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Heater Core Leak

Old Sep 20, 2025 | 2:02 PM
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GasGuzzler's Avatar
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Default Heater Core Leak

I have a 2007 Suburban 1500 LS.

I believe I have a leak where the coolant lines go in through the firewall to the heater corer. I can see a drip from the out-board (right side of the vehicle) line.

Before I get in to trying to remove and replace it, does anyone know of a good video showing how to do it? Any tricks I should know about?

Last edited by GasGuzzler; Sep 20, 2025 at 2:07 PM.
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