the dealer might be worth the hassle... Good luck with that. :(
Used '14 2LT w/ DCFC.
+67 K miles. Mostly free electrons! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.

LoveMyWheels
Posts: 3
Joined: Tue Aug 07, 2018 6:38 am

Re: Gurgling sound of liquid running through pipes when char

Tue Aug 07, 2018 12:30 pm

Yes, all three cooling reservoirs under the hood show liquids at the level required by the owners manual.

Cheezecake
Posts: 5
Joined: Tue Aug 07, 2018 12:49 pm

Re: Gurgling sound of liquid running through pipes when char

Tue Aug 07, 2018 2:42 pm

I believe it is perfectly normal. I got my Spark a few weeks ago and heard the same exact sounds. This is what the manual states in section 1-16: "The charging system may run fans
and pumps that result in sounds from the vehicle while it is turned off."

MrDRMorgan
Posts: 947
Joined: Wed Oct 30, 2013 7:27 am
Location: Manteca, California

Re: Gurgling sound of liquid running through pipes when char

Tue Aug 07, 2018 3:48 pm

Cheezecake wrote:I believe it is perfectly normal. I got my Spark a few weeks ago and heard the same exact sounds. This is what the manual states in section 1-16: "The charging system may run fans
and pumps that result in sounds from the vehicle while it is turned off."
I hear that too. I think that is the sound of the battery coolant moving through the system. You may also hear a stepped whine which is the AC system cooling the coolant for the battery. Both noises are normal.

LoveMyWheels
Posts: 3
Joined: Tue Aug 07, 2018 6:38 am

Re: Gurgling sound of liquid running through pipes when char

Fri Aug 10, 2018 4:37 am

A big Thank You to all that responded. Seems what I have been experiencing is normal and I can stop worrying. :)
Last night I charged for the second time and the gurgling sound in the cooling system was much less. Maybe the first charging was so unusual, because the car was delivered by Carvana on a flatbed truck. When they unload, the ramp has quite an angle and the coolant may have shifted into odd places.
After 4 days I have to say this is a great little car!

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