{"id":14222,"date":"2021-01-14T14:51:19","date_gmt":"2021-01-14T19:51:19","guid":{"rendered":"https:\/\/gm-techlink.com\/?p=14222"},"modified":"2021-01-14T14:51:19","modified_gmt":"2021-01-14T19:51:19","slug":"transmission-shift-conditions","status":"publish","type":"post","link":"https:\/\/gm-techlink.com\/?p=14222","title":{"rendered":"Transmission Shift Conditions"},"content":{"rendered":"<p>Some 2020 Silverado and Sierra models equipped with the 8-speed automatic transmission (RPO MQE) may have a slipping or improper shifting condition or may have defaulted to only one gear. DTC P0796 (Transmission Control Solenoid Valve 3 Stuck Off) also may be set.<\/p>\n<p>If these conditions are present, the transmission oil pan should be removed and inspected for debris. (Fig. 20) If the pan is clean, replace the control valve body.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14217\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/01\/F20-trans-1.png\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/01\/F20-trans-1.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/01\/F20-trans-1-300x195.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/01\/F20-trans-1-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/01\/F20-trans-1-200x130.png 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><strong>Fig. 20<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>If there is evidence of failed clutch material, the transmission should be removed and inspected. Complete a cost comparison to determine if the transmission should be repaired or replaced. Any repairs should include the control valve body replacement. (Fig. 21)<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14218\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/01\/F21-trans-2.png\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/01\/F21-trans-2.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/01\/F21-trans-2-300x195.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/01\/F21-trans-2-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/01\/F21-trans-2-200x130.png 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><strong>Fig. 21<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>TIP: Use the DT-48285 Valve Body Torx Plus Socket to remove the 11 valve body bolts and the valve body assembly from the transmission.<\/p>\n<p>After installing the control valve body onto the transmission, be sure to perform the Service Fast Learn procedure. If not performed, it may result in poor transmission performance.<\/p>\n<p><em>&#8211; Thanks to Terry Neuendorf<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Some 2020 Silverado and Sierra models equipped with the 8-speed automatic transmission (RPO MQE) may have a slipping or improper shifting condition or may have defaulted to only one gear. [&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-14222","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/14222","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=14222"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/14222\/revisions"}],"predecessor-version":[{"id":14223,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/14222\/revisions\/14223"}],"wp:attachment":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14222"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14222"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}