Heater core has a leak?

2015 GMC TERRAIN
140,000 MILES • 6 CYL • 4WD • AUTOMATIC
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RANDYROCKHOLT
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How to access the heater core.
Dec 6, 2024 at 11:42 AM
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JACOBANDNICKOLAS
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To access the heater core on this vehicle is a somewhat big job. The HVAC evaporator and blower module assembly needs to be removed first.

To do that, you will need to drain the coolant, recover the AC freon from the system, remove the ac evaporator, and the dash carrier assembly.

If you look below, I attached the directions. Take a look and let me know if you have questions.

Let me know.

Joe

See pics below.
Dec 6, 2024 at 7:10 PM