{"id":7202,"date":"2020-09-27T13:52:21","date_gmt":"2020-09-27T17:52:21","guid":{"rendered":"https:\/\/techlinkfrench.mynetworkcontent.com\/?p=7202"},"modified":"2020-10-27T13:56:11","modified_gmt":"2020-10-27T17:56:11","slug":"bruit-de-sifflement-du-differentiel-arriere","status":"publish","type":"post","link":"https:\/\/gm-techlinkfrench.com\/?p=7202","title":{"rendered":"Bruit de sifflement du diff\u00e9rentiel arri\u00e8re"},"content":{"rendered":"<p>Un sifflement, un bourdonnement ou un grincement peut \u00eatre perceptible sur certains mod\u00e8les Colorado et Canyon 2017-2019 pendant une acc\u00e9l\u00e9ration ou une d\u00e9c\u00e9l\u00e9ration lorsque le v\u00e9hicule passe de 32 km\/h (20 mi\/h) \u00e0 des vitesses de route. Il pourrait y avoir un probl\u00e8me d&#8217;usinage qui cr\u00e9\u00e9 un \u00e9paulement sur la surface dans l&#8217;al\u00e9sage du roulement de pont dans le carter de diff\u00e9rentiel arri\u00e8re. Les mod\u00e8les concern\u00e9s sont \u00e9quip\u00e9s du moteur diesel 2,8 L (EFC LWN) ou du moteur V6 de 3,6 L (EFC LGZ) et d&#8217;un rapport d&#8217;essieu arri\u00e8re de 3.42 (EFC GU6), et ont \u00e9t\u00e9 construits depuis le d\u00e9but de la production jusqu&#8217;au 17 juin 2019.<\/p>\n<p>En pr\u00e9sence de ces probl\u00e8mes, suivre les renseignements de diagnostic pour un bruit de diff\u00e9rentiel arri\u00e8re dans les renseignements techniques appropri\u00e9s. Si on d\u00e9termine que le bruit provient des roulements du pont de diff\u00e9rentiel arri\u00e8re, d\u00e9sassembler l&#8217;ensemble essieu et inspecter la surface de l&#8217;al\u00e9sage du roulement de pont dans le carter de diff\u00e9rentiel (fig. 18).<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-13664\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/09\/F18-diff-2.png\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/09\/F18-diff-2.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/09\/F18-diff-2-300x195.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/09\/F18-diff-2-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/09\/F18-diff-2-200x130.png 200w\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 18<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Si la surface de contact pr\u00e9sente des imperfections d&#8217;usinage ou un \u00e9paulement (fig. 19), remplacer l&#8217;ensemble essieu.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-13665\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/09\/F19-diff-1.png\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/09\/F19-diff-1.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/09\/F19-diff-1-300x195.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/09\/F19-diff-1-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2020\/09\/F19-diff-1-200x130.png 200w\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 19<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Si la surface de contact du roulement est exempte de toute imperfection, remplac\u00e9es uniquement les roulements du pont. S&#8217;assurer d&#8217;utiliser l&#8217;outil sp\u00e9cial d\u00e9sign\u00e9 indiqu\u00e9 dans les renseignements techniques afin de bien retirer et poser les roulements.<\/p>\n<p>Se reporter au bulletin n\u00b0 20-NA-034 pour en savoir plus et conna\u00eetre les num\u00e9ros de pi\u00e8ces.<\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Merci \u00e0 Tom Holecek<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un sifflement, un bourdonnement ou un grincement peut \u00eatre perceptible sur certains mod\u00e8les Colorado et Canyon 2017-2019 pendant une acc\u00e9l\u00e9ration ou une d\u00e9c\u00e9l\u00e9ration lorsque le v\u00e9hicule passe de 32 km\/h [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7202","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7202","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=7202"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7202\/revisions"}],"predecessor-version":[{"id":7203,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7202\/revisions\/7203"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}