https://stream.echo6.co/videos/watch/1c49f4af-8e89-4024-b50a-afb539315505 In this video, I dig into a customer’s 2018 GMC Sierra 1500 that rolled in with the dreaded check engine light blazing on the dash. The scan tool shows a small EVAP system leak, so it’s time to break out the Avoca Smoka and track this pesky vapor leak down once and for all. Hit that subscribe button if you want more real-world diagnostics, tips, and behind-the-scenes shop work. -Enjoy! #GMCSierra #EVAPLeak #CheckEngineLight #AutoRepair #MechanicLife #CarDiagnostics #TruckRepair #P0442 Want to support us AND get early access to the SMA videos as they are uploaded? Consider joining the SMA "YouTube Membership" by clicking here: https://www.youtube.com/channel/UCtAGzm9e_liY7ko1PBhzTHA/join You are also able to support us on Patreon if you feel inclined to do so by clicking here: https://www.patreon.com/southmainauto CHECK OUT OUR "SMA SWAG" STORE! Go on Teespring and get your very own SMA merch! https://teespring.com/stores/the-sma-store If you don't like Patreon feel free to use the "PayPal Me" link: https://www.paypal.me/SouthMainAuto The South Main Auto Amazon Store: https://www.amazon.com/shop/southmainautorepairavoca AES Wave Automotive Diagnostic Tools: https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=2525b91fc8e906e8215984074c9d9e8f&go=https://www.aeswave.com/Miscellaneous-p9347.html Thank you so much for the support! --Eric & Vanessa O. Feel like sending some swag to SMA because you love the videos but don't know where to send it? Just ship it here: South Main Auto Repair 47 S. Main St PO Box 471 Avoca, NY 14809 Disclaimer: Due to factors beyond the control of South Main Auto Repair, we cannot guarantee against unauthorized modifications or improper use of the information provided in this video. South Main Auto Repair assumes no liability for property damage or personal injury resulting from the use of any tools, equipment, chemicals, lubricants, or information presented. We strongly recommend following safe practices when working with power tools, automotive lifts, jack stands, electrical equipment, blunt instruments, or any other tools and equipment shown or implied in this video. No information in this video creates any express or implied warranty or guarantees any particular result. Use this information responsibly and at your own risk. Mon, 13 Apr 2026 23:03:20 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/1c49f4af-8e89-4024-b50a-afb539315505 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.