{"id":7570,"date":"2021-06-28T16:23:14","date_gmt":"2021-06-28T20:23:14","guid":{"rendered":"https:\/\/techlinkfrench.mynetworkcontent.com\/?p=7570"},"modified":"2021-07-28T16:24:11","modified_gmt":"2021-07-28T20:24:11","slug":"passage-difficile-aux-rapports-inferieurs-et-superieurs","status":"publish","type":"post","link":"https:\/\/gm-techlinkfrench.com\/?p=7570","title":{"rendered":"Passage difficile aux rapports inf\u00e9rieurs et sup\u00e9rieurs"},"content":{"rendered":"<p>Un passage difficile au rapport inf\u00e9rieur 5-4 et au rapport sup\u00e9rieur 1-2 peut \u00eatre ressenti sur certains mod\u00e8les Colorado et Canyon 2017 \u00e9quip\u00e9s de la bo\u00eete de vitesses automatique 8L45 \u00e0 8 rapports (RPO M5T). Ces conditions de changement de rapports peuvent \u00eatre remarqu\u00e9es apr\u00e8s environ 40 000 km (25 000 miles) et ne peuvent \u00eatre pr\u00e9sentes que lorsque la temp\u00e9rature de la bo\u00eete de vitesses est sup\u00e9rieure \u00e0 environ 43\u00a0\u00b0C (110 \u00b0F). Sous ces temp\u00e9ratures, le changement de rapport de la bo\u00eete de vitesses est jug\u00e9 acceptable.<\/p>\n<p>Le passage difficile aux rapports inf\u00e9rieurs et sup\u00e9rieurs peut \u00eatre caus\u00e9 par une d\u00e9gradation progressive du ressort de rappel 2-3-4-6-8. Si c&#8217;est le cas, remplacer le piston 2-3-4-6-8 (fig. 8, no 526) et le ressort de rappel 2-3-4-6-8 (fig. 8, no 527).<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14920\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F08-shift-2.png\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F08-shift-2.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F08-shift-2-300x195.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F08-shift-2-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F08-shift-2-200x130.png 200w\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 8<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>En plus du remplacement du ressort de rappel et du piston, il faut resceller l&#8217;ensemble d&#8217;embrayage de marche arri\u00e8re 2-3-4-6-8 et 4-5-6-7-8 (fig. 9, no 60).<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14921\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F09-shift-3.png\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F09-shift-3.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F09-shift-3-300x195.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F09-shift-3-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F09-shift-3-200x130.png 200w\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 9<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Se reporter \u00e0 la proc\u00e9dure de retrait de l&#8217;ensemble d&#8217;embrayage de marche arri\u00e8re 2-3-4-6-8 et 4-5-6-7-8 ainsi qu&#8217;aux proc\u00e9dures de d\u00e9montage et de montage de l&#8217;embrayage de marche arri\u00e8re 2-3-4-6-8 et 4-5-6-7-8 dans les informations d&#8217;entretien appropri\u00e9es. Utiliser les outils sp\u00e9ciaux n\u00e9cessaires et remplacer les pi\u00e8ces de fixation et les autres pi\u00e8ces \u00e0 usage unique pendant la r\u00e9paration.<\/p>\n<p><strong>CONSEIL\u00a0:<\/strong> Lors du montage de l&#8217;ensemble d&#8217;embrayage de marche arri\u00e8re, positionner le ressort de rappel du piston d&#8217;embrayage 2-3-4-6-8, le butoir du piston d&#8217;embrayage de marche arri\u00e8re 4-5-6-7-8 et le ressort de rappel du piston d&#8217;embrayage de marche arri\u00e8re 4-5-6-7-8 en respectant le sens qui a \u00e9t\u00e9 observ\u00e9 lors du retrait. De plus, il est conseill\u00e9 d&#8217;installer les anneaux de retenue du piston d&#8217;embrayage 2-3-4-6-8 et du piston d&#8217;embrayage de marche arri\u00e8re 4-5-6-7-8 sans les serrer avant d&#8217;installer l&#8217;outil (fig. 10).<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14922\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F10-shift-reverse-clutch-assembly-4.png\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F10-shift-reverse-clutch-assembly-4.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F10-shift-reverse-clutch-assembly-4-300x195.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F10-shift-reverse-clutch-assembly-4-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/06\/F10-shift-reverse-clutch-assembly-4-200x130.png 200w\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 10<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Suivre la proc\u00e9dure de mesure de l&#8217;anneau de retenue pour d\u00e9terminer celui qui convient \u00e0 la plaque d&#8217;appui d&#8217;embrayage.<\/p>\n<p>Se reporter au bulletin n\u00b0 21-NA-076 pour en savoir plus et conna\u00eetre les num\u00e9ros de pi\u00e8ces.<\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Merci \u00e0 Mark Gordon<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un passage difficile au rapport inf\u00e9rieur 5-4 et au rapport sup\u00e9rieur 1-2 peut \u00eatre ressenti sur certains mod\u00e8les Colorado et Canyon 2017 \u00e9quip\u00e9s de la bo\u00eete de vitesses automatique 8L45 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39],"tags":[],"class_list":["post-7570","post","type-post","status-publish","format-standard","hentry","category-2021-june"],"_links":{"self":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7570","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=7570"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7570\/revisions"}],"predecessor-version":[{"id":7571,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7570\/revisions\/7571"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7570"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7570"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7570"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}