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Last Updated: September 28, 2026
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Your diesel is refusing to start on a freezing morning because the intake air heater circuit is failing. I explain how this metal grid ... Cold mornings can be tough on diesel Is your diesel truck struggling on chilly mornings and guzzling fuel out of nowhere. You need to know how to fix ⚠️ Error Code: P0640 - Intake Air Heater Malfunction. This code indicates that the PCM detects a problem in the circuit that ... The video focuses on the basic Chevrolet specific diagnostic
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