[fl38583_3193]

my 2014 has always used coolant. I fixed the inlet housing and bypass hoses. But it still uses coolant with no puddles. The pressure tank is a good place to start. I also noticed someone had an over heating issue, when I experienced this it was not showing on the gauge but the thermostat was actually stuck open triggering the AC code and over heat massage because it took to long to get warmed up -GM wants you to bring it to the shop for the simple repairs so they have that message for hot of cold coolant temperatures. I would look at the temperature senor if it shows on the gauge. Good luck on the coolant leak but the dealer will replace part even if it is not the real problem. I would look at the tank and the plastic inlet to the engine. The plastic assembly is about 90 dollars two years ago, tank I do not know, the bypass hose was $45 dollar also two years ago. I keep coolant in my trunk with this car.
best of luck.

 

[Champagne Jam]

Look at the coolant input plastic monstrosity at the back of the engine. It has multiple hoses and a coolant sensor on it. Located just above the transmission. You may see some coolant pooled in nooks and crannies there. I am on my third one at 82k miles. The replacements suck just as bad as the original one. You can get the billet one for a permanent fix, spendy though. Holy cow! I just found an aluminum replacement. I wish I had seen this a month ago! https://www.amazon.com/Engine-Coolant-Housing-Outlet-Aluminum/dp/B0BCPJ1F3D

 

[fl38583_3193]

Champagne jam, thanks - that is cheaper the the plastic from the dealer plus it comes with the bypass hose. I am going to get one just to put in the trunk. Last time mine went I was at a stop light and the steam just started rolling out of my hood, i parked it real quick and less than 45 minutes I had it replaced but I had no coolant in the trunk, I had to take a hike for that and found a 7/11 for over priced coolant. That a great deal. I got 133500 on mine right now but I was traveling 160 round trip for work a year ago for work. Less startups and stops. I know there an metal one someone on here found also but it was in the 190 dollar area no hoses with but the aluminum is a like material with the engine, the heat and expansion should be about the same.

 

[Spotty99]

my 2014 has always used coolant. I fixed the inlet housing and bypass hoses. But it still uses coolant with no puddles. The pressure tank is a good place to start. I also noticed someone had an over heating issue, when I experienced this it was not showing on the gauge but the thermostat was actually stuck open triggering the AC code and over heat massage because it took to long to get warmed up -GM wants you to bring it to the shop for the simple repairs so they have that message for hot of cold coolant temperatures. I would look at the temperature senor if it shows on the gauge. Good luck on the coolant leak but the dealer will replace part even if it is not the real problem. I would look at the tank and the plastic inlet to the engine. The plastic assembly is about 90 dollars two years ago, tank I do not know, the bypass hose was $45 dollar also two years ago. I keep coolant in my trunk with this car.
best of luck.

 

[Spotty99]

Thanks to everyone for reading and replying. I have an update but it's not much of an update. My son went back home (250 miles or so) after we decided we could not find any noticeable coolant leak. I test drove the car with my mom one day when I took her to the doctor and the check engine light came on. So I had them run the codes at Advance Auto and, to my slight surprise, it was to do with the fuel pump relay voltage, two codes. It reset after he pulled the codes and has not come back on again, so like the coolant, I'm not going to fix anything if it's not broken. I also saw how the car was holding good pressure in the cooling system because after I got it home I loosened the antifreeze cap on the reservoir tank and it hissed away at me with a good deal of pressure. My son's been checking the coolant but it hasn't gone down in nearly a week now, and everything is going just fine with the car. I'm still suggesting to him that he take it in for an alignment as I think it needs it after buying a new tire that was worn on the front driver side a bit more than the others. I'm going to make sure that he asks them about the check engine light and the coolant, and the dealer can make any kind of determination if they want to do anything under warranty, but of course the car is high miles and out of warranty now so this would have to be something covered under defects. Other than that the car is doing very well! I might not be coming back for a while because I'm not sure I can offer much assistance to anyone else seeing as I have not had to do much work on this car in the 118K miles that we've owned it since new.

 

[Knappy414]

In my cases (twice) it was the outlet water outlet. A gradually increasing hole was developing on the bottom and created the leak. I wanted to get the aluminum version off amazon but needed the car for work so opted for the plastic version from auto zone to be able to drive it the next day. Good luck.