{"id":7317,"date":"2021-01-02T14:21:56","date_gmt":"2021-01-02T19:21:56","guid":{"rendered":"https:\/\/techlinkfrench.mynetworkcontent.com\/?p=7317"},"modified":"2021-03-02T14:56:07","modified_gmt":"2021-03-02T19:56:07","slug":"problemes-de-changement-de-rapport-de-boite-de-vitesses","status":"publish","type":"post","link":"https:\/\/gm-techlinkfrench.com\/?p=7317","title":{"rendered":"Probl\u00e8mes de changement de rapport de bo\u00eete de vitesses"},"content":{"rendered":"<p>Certains mod\u00e8les Silverado et Sierra 2020, \u00e9quip\u00e9s de la bo\u00eete de vitesses automatique \u00e0 8\u00a0rapports (EFC\u00a0MQE) peuvent rencontrer un probl\u00e8me de patinage, de changement de rapport incorrect ou de passage par d\u00e9faut sur un seul rapport. Le code d&#8217;anomalie P0796 (\u00e9lectrovanne 3 de commande de bo\u00eete de vitesses bloqu\u00e9e hors fonction) peut \u00e9galement \u00eatre m\u00e9moris\u00e9.<\/p>\n<p>Si ces probl\u00e8mes se pr\u00e9sentent, le carter d&#8217;huile de bo\u00eete de vitesses doit \u00eatre d\u00e9pos\u00e9 et examin\u00e9 en recherchant des d\u00e9bris. (Fig. 20) Si le carter est propre, remplacer le corps de soupape de commande.<\/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\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" 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\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 20<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>S&#8217;il se trouve des traces de mati\u00e8re d&#8217;embrayage d\u00e9faillant, la bo\u00eete de vitesses doit \u00eatre d\u00e9pos\u00e9e et examin\u00e9e. Effectuer une comparaison des co\u00fbts, afin de d\u00e9terminer si la bo\u00eete de vitesses doit \u00eatre r\u00e9par\u00e9e ou remplac\u00e9e. Toute r\u00e9paration doit inclure le remplacement du corps de soupape de commande. (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\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" 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\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 21<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>CONSEIL :<\/strong> utiliser la douille Torx Plus pour corps de soupape DT-48285 afin de d\u00e9poser les 11 boulons de corps de soupape et l&#8217;ensemble de corps de soupape de la bo\u00eete de vitesses.<\/p>\n<p>Apr\u00e8s l&#8217;installation du corps de soupape de commande sur la bo\u00eete de vitesses, veiller \u00e0 effectuer la proc\u00e9dure d&#8217;apprentissage rapide de service. Sinon, les performances de la bo\u00eete de vitesses peuvent \u00eatre m\u00e9diocres.<\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Merci \u00e0 Terry Neuendorf<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Certains mod\u00e8les Silverado et Sierra 2020, \u00e9quip\u00e9s de la bo\u00eete de vitesses automatique \u00e0 8\u00a0rapports (EFC\u00a0MQE) peuvent rencontrer un probl\u00e8me de patinage, de changement de rapport incorrect ou de passage [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-7317","post","type-post","status-publish","format-standard","hentry","category-2021-jan"],"_links":{"self":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7317","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7317"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7317\/revisions"}],"predecessor-version":[{"id":7318,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7317\/revisions\/7318"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}