2013 Malibu overheating issue 

Thanks for the info

Never had a heating issue with my 2015 Malibu sits @262k+ miles But as preventative maintenance I have done 3 coolant flushes in the 8 yrs of ownership but it’s useful information thanks for the video

Thank you for sharing this. I went to dealership and paid $1500 for hose change, and still have problem with Coolant leaking.

What if the reservoir is bubbling with it running. Stops when the heater is on but the heater doesn’t blow hot hair?

I'm having this issue now on my girl's car. It does look like the Tee connector is the issue, didn't think to check reservoir because it seems to be shooting directly from the bottom of that tee outward onto the engine

My 2015 Chevy Malibu 2.5 ecotec engine it’s overheating and when I turn on the heater inside the car it’s not working