{"id":40242,"date":"2025-02-28T13:35:40","date_gmt":"2025-02-28T13:35:40","guid":{"rendered":"https:\/\/www.dayco.com\/?post_type=techhub&#038;p=40242"},"modified":"2025-03-03T16:08:50","modified_gmt":"2025-03-03T16:08:50","slug":"the-top-two-reasons-timing-chains-need-replacement","status":"publish","type":"techhub","link":"https:\/\/www.dayco.com\/na-en\/techhub\/the-top-two-reasons-timing-chains-need-replacement\/","title":{"rendered":"The Top Two Reasons Timing Chains Need Replacement"},"content":{"rendered":"[vc_row type=&#8221;full_width_background&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; bg_color=&#8221;#f4f4f4&#8243; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; 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column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-37780\" src=\"https:\/\/www.dayco.com\/wp-content\/uploads\/2025\/02\/Dayco-TimingChainKit-Installation-300x200.jpeg\" alt=\"\" width=\"400\" height=\"267\" srcset=\"https:\/\/www.dayco.com\/wp-content\/uploads\/2025\/02\/Dayco-TimingChainKit-Installation-300x200.jpeg 300w, https:\/\/www.dayco.com\/wp-content\/uploads\/2025\/02\/Dayco-TimingChainKit-Installation-768x512.jpeg 768w, https:\/\/www.dayco.com\/wp-content\/uploads\/2025\/02\/Dayco-TimingChainKit-Installation-900x600.jpeg 900w, https:\/\/www.dayco.com\/wp-content\/uploads\/2025\/02\/Dayco-TimingChainKit-Installation-675x450.jpeg 675w, https:\/\/www.dayco.com\/wp-content\/uploads\/2025\/02\/Dayco-TimingChainKit-Installation.jpeg 1000w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/>Timing chains don\u2019t get a lot of attention \u2013 mostly because they are intended to perform for the life of the vehicle. But as vehicles continue to last longer, timing chain repair is becoming more common. That\u2019s because eventually over time, the chains will wear out and cause one of two issues that flag a replacement might be needed.<\/p>\n<ul>\n<li><strong>Reason 1 for Timing Chain Repair \u2013 Noise<br \/>\n<\/strong>A vehicle owner or technician might notice considerable noise coming from the front of the engine, especially upon warm up. This is an indication that the timing chain guides and tensioners are worn past the service life. We strongly recommend a technician perform the following diagnostics BEFORE determining if a timing chain repair is necessary.<br \/>\nFirst, inspect the engine. Then, review oil change maintenance with the owner \u2013 a vehicle needs to have had regular oil changes. Finally, remove at least one valve cover and inspect it for sludge and carbon deposits. If the inside of the engine is clean, a quick compression and leak down test can verify engine integrity. As long as everything comes back clear, a tech should move forward with timing chain replacement.<br \/>\nHowever, if the engine is showing signs of sludge and deposits, it is not a candidate for timing chain kit replacement, as the customer likely needs a new engine.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Reason 2 for Timing Chain Repair \u2013 Chain Stretch<br \/>\n<\/strong>A system that is experiencing chain stretch will usually trigger a PCM code, like P0016 or another code related to cam\/crank correlation. Before recommending a timing chain kit replacement, it\u2019s critical that a technician first diagnoses and repairs the codes, and verifies that the cam\/crank sensors in question are functioning properly. The VVT solenoids also need to be inspected.<br \/>\nOnce you have verified the integrity and function of crank, cam and other sensors related to the engine timing system, it is safe to proceed replacing the timing chain system. Our team has seen timing chains replaced only to find poor connections or non-functioning sensors as the actual cause of the PCM code.<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][divider line_type=&#8221;No Line&#8221; custom_height=&#8221;35&#8243;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h4>Prepping for the Installation<\/h4>\n<p>Once you know that the right move is timing chain installation, gather everything you need. Our team at Dayco recommends using a kit \u2013 it\u2019ll save time and ensure a thorough repair since a kit comes with all necessary components like sprockets, tensioners, seals and solenoids. Dayco timing chain kits also have a 2 year, 60,000 mile warranty on parts and labor when professionally installed.<\/p>\n<p>Be meticulous in following the provided installation instructions as some things need to happen in a very specific order. Dayco kits have a QR code on the side panel so you can access complete installation instructions including torque specifications.<\/p>\n<p>In addition, figure out what tools you\u2019ll need. Nearly every timing chain job on an overhead cam engine requires some special tools. For more information or to access our library of installation videos, click <a href=\"https:\/\/www.dayco.com\/na-en\/tech-hub\/training\/\">here<\/a>.[\/vc_column_text][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"<p>Timing chains don\u2019t get a lot of attention \u2013 mostly because they are intended to perform for the life of the vehicle.<\/p>\n","protected":false},"featured_media":37796,"menu_order":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"topic":[2135],"contenttype":[2225],"th_application":[2298],"th_product":[2439],"class_list":["post-40242","techhub","type-techhub","status-publish","has-post-thumbnail","topic-troubleshooting","contenttype-tech-article","th_application-automotive","th_product-drive-systems"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Dayco | The Top Two Reasons Timing Chains Need Replacement - NAM | EN<\/title>\n<meta name=\"description\" content=\"Timing chains don\u2019t get a lot of attention \u2013 mostly because they are intended to perform for the life of the vehicle.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dayco.com\/na-en\/techhub\/the-top-two-reasons-timing-chains-need-replacement\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dayco | The Top Two Reasons Timing Chains Need Replacement - NAM | EN\" \/>\n<meta property=\"og:description\" content=\"[vc_row type=&#8221;full_width_background&#8221; 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