Скачать или смотреть Tech Tip: How to Diagnose Overheating with Thermodynamics and Data

Modern engine overheating issues aren’t always caused by a bad radiator. In this Tech Tip, Motor Age technical and multimedia content director Erik Screeden demystifies the thermodynamics behind today’s cooling systems and offers a diagnostic approach every technician should master.

Learn why radiators rely on more than just coolant and airflow, and how factors like ambient temperature, fan performance, coolant flow, stack contamination, system design and engine load all affect heat transfer. You’ll discover how improperly functioning fans, stuck grille shutters, dirty condensers or even air pockets can sabotage cooling, even with a brand new radiator.

Erik walks you through a comprehensive diagnostic process using thermal imaging, scan tools and surface temperature readings to pinpoint whether the real culprit is airflow, coolant flow, system blockage or environmental overload. He also explains why a radiator might be undersized for the vehicle’s demands, especially under high-stress conditions like towing, stop-and-go traffic or extreme heat.

If you’ve ever replaced a radiator only to have the vehicle still overheat, this video is for you. Watch the full segment to gain critical insights and practical steps that go beyond parts replacement, giving you the knowledge to solve tough cooling issues with confidence.

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Due to factors beyond the control of Endeavor Business Media, it cannot guarantee against unauthorized modifications of this information or improper use of this information. Endeavor Business Media assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Endeavor Business Media recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of Endeavor Business Media, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not Endeavor Business Media.

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