{"id":25752,"date":"2015-04-20T14:46:39","date_gmt":"2015-04-20T19:46:39","guid":{"rendered":"http:\/\/www.freeautomechanic.com\/mechanic\/forum\/?p=25752"},"modified":"2015-04-20T14:46:39","modified_gmt":"2015-04-20T19:46:39","slug":"1999-chevy-silverado-1500-ext-cab-5-3-v8","status":"publish","type":"post","link":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2015\/04\/1999-chevy-silverado-1500-ext-cab-5-3-v8","title":{"rendered":"1999 Chevy Silverado 1500 ext cab 5.3 V8"},"content":{"rendered":"

How imperative is it to change the spark plugs and wire at 100K miles. Truck is running fine and has 127K miles on it. Will be driving about 1800 miles pulling a 3500lb max load trailer<\/p>\n","protected":false},"excerpt":{"rendered":"

How imperative is it to change the spark plugs and wire at 100K miles. Truck is running fine and has 127K miles on it. Will be driving about 1800 miles pulling a 3500lb max load trailer<\/p>\n","protected":false},"author":11128,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[3],"tags":[393],"class_list":["post-25752","post","type-post","status-publish","format-standard","hentry","category-chevy","tag-silverado"],"yoast_head":"\n1999 Chevy Silverado 1500 ext cab 5.3 V8 - FreeAutoMechanic Advice<\/title>\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.freeautomechanic.com\/mechanic\/forum\/2015\/04\/1999-chevy-silverado-1500-ext-cab-5-3-v8\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1999 Chevy Silverado 1500 ext cab 5.3 V8\" \/>\n<meta property=\"og:description\" content=\"How imperative is it to change the spark plugs and wire at 100K miles. 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Truck is running fine and has 127K miles on it. Will be driving about 1800 miles pulling a 3500lb max load trailer","og_url":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2015\/04\/1999-chevy-silverado-1500-ext-cab-5-3-v8","og_site_name":"FreeAutoMechanic Advice","article_publisher":"https:\/\/www.facebook.com\/freeautomechanic","article_published_time":"2015-04-20T19:46:39+00:00","author":"Lano50","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Lano50"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2015\/04\/1999-chevy-silverado-1500-ext-cab-5-3-v8#article","isPartOf":{"@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2015\/04\/1999-chevy-silverado-1500-ext-cab-5-3-v8"},"author":{"name":"Lano50","@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/#\/schema\/person\/19fcd4c1c32751b8087c33ccc63fc953"},"headline":"1999 Chevy Silverado 1500 ext cab 5.3 V8","datePublished":"2015-04-20T19:46:39+00:00","mainEntityOfPage":{"@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2015\/04\/1999-chevy-silverado-1500-ext-cab-5-3-v8"},"wordCount":40,"commentCount":1,"publisher":{"@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/#organization"},"keywords":["silverado"],"articleSection":["Chevy"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2015\/04\/1999-chevy-silverado-1500-ext-cab-5-3-v8#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2015\/04\/1999-chevy-silverado-1500-ext-cab-5-3-v8","url":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2015\/04\/1999-chevy-silverado-1500-ext-cab-5-3-v8","name":"1999 Chevy Silverado 1500 ext cab 5.3 V8 - 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