{"id":12493,"date":"2020-01-16T11:46:34","date_gmt":"2020-01-16T16:46:34","guid":{"rendered":"https:\/\/techlink.mynetworkcontent.com\/?p=12493"},"modified":"2020-01-16T11:46:34","modified_gmt":"2020-01-16T16:46:34","slug":"rear-fuel-tank-and-fuel-transfer-conditions","status":"publish","type":"post","link":"https:\/\/gm-techlink.com\/?p=12493","title":{"rendered":"Rear Fuel Tank and Fuel Transfer Conditions"},"content":{"rendered":"<p>Some 2015-2018 Silverado and Sierra models and 2019 Silverado 2500\/3500 and Sierra 2500\/3500 models equipped with the 6.6L Duramax diesel engine (RPOs LML, L5P) and dual fuel tanks (23.5 gallon\/89 liter front tank and 40 gallon\/151 liter rear tank) (RPO N2N) may have poor fuel transfer or the rear fuel tank may have collapsed. (Fig. 13)<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-12477\" src=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2020\/01\/F13-fuel-tank-1.png\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/01\/F13-fuel-tank-1.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/01\/F13-fuel-tank-1-300x195.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/01\/F13-fuel-tank-1-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/01\/F13-fuel-tank-1-200x130.png 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><strong>Fig. 13<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>These conditions may be caused by dirt and debris collecting on the top of the rear tank and plugging the vent (Fig. 14, #1), resulting in the fuel tank being pulled into a vacuum and bending the fuel tank fuel pump module. (Fig. 14, #2)<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-12478\" src=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2020\/01\/F14-fuel-tank-2.png\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/01\/F14-fuel-tank-2.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/01\/F14-fuel-tank-2-300x195.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/01\/F14-fuel-tank-2-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/01\/F14-fuel-tank-2-200x130.png 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><strong>Fig. 14<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>If these conditions are found, replace the fuel tank and fuel pump module. Refer to Fuel Tank Fuel Pump Module Replacement in the appropriate Service Information.<\/p>\n<p>In addition, to help prevent the vent from becoming plugged again, install a piece of fuel hose to the vent (Fig. 15, #1) and route it down the fuel feed line. (Fig. 15, #3) Secure the hose with zip ties. (Fig. 15, #2)<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-12479\" src=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2020\/01\/F15-fuel-tank-3.png\" alt=\"\" width=\"550\" height=\"356\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/01\/F15-fuel-tank-3.png 550w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/01\/F15-fuel-tank-3-300x194.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/01\/F15-fuel-tank-3-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/01\/F15-fuel-tank-3-200x130.png 200w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><strong>Fig. 15<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Refer to Bulletin #19-NA-277 for additional information and part numbers.<\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Thanks to Kevin Minor<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Some 2015-2018 Silverado and Sierra models and 2019 Silverado 2500\/3500 and Sierra 2500\/3500 models equipped with the 6.6L Duramax diesel engine (RPOs LML, L5P) and dual fuel tanks (23.5 gallon\/89 [&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-12493","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/12493","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=12493"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/12493\/revisions"}],"predecessor-version":[{"id":12494,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/12493\/revisions\/12494"}],"wp:attachment":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}