{"id":6424,"date":"2019-02-15T19:28:42","date_gmt":"2019-02-15T19:28:42","guid":{"rendered":"https:\/\/techlinkfrench.mynetworkcontent.com\/?p=6424"},"modified":"2019-03-15T19:39:42","modified_gmt":"2019-03-15T19:39:42","slug":"remplacement-du-contacteur-de-pression-du-liquide-a-transmission-cvt7","status":"publish","type":"post","link":"https:\/\/gm-techlinkfrench.com\/?p=6424","title":{"rendered":"Remplacement du contacteur de pression du liquide \u00e0 transmission CVT7"},"content":{"rendered":"<p>Un probl\u00e8me de rendement de bo\u00eete de vitesses peut se poser sur certains mod\u00e8les Spark 2014-2017 \u00e9quip\u00e9s de la bo\u00eete de vitesses automatique \u00e0 rapport variable en continu CVT7 (EFC M4M, MR8). (Fig. 12) Le t\u00e9moin MIL de v\u00e9rification du moteur peut \u00eatre allum\u00e9 et les codes d&#8217;anomalie P0871 (performance du syst\u00e8me de contacteur de pression du liquide \u00e0 transmission\u20093) et P2714 (\u00e9lectrovalve de commande de pression 4 bloqu\u00e9e hors fonction &#8211; Probl\u00e8me hydraulique\/m\u00e9canique) peuvent \u00eatre m\u00e9moris\u00e9s dans le module de commande de bo\u00eete de vitesses (TCM).<\/p>\n<p>Si les codes d&#8217;anomalie P0871 et 2714 sont m\u00e9moris\u00e9s dans le TCM, effacer les codes et effectuer un essai routier du v\u00e9hicule. Si les codes ne reviennent pas en m\u00e9moire, aucune r\u00e9paration ne doit \u00eatre effectu\u00e9e.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11208\" src=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2019\/02\/F12-2015-Chevrolet-Spark-001.jpg\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" srcset=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2019\/02\/F12-2015-Chevrolet-Spark-001.jpg 740w, https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2019\/02\/F12-2015-Chevrolet-Spark-001-300x200.jpg 300w, https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2019\/02\/F12-2015-Chevrolet-Spark-001-83x55.jpg 83w\" alt=\"\" width=\"740\" height=\"493\" \/><strong>Fig. 12<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Quand le code d&#8217;anomalie P0871 ou P2714 est m\u00e9moris\u00e9, le TCM commande le passage de bo\u00eete de vitesses auxiliaire en 2\u00e8me vitesse. Si les codes reviennent en m\u00e9moire apr\u00e8s l&#8217;essai routier, remplacer le contacteur de pression de liquide de bo\u00eete de vitesses. Se r\u00e9f\u00e9rer aux informations d&#8217;entretien appropri\u00e9es.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Remplacement du contacteur<\/strong><\/p>\n<p>Apr\u00e8s avoir d\u00e9pos\u00e9 le couvercle du corps de soupape de commande, d\u00e9poser la cr\u00e9pine de liquide du corps de soupape de commande et jeter le joint torique de la cr\u00e9pine de liquide. Un joint torique neuf doit \u00eatre install\u00e9 sur la cr\u00e9pine de liquide.<\/p>\n<p>Deux boulons de support de faisceau de contacteur de pression de liquide fixent le contacteur. D\u00e9brancher le connecteur du contacteur de pression de liquide pour d\u00e9poser le contacteur du corps de soupape de commande. (Fig. 13)<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11209\" src=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2019\/02\/F13-t-pressure-switch.png\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" srcset=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2019\/02\/F13-t-pressure-switch.png 400w, https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2019\/02\/F13-t-pressure-switch-300x200.png 300w, https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2019\/02\/F13-t-pressure-switch-83x55.png 83w\" alt=\"\" width=\"400\" height=\"266\" \/><strong>Fig. 13<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Lors du remontage du couvercle de corps de soupape de commande, ne pas r\u00e9utiliser le joint. Poser les 14\u00a0boulons de couvercle \u00e0 la main puis serrer tous les boulons conform\u00e9ment \u00e0 la sp\u00e9cification, dans l&#8217;ordre sp\u00e9cifi\u00e9. (Fig. 14)<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11210\" src=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2019\/02\/F14-t-control-valve-body-cover.jpg\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" srcset=\"https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2019\/02\/F14-t-control-valve-body-cover.jpg 740w, https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2019\/02\/F14-t-control-valve-body-cover-300x200.jpg 300w, https:\/\/techlink.mynetworkcontent.com\/wp-content\/uploads\/2019\/02\/F14-t-control-valve-body-cover-83x55.jpg 83w\" alt=\"\" width=\"740\" height=\"493\" \/><strong>Fig. 14<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Actuellement, le contacteur de pression de liquide de bo\u00eete de vitesses doit \u00eatre command\u00e9 au centre des pi\u00e8ces sous garantie (WPC). Consulter le document n\u00b0 PIP5521A pour le formulaire de commande n\u00e9cessaire et l&#8217;information suppl\u00e9mentaire.<\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Merci \u00e0 Terry Neuendorf<\/em><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un probl\u00e8me de rendement de bo\u00eete de vitesses peut se poser sur certains mod\u00e8les Spark 2014-2017 \u00e9quip\u00e9s de la bo\u00eete de vitesses automatique \u00e0 rapport variable en continu CVT7 (EFC [&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-6424","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/6424","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=6424"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/6424\/revisions"}],"predecessor-version":[{"id":6425,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/6424\/revisions\/6425"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6424"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6424"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6424"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}