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aircheckvalve.jpg Secondary Air Check Valve If this valve fails, hot exhaust can blow into the 2ndry air system, melting plastic & possibly starting fires. Before madly ripping out all the emissions systems on your vehicle, read [url=http://www.fourdoorbronco.com/board/showthread.php?5427-Emissions-Systems]this article[/url]. See also: [url=https://www.supermotors.net/registry/media/1167873][img]https://www.supermotors.net/getfile/1167873/thumbnail/secondaryairvalves.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/589993][img]https://www.supermotors.net/getfile/589993/thumbnail/secondaryair.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/320809][img]https://www.supermotors.net/getfile/320809/thumbnail/xtubenew.jpg[/img][/url]
aircheckvalve.jpg | Hits: 12298 | Posted on: 10/9/05 | View original size (24.4 KB)

Secondary Air Check Valve
If this valve fails, hot exhaust can blow into the 2ndry air system, melting plastic & possibly starting fires.

Before madly ripping out all the emissions systems on your vehicle, read this article.

See also:
. .