{"id":4734,"date":"2017-03-18T14:54:55","date_gmt":"2017-03-18T14:54:55","guid":{"rendered":"https:\/\/techlinkfrench.mynetworkcontent.com\/?p=4734"},"modified":"2017-07-18T15:19:19","modified_gmt":"2017-07-18T15:19:19","slug":"bruits-de-cliquetis-sur-les-cylindres-de-gestion-active-de-carburant","status":"publish","type":"post","link":"https:\/\/gm-techlinkfrench.com\/?p=4734","title":{"rendered":"Bruits de cliquetis sur les cylindres de gestion active de carburant"},"content":{"rendered":"<p>Un cliquetis ou un cognement peut s&#8217;entendre sur certains mod\u00e8les ATS, CT6, CTS, Camara 2016-2017, LaCrosse, XT5, Colorado, Canyon et Acadia 2017 \u00e9quip\u00e9s du moteur 3.6 L (EFC LGX). Le moteur 3.6 L utilise la gestion active de carburant (AFM) pour \u00e9conomiser le carburant. Le cliquetis ou le cognement peut s&#8217;entendre en provenance des cylindres AFM. Les codes d&#8217;anomalie P0300 (rat\u00e9s de moteur d\u00e9tect\u00e9s), P0302 (rat\u00e9s d\u00e9tect\u00e9s du cylindre 2) ou P0305 (rat\u00e9s d\u00e9tect\u00e9s du cylindre 5) peuvent \u00eatre m\u00e9moris\u00e9s.<\/p>\n<p>&nbsp;<\/p>\n<p>Le cliquetis ou le cognement peut s&#8217;entendre en permanence, uniquement en charge ou de mani\u00e8re intermittente. Le son peut \u00eatre d\u00fb \u00e0 des dispositifs de r\u00e9glage de jeu hydraulique fixe spongieux (SHLA) (poussoirs) ou \u00e0 des doigts de galet de commutation (SRFF) endommag\u00e9s.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>CONSEIL :<\/strong> avant le d\u00e9montage d&#8217;un organe quelconque, enregistrer un fichier audio ou vid\u00e9o avec le bruit du moteur qui tourne. Le fichier peut s&#8217;av\u00e9rer n\u00e9cessaire lors du contact avec le centre d&#8217;assistance technique (TAC) ou peut \u00eatre demand\u00e9 par le service technique GM.<\/p>\n<p>&nbsp;<\/p>\n<p>Se reporter au bulletin n\u00b0 PIP5486 pour les consignes de diagnostic et de r\u00e9paration. Les \u00e9tapes de diagnostic doivent \u00eatre ex\u00e9cut\u00e9es dans l&#8217;ordre.<\/p>\n<p>&nbsp;<\/p>\n<p>Le diagnostic inclut la v\u00e9rification de l&#8217;absence de fuite des injecteurs et de la cause du bruit d\u00fb \u00e0 un carburant excessif dans un cylindre ainsi que l&#8217;examen d&#8217;une calamine excessive sur les tiges de soupape d&#8217;admission et le haut de la soupape.<\/p>\n<p>&nbsp;<\/p>\n<p>Si le bruit est toujours manifeste apr\u00e8s ces \u00e9tapes, v\u00e9rifier les dispositifs de r\u00e9glage de jeu hydraulique (SHLA) stationnaires mous ou spongieux. (Fig. 11)<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4742\" src=\"http:\/\/sandyblogs.com\/techlink_french\/wp-content\/uploads\/2017\/07\/F11-SHLA.jpg\" alt=\"F11 SHLA\" width=\"600\" height=\"345\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/07\/F11-SHLA.jpg 600w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/07\/F11-SHLA-300x173.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 11<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Il peut aussi s&#8217;av\u00e9rer n\u00e9cessaire d&#8217;examiner les doigts de galet de commutation (SRFF) en recherchant des d\u00e9g\u00e2ts, tels qu&#8217;une goupille de verrouillage bloqu\u00e9e ou un ressort de torsion endommag\u00e9. (Fig. 12) Si l&#8217;un des SRFF est endommag\u00e9, remplacer les quatre organes du cylindre concern\u00e9s.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4737\" src=\"http:\/\/sandyblogs.com\/techlink_french\/wp-content\/uploads\/2017\/07\/F12-SRFF.png\" alt=\"F12 SRFF\" width=\"600\" height=\"332\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/07\/F12-SRFF.png 600w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/07\/F12-SRFF-300x166.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 12<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Merci \u00e0 Aron Wilson<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un cliquetis ou un cognement peut s&#8217;entendre sur certains mod\u00e8les ATS, CT6, CTS, Camara 2016-2017, LaCrosse, XT5, Colorado, Canyon et Acadia 2017 \u00e9quip\u00e9s du moteur 3.6 L (EFC LGX). Le [&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-4734","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/4734","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=4734"}],"version-history":[{"count":3,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/4734\/revisions"}],"predecessor-version":[{"id":4744,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/4734\/revisions\/4744"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4734"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4734"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}