{"id":9674,"date":"2018-04-29T11:22:12","date_gmt":"2018-04-29T15:22:12","guid":{"rendered":"https:\/\/techlink.mynetworkcontent.com\/?p=9674"},"modified":"2019-01-03T12:03:24","modified_gmt":"2019-01-03T17:03:24","slug":"white-powder-appearance-on-a-c-line","status":"publish","type":"post","link":"https:\/\/gm-techlink.com\/?p=9674","title":{"rendered":"White Powder Appearance on A\/C Line"},"content":{"rendered":"<p>The appearance of white powder below the air conditioning lines in the engine compartment may be noticeable on some 2017-2018 Colorado and Canyon models. (Fig. 8)<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9661\" src=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2018\/04\/F08-ac-line-powder-1.jpg\" alt=\"\" width=\"600\" height=\"514\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2018\/04\/F08-ac-line-powder-1.jpg 600w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2018\/04\/F08-ac-line-powder-1-300x257.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><strong>Fig. 8<\/strong><\/p>\n<p>The powder substance is not corrosion. It is most likely caused by flux build-up on the A\/C line during the supplier brazing process. (Fig. 09)<\/p>\n<p>Verify that there are not any leaks on the A\/C line and clean the flux build-up using a soft wire brush.<\/p>\n<p>Do not replace the A\/C lines for this condition. It is a cosmetic condition only.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9662\" src=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2018\/04\/F09-ac-line-powder-2.jpg\" alt=\"\" width=\"600\" height=\"460\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2018\/04\/F09-ac-line-powder-2.jpg 600w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2018\/04\/F09-ac-line-powder-2-300x230.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><strong>Fig. 9<\/strong><\/p>\n<p><em>&#8211; Thanks to Charles Hensley<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The appearance of white powder below the air conditioning lines in the engine compartment may be noticeable on some 2017-2018 Colorado and Canyon models. (Fig. 8) Fig. 8 The powder [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9674","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/9674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9674"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/9674\/revisions"}],"predecessor-version":[{"id":9675,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/9674\/revisions\/9675"}],"wp:attachment":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}