{"id":7346,"date":"2021-02-05T16:27:20","date_gmt":"2021-02-05T21:27:20","guid":{"rendered":"https:\/\/techlinkfrench.mynetworkcontent.com\/?p=7346"},"modified":"2021-04-07T14:11:18","modified_gmt":"2021-04-07T18:11:18","slug":"rate-cause-par-laffaissement-de-poussoir","status":"publish","type":"post","link":"https:\/\/gm-techlinkfrench.com\/?p=7346","title":{"rendered":"Rat\u00e9 caus\u00e9 par l&#8217;affaissement de poussoir"},"content":{"rendered":"<p>Certains mod\u00e8les Silverado, Sierra 2019-2021; Tahoe, Suburban, Yukon et Escalade 2021 \u00e9quip\u00e9s du moteur V8 de 5,3 L (EFC L84) ou du moteur V8 de 6,2 L (EFC L87) peuvent pr\u00e9senter un probl\u00e8me de rat\u00e9 et de tige de poussoir pli\u00e9e qui entra\u00eene l&#8217;affaissement d&#8217;un poussoir ou la rupture d&#8217;un poussoir. Les codes d&#8217;anomalie de rat\u00e9 P0300 \u2013 P0308 peuvent \u00eatre \u00e9tablis.<\/p>\n<p>Si le diagnostic des renseignements techniques r\u00e9v\u00e8le un poussoir affaiss\u00e9 ou la rupture d&#8217;un poussoir, il est recommand\u00e9 de remplacer le guide de poussoir de soupape et les quatre poussoirs (fig. 23). Il n&#8217;est pas n\u00e9cessaire de remplacer l&#8217;\u00e9lectrovanne r\u00e9gulatrice d&#8217;huile.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14358\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/02\/F23-lift-1.png\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/02\/F23-lift-1.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/02\/F23-lift-1-300x195.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/02\/F23-lift-1-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/02\/F23-lift-1-200x130.png 200w\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 23<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Prendre en note la position d&#8217;installation du guide de poussoir de soupape. La zone avec l&#8217;encoche du guide de poussoir s&#8217;aligne avec la languette de positionnement du bloc-moteur (fig. 24). Poser le guide de poussoir de soupape neuf et les poussoirs comme un ensemble.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14359\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/02\/F24-lift-2.png\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/02\/F24-lift-2.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/02\/F24-lift-2-300x194.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/02\/F24-lift-2-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/02\/F24-lift-2-200x130.png 200w\" alt=\"\" width=\"740\" height=\"479\" \/><strong>Fig. 24<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>L&#8217;\u00e9quipe d&#8217;ing\u00e9nierie de GM exige le retour de la pi\u00e8ce. S&#8217;assurer de marquer le guide pour indiquer l&#8217;emplacement du cylindre pour l&#8217;inspection. Ne pas couvrir le code de date.<\/p>\n<p>Pour plus de renseignements, se reporter au document PIP5776.<\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Merci \u00e0 Richard Renshaw<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Certains mod\u00e8les Silverado, Sierra 2019-2021; Tahoe, Suburban, Yukon et Escalade 2021 \u00e9quip\u00e9s du moteur V8 de 5,3 L (EFC L84) ou du moteur V8 de 6,2 L (EFC L87) peuvent [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-7346","post","type-post","status-publish","format-standard","hentry","category-2021-feb"],"_links":{"self":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7346","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=7346"}],"version-history":[{"count":2,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7346\/revisions"}],"predecessor-version":[{"id":7377,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7346\/revisions\/7377"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}