{"id":4675,"date":"2017-02-07T20:50:18","date_gmt":"2017-02-07T20:50:18","guid":{"rendered":"https:\/\/techlinkfrench.mynetworkcontent.com\/?p=4675"},"modified":"2017-06-08T15:09:14","modified_gmt":"2017-06-08T15:09:14","slug":"verification-des-pressions-de-vilebrequin","status":"publish","type":"post","link":"https:\/\/gm-techlinkfrench.com\/?p=4675","title":{"rendered":"V\u00e9rification des pressions de vilebrequin"},"content":{"rendered":"<p>Certains mod\u00e8les Encore et Cruze 2016-2017 \u00e9quip\u00e9s du moteur 1.4 L (EFC LE2) et mod\u00e8les Malibu et Volt 2016-2017 \u00e9quip\u00e9s du moteur 1.5 L (EFC LFV, L3A) peuvent pr\u00e9senter une fuite d&#8217;huile moteur au niveau de la bague d&#8217;\u00e9tanch\u00e9it\u00e9 d&#8217;huile arri\u00e8re de vilebrequin. Les pression de vilebrequin positive et n\u00e9gative hors de la plage de fonctionnement normale, en raison d&#8217;une restriction dans n&#8217;importe lequel des composants du syst\u00e8me d&#8217;induction, peut causer la fuite du joint d&#8217;\u00e9tanch\u00e9it\u00e9 d&#8217;huile.<\/p>\n<p>&nbsp;<\/p>\n<p>Lors de la v\u00e9rification des fuites d&#8217;huile, v\u00e9rifier la pr\u00e9sence de pressions de vilebrequin positive ou n\u00e9gative en utilisant le testeur du syst\u00e8me des \u00e9missions \u00e9vaporatives (EEST), J-41413. (Fig. 11) L&#8217;EEST doit \u00eatre branch\u00e9 \u00e0 l&#8217;orifice de jauge d&#8217;huile moteur.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4658\" src=\"http:\/\/sandyblogs.com\/techlink_french\/wp-content\/uploads\/2017\/06\/F11-EEST.png\" alt=\"F11 EEST\" width=\"600\" height=\"510\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/06\/F11-EEST.png 600w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/06\/F11-EEST-300x255.png 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>Brancher le testeur alors que le moteur est \u00e9teint, puis d\u00e9marrer le moteur ou enregistrer la lecture de pression. Les lectures de pression de carter moteur normales pour le moteur 1.4 L (LE2) et le moteur 1.5 L (LFV, L3A) se situent entre -1 et -5 pouces d&#8217;eau en position de stationnement (P) et en marche au ralenti \u00e0 chaud (Fig. 12).<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><strong><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4659\" src=\"http:\/\/sandyblogs.com\/techlink_french\/wp-content\/uploads\/2017\/06\/F12-normal-reading.png\" alt=\"F12 normal reading\" width=\"600\" height=\"613\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/06\/F12-normal-reading.png 600w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/06\/F12-normal-reading-294x300.png 294w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/strong><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 12<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Si la pression de vilebrequin ne se situe pas dans la plage appropri\u00e9e, suivre les diagnostics dans les renseignements d&#8217;entretien appropri\u00e9s.<\/p>\n<p>&nbsp;<\/p>\n<p>Si la pression du vilebrequin est excessivement positive, au-del\u00e0 de 0 po d&#8217;eau (0 po de HG\/aspiration), prendre note des lectures de fuite de cylindre et v\u00e9rifier s&#8217;il existe un fonctionnement inad\u00e9quat du couvercle d&#8217;arbre \u00e0 cames.<\/p>\n<p>&nbsp;<\/p>\n<p>Si la pression du vilebrequin est excessivement n\u00e9gative, sous -16 pouces d&#8217;eau (-1 pouces de HG\/aspiration), v\u00e9rifier la pr\u00e9sence de toute restriction dans l&#8217;induction d&#8217;air dans le conduit d&#8217;admission d&#8217;air avant au bo\u00eetier de filtre \u00e0 air ou dans le bo\u00eetier de filtre \u00e0 air. V\u00e9rifier la pr\u00e9sence de tout mat\u00e9riau infiltr\u00e9, toute intrusion d&#8217;eau, un tuyau de recyclage des gaz d&#8217;\u00e9chappement (PCV) pli\u00e9 ou des modifications au syst\u00e8me d&#8217;induction d&#8217;air.<\/p>\n<p>&nbsp;<\/p>\n<p>Proc\u00e9der \u00e9galement \u00e0 une inspection de la conduite de sortie de filtre \u00e0 air pour y d\u00e9celer un orifice de mise \u00e0 l&#8217;air libre de recyclage des gaz d&#8217;\u00e9chappement (PCV) bloqu\u00e9. (Fig. 13, #1) Un orifice ferm\u00e9e peut causer une pression de vilebrequin n\u00e9gative excessive. Si l&#8217;orifice est bloqu\u00e9, remplacer l&#8217;ensemble de couvercle d&#8217;arbre \u00e0 cames et tester de nouveau pour s&#8217;assurer d&#8217;une pression de vilebrequin ad\u00e9quate.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4660\" src=\"http:\/\/sandyblogs.com\/techlink_french\/wp-content\/uploads\/2017\/06\/F13-blocked-pcv.png\" alt=\"F13 blocked pcv\" width=\"600\" height=\"451\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/06\/F13-blocked-pcv.png 600w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/06\/F13-blocked-pcv-300x226.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 13<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Merci \u00e0 Raymond Haglund<\/em><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Certains mod\u00e8les Encore et Cruze 2016-2017 \u00e9quip\u00e9s du moteur 1.4 L (EFC LE2) et mod\u00e8les Malibu et Volt 2016-2017 \u00e9quip\u00e9s du moteur 1.5 L (EFC LFV, L3A) peuvent pr\u00e9senter une [&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-4675","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/4675","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=4675"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/4675\/revisions"}],"predecessor-version":[{"id":4676,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/4675\/revisions\/4676"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4675"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4675"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4675"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}