{"podcast":{"title":"Diagnosing the Aftermarket A to Z","slug":"diagnosing-the-aftermarket-a-to-z-4411651","podcast_index_feed_id":4411651,"rss_url":"https://feeds.captivate.fm/mattfanslow/","website_url":"https://mattfanslow.captivate.fm/","image_url":"https://artwork.captivate.fm/44155d4e-35e8-49ad-aed7-25b6d5c15b8e/Matt-Fanslow-cover-art-ARPN-for-captivate.jpg","author":"Matt Fanslow","episode_count":249,"summary":"Matt Fanslow's Diagnosing the Aftermarket A to Z Podcast is a wide-open perspective on all aspects of the automotive aftermarket from a working diagnosticians' point of view. All topics and issues will be on the table.","last_synced_at":null,"page_url":"https://stenobird.com/podcast/diagnosing-the-aftermarket-a-to-z-4411651"},"episode":{"title":"Bubbles Everywhere: Cavitation and the Cooling System [E220]","slug":"bubbles-everywhere-cavitation-and-the-cooling-system-e220","published_at":"2026-01-21T04:15:00+00:00","page_url":"https://stenobird.com/podcast/diagnosing-the-aftermarket-a-to-z-4411651/bubbles-everywhere-cavitation-and-the-cooling-system-e220","show_page_url":"https://stenobird.com/podcast/diagnosing-the-aftermarket-a-to-z-4411651","url":"https://automotiverepairpodcastnetwork.com/bubbles-everywhere-cavitation-and-the-cooling-system-e220","audio_url":"https://episodes.captivate.fm/episode/8211dbf8-04d2-4889-a988-093e873743d8.mp3","summary":"Thanks to our Partner, Pico Technology Watch Full Video Episode Matt goes down a rabbit hole on the science of bubbles and comes back with something surprisingly practical: cavitation is a major source of cooling-system component damage , especially in and around water pumps. The “bad guy” isn’t the bubble forming—it’s the bubble collapsing , releasing intense localized energy, micro-jetting , and shock waves that pit and erode metal surfaces over time. The takeaway: approach cooling-system maintenance as anti-cavitation prevention , not just “keep it from overheating.” Key topics covered Why cavitation damage is often misattributed to electrolysis (and what’s actually happening) The real destruction mechanism: Bubble collapse → extreme localized heat (doesn’t “cook” the system, but signals energy density) Micro-jet stream through the collapsing bubble “donut” → pitting/erosion Shock wave effects (ties into why ultrasonic cleaning works) How bubbles form even in a pressurized cooling system Localized low-pressure zones behind an impeller blade Pressure drops along surfaces and restrictions (design or contamination-caused) Why “radiator cap” is a misleading name Better term: degassing cap It maintains system pressure (key to preventing local boiling) and “burps” gas/vapor out Coolant chemistry isn’t just freeze/boil protection The inhibitor package forms a protective barrier on internal surfaces that absorbs cavitation attack Over time that protection depletes → cavitation damage shows up Water quality matters more than most people think Minerals/impurities can create deposits → restrictions → pressure drop zones → bubbles Contamination can also become nucleation points for bubble formation Distilled/RO water or properly formulated premix is the safer play “Universal co…","meta_description":"Thanks to our Partner, Pico Technology Watch Full Video Episode Matt goes down a rabbit hole on the science of bubbles and comes back with something surpr…","key_points":[],"chapters":[],"topics":[],"duration_seconds":1198,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/diagnosing-the-aftermarket-a-to-z-4411651/episodes/bubbles-everywhere-cavitation-and-the-cooling-system-e220/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/diagnosing-the-aftermarket-a-to-z-4411651/bubbles-everywhere-cavitation-and-the-cooling-system-e220.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}