coolant question
Thread Starter
Instructor
Joined: Mar 2018
Posts: 183
Likes: 17
From: North Carolina
coolant question
Can't seem to find anything online but when I cold start the car ('13 GS M6) and drive away- after letting it warm up briefly- I distinctly hear a 'sloshing' sound near the center firewall.
Seems to do it as I start, then when rpm's climb a little it goes away. I does not do it again, only on the first cold start acceleration. Pink coolant seems a little low in the reservoir but no DIC indicators, etc.
Am I barking up the wrong tree by adding some coolant?
Seems to do it as I start, then when rpm's climb a little it goes away. I does not do it again, only on the first cold start acceleration. Pink coolant seems a little low in the reservoir but no DIC indicators, etc.
Am I barking up the wrong tree by adding some coolant?
Racer
Joined: Jul 2013
Posts: 351
Likes: 24
From: New York
You are correct it's coolant related but you just can't add coolant. You are hearing bubbles or air trapped in the system and you need to add coolant the correct way to burp all the air out of the cooling system. Let me know if you don't know the correct procedure.
Le Mans Master
Joined: May 2016
Posts: 7,106
Likes: 1,546
From: Florida
Can't seem to find anything online but when I cold start the car ('13 GS M6) and drive away- after letting it warm up briefly- I distinctly hear a 'sloshing' sound near the center firewall.
Seems to do it as I start, then when rpm's climb a little it goes away. I does not do it again, only on the first cold start acceleration. Pink coolant seems a little low in the reservoir but no DIC indicators, etc.
Am I barking up the wrong tree by adding some coolant?
Seems to do it as I start, then when rpm's climb a little it goes away. I does not do it again, only on the first cold start acceleration. Pink coolant seems a little low in the reservoir but no DIC indicators, etc.
Am I barking up the wrong tree by adding some coolant?
Off topic - you should be seeing orange coolant. Pink is a variation, but it is a Pentofrost variation that is used in some Euro cars. I use pink in one of my British cars, but you should be using orange (Dexcool is the default brand).
Last edited by BlindSpot; Jan 5, 2019 at 06:57 AM.
Safety Car
Joined: Jul 2013
Posts: 4,408
Likes: 3,485
From: Granada Hills CA
I agree. My '13 GS would make that sound occasionally - it didn't concern me since I thought it was related to the coolant or a/c refrigerant. Funny thing is that I had the coolant system flushed at 50,000 miles at the dealer and have not heard the sound since. So they did a nice job.
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Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
%
Airlift System
Most dealers use a tool called an "Airlift System" to pull a 26 lb vacuum on the cooling system, then a tube is placed in a bucket of coolant and sucked into the system without any air..This is the only way to fill the cooling system without having to burp the system a few times, and usually over a few days to get it right..I purchased an Airlift system 10 years ago and haven't had to burp a cooling system since, you just pull a vacuum, suck in the coolant, and your done, no air in the system to deal with...WW
Last edited by WW7; Jan 5, 2019 at 09:47 AM.
