Fixing Secondary Air Injection System Issues on a 2007 Toyota Tundra | DIY Emissions Test Repair

Struggling to pass your emissions test due to a stuck air pump valve? In this video, I walk you through troubleshooting and fixing a seized bypass valve on my 2007 Toyota Tundra with a 4.7L V8 engine. This common problem often arises from a design flaw in the air pump system, causing water and rust to jam the valves. Watch as I demonstrate how to lubricate, free up, and test the valve to restore proper function. Whether you're dealing with P0418, P0419, or similar error codes, this step-by-step guide may help you avoid costly repairs and get your truck back on the road. Don't forget to subscribe for more automotive DIY tips!
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