{"id":13109,"date":"2020-04-30T15:17:05","date_gmt":"2020-04-30T19:17:05","guid":{"rendered":"https:\/\/techlink.mynetworkcontent.com\/?p=13109"},"modified":"2020-04-30T15:17:05","modified_gmt":"2020-04-30T19:17:05","slug":"valve-body-assemblies-function-tested-before-shipping","status":"publish","type":"post","link":"https:\/\/gm-techlink.com\/?p=13109","title":{"rendered":"Valve Body Assemblies Function Tested Before Shipping"},"content":{"rendered":"<p class=\"western\"><span style=\"font-size: 12pt;\">When replacing a valve body assembly (Fig. 7) on an 8-speed or 10-speed automatic transmission or solenoid body assembly on a 9-speed automatic transmission, technicians may notice the service part arrives wet with residual transmission fluid from function testing.<\/span><\/p>\n<p class=\"western\">\n<p class=\"western\" style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-13069\" src=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2020\/04\/F07-24293258-Trans-valve-body-1.jpg\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/04\/F07-24293258-Trans-valve-body-1.jpg 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/04\/F07-24293258-Trans-valve-body-1-300x195.jpg 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/04\/F07-24293258-Trans-valve-body-1-85x55.jpg 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/04\/F07-24293258-Trans-valve-body-1-200x130.jpg 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><span style=\"font-size: 12pt;\"><b>Fig. 7<\/b><\/span><\/p>\n<p class=\"western\">\n<p class=\"western\"><span style=\"font-size: 12pt;\">The new parts should not be returned because they are wet with fluid from testing, which is a normal condition. (Fig. 8)<\/span><\/p>\n<p class=\"western\">\n<p class=\"western\" style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-13070\" src=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2020\/04\/F08-valve-body-IMG_8141.jpg\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/04\/F08-valve-body-IMG_8141.jpg 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/04\/F08-valve-body-IMG_8141-300x195.jpg 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/04\/F08-valve-body-IMG_8141-85x55.jpg 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/04\/F08-valve-body-IMG_8141-200x130.jpg 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><span style=\"font-size: 12pt;\"><b>Fig. 8<\/b><\/span><\/p>\n<p class=\"western\">\n<p class=\"western\"><span style=\"font-size: 12pt;\">The components go through a function testing procedure before being shipped. The solenoids are characterized through a wet test and, as a result, transmission fluid may collect in the shipping package. (Fig. 9)<\/span><\/p>\n<p class=\"western\">\n<p class=\"western\" style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-13071\" src=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2020\/04\/F09-valve-body-IMG_8142.jpg\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/04\/F09-valve-body-IMG_8142.jpg 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/04\/F09-valve-body-IMG_8142-300x195.jpg 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/04\/F09-valve-body-IMG_8142-85x55.jpg 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/04\/F09-valve-body-IMG_8142-200x130.jpg 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><span style=\"font-size: 12pt;\"><b>Fig. 9<\/b><\/span><\/p>\n<p class=\"western\">\n<p class=\"western\"><span style=\"font-size: 12pt;\"><b>Solenoid Characterization <\/b><\/span><\/p>\n<p class=\"western\"><span style=\"font-size: 12pt;\">The valve bodies feature control solenoid valves that are tested after assembly to determine the output fluid pressure at certain electrical values, referred to as solenoid current\/pressure data points. The solenoid valves are tested two ways, with an increasing and then a decreasing electrical current applied to the coil winding. The resultant current versus pressure data points are saved and assigned a file number, which is attached to the valve body or solenoid body. The file number of the entire valve body or solenoid body is printed on the assembly. The solenoid performance data file is stored on the TIS website. The data file is programmed and stored in the vehicle\u2019s Transmission Control Module (TCM). <\/span><\/p>\n<p class=\"western\"><span style=\"font-size: 12pt;\">The TCM must be programmed with either the new or existing solenoid valve performance data, depending on what component is replaced, in order to function at maximum efficiency. Reprogramming also ensures that the characteristic data relationship is properly matched between the solenoids, valve body, and transmission. <\/span><\/p>\n<p class=\"western\"><span style=\"font-size: 12pt;\">Replacing any of the following components requires the TCM to be programmed:<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 12pt;\">Transmission assembly \u2013 Program the TCM with the new data file stored on the TIS website for all pressure regulating solenoid valves. <\/span><\/li>\n<li><span style=\"font-size: 12pt;\">Lower control valve body assembly with solenoid valves \u2014 Program the TCM with the new data file stored on the TIS website for all pressure regulating solenoid valves. <\/span><\/li>\n<li><span style=\"font-size: 12pt;\">TCM \u2014 Program the TCM with the existing data file stored on the TIS website for all pressure regulating solenoid valves. <\/span><\/li>\n<\/ul>\n<p class=\"western\">\n<p class=\"western\"><span style=\"font-size: 12pt;\"><i>&#8211; Thanks to Colleen Diemer<\/i><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>When replacing a valve body assembly (Fig. 7) on an 8-speed or 10-speed automatic transmission or solenoid body assembly on a 9-speed automatic transmission, technicians may notice the service part [&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-13109","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/13109","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=13109"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/13109\/revisions"}],"predecessor-version":[{"id":13110,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/13109\/revisions\/13110"}],"wp:attachment":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13109"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}