Uploaded April 2019 | Updated September 2026, 2 weeks ago

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Is your Chevy Silverado or GMC Sierra 4.3L equipped vehicle suffering from a common problem where there is a message on the divers information display stating that the Engine is hot and AC Turned Off? You may also have an illuminated check engine light and stored code P0128 as well as no operation of the HVAC air conditioning system. If so then this video will help guide you in diagnosing and repairing your truck.

Here is a link to the video of the cooling system refilling tool I mentioned: youtu.be/jlMlj3gGgRY

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