{"id":14824,"date":"2021-05-27T15:08:43","date_gmt":"2021-05-27T19:08:43","guid":{"rendered":"https:\/\/gm-techlink.com\/?p=14824"},"modified":"2021-05-27T15:08:43","modified_gmt":"2021-05-27T19:08:43","slug":"damaged-camshaft-position-sensor-exciter-wheel","status":"publish","type":"post","link":"https:\/\/gm-techlink.com\/?p=14824","title":{"rendered":"Damaged Camshaft Position Sensor Exciter Wheel"},"content":{"rendered":"<p>There may be an intermittent extended crank or intermittent crank\/no start condition on some 2020-2021 Silverado, Sierra; and 2021 Tahoe, Suburban, Yukon, and Escalade models equipped with the 3.0L diesel engine (RPO LM2). DTC P0341 (Camshaft Position Sensor Performance) may be set in the Engine Control Module.<\/p>\n<p>If these conditions are present, the camshaft position sensor exciter wheel, or trigger wheel, may be damaged. (Fig. 12, #1) Remove the camshaft position sensor and use a bore scope to inspect for a bent exciter wheel on the camshaft. It will be necessary to roll the engine by hand, up to two revolutions, to inspect each wheel segment.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14805\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F12-cam-1.png\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F12-cam-1.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F12-cam-1-300x195.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F12-cam-1-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F12-cam-1-200x130.png 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><strong>Fig. 12<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Shown is a normal exciter wheel (Fig. 13, A) and a bent exciter wheel. (Fig. 13, B) The damaged wheel may or may not make contact with the timing chain.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14806\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F13-cam-2-C.png\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F13-cam-2-C.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F13-cam-2-C-300x195.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F13-cam-2-C-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F13-cam-2-C-200x130.png 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><strong>Fig. 13<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>If the camshaft position sensor exciter wheel is bent, it should be replaced. (Fig. 14) If the wheel is not damaged, follow the appropriate Service Information diagnostics for an intermittent crank\/no start condition.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14807\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F14-cam-4.png\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F14-cam-4.png 740w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F14-cam-4-300x195.png 300w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F14-cam-4-85x55.png 85w, https:\/\/gm-techlink.com\/wp-content\/uploads\/2021\/05\/F14-cam-4-200x130.png 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><strong>Fig. 14<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>For more information, refer to #PIP5806.<\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Thanks to Robert Bastien<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>There may be an intermittent extended crank or intermittent crank\/no start condition on some 2020-2021 Silverado, Sierra; and 2021 Tahoe, Suburban, Yukon, and Escalade models equipped with the 3.0L diesel [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[86],"tags":[],"class_list":["post-14824","post","type-post","status-publish","format-standard","hentry","category-2021-may-b"],"_links":{"self":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/14824","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=14824"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/14824\/revisions"}],"predecessor-version":[{"id":14825,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/14824\/revisions\/14825"}],"wp:attachment":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}