{"id":13445,"date":"2020-07-22T14:40:04","date_gmt":"2020-07-22T18:40:04","guid":{"rendered":"https:\/\/techlink.mynetworkcontent.com\/?p=13445"},"modified":"2020-08-05T13:18:50","modified_gmt":"2020-08-05T17:18:50","slug":"harmonic-balancer-sliding-back-on-crankshaft","status":"publish","type":"post","link":"https:\/\/gm-techlink.com\/?p=13445","title":{"rendered":"Harmonic Balancer Sliding Back on Crankshaft"},"content":{"rendered":"

A belt chirp sound or metal-to-metal sound may be heard on some 2019-2020 Silverado HD, Sierra, HD and Silverado 4500HD\/5500HD\/6500HD models equipped with the 6.6L Duramax diesel engine (RPO L5P, L5D).<\/span><\/p>\n

The outer ring of the harmonic balancer may slide back on the crankshaft and cause a misalignment of the accessory belt. If the outer ring slides back far enough, it may contact the timing cover and oil pans. <\/span><\/p>\n

Inspect the harmonic balancer, timing cover and oil pans for any damage and replace as needed. (Fig. 10)<\/span><\/p>\n

\"\"Fig. 10<\/b><\/span><\/p>\n

Check for damage to the harmonic balancer due to contact. (Fig. 11)<\/span><\/p>\n

\"\"Fig. 11<\/b><\/span><\/p>\n

Also check for separation of the harmonic balancer\u2019s inner and outer rings. (Fig. 12)<\/span><\/p>\n

\"\"Fig. 12<\/b><\/span><\/p>\n

The damper has a hub that is longer than the inertia ring. Look for a witness mark where the elastomer was originally positioned to identify any movement. (Fig. 13)<\/span><\/p>\n

\"\"Fig. 13<\/b><\/span><\/p>\n

Refer to the appropriate Service Information for the proper procedures to remove the harmonic balancer, timing cover and oil pans. <\/span><\/p>\n

For additional information, refer to #PIP5742.<\/span><\/p>\n

– Thanks to John Stempnik<\/i><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

A belt chirp sound or metal-to-metal sound may be heard on some 2019-2020 Silverado HD, Sierra, HD and Silverado 4500HD\/5500HD\/6500HD models equipped with the 6.6L Duramax diesel engine (RPO L5P, […]<\/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":[1],"tags":[],"class_list":["post-13445","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/13445","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=13445"}],"version-history":[{"count":3,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/13445\/revisions"}],"predecessor-version":[{"id":13511,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/13445\/revisions\/13511"}],"wp:attachment":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13445"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13445"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}