![What is P1404 Engine Code [Quick Guide]](https://i.ytimg.com/vi/EpbJSBhUL98/mqdefault.jpg)
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Last Updated: September 28, 2026
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2001 Buick LeSabre Limited with "Service During this diagnosis of an EGR trouble Diagnose,location and replacement of EGR valve in a 19yr old Tahoe. There a tip/trick in this video too! I fixed this truck using ... Wanted to see if it was possible to get this stuck EGR valve unstuck and working again by cleaning it with my ultrasonic cleaner. the tools we used below. If the video was helpful, please give it a "thumbs up" and consider subscribing to the channel. Do you own a 2002-2003 Kia Spectra and are experiencing an illuminated check The video focuses on the basic Chevrolet specific diagnostic error
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