{"id":55433,"date":"2018-06-01T09:38:23","date_gmt":"2018-06-01T14:38:23","guid":{"rendered":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/?p=55433"},"modified":"2026-02-12T08:40:02","modified_gmt":"2026-02-12T16:40:02","slug":"2004-gmc-sierra-blower-doesnt-work-solved","status":"publish","type":"post","link":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/06\/2004-gmc-sierra-blower-doesnt-work-solved","title":{"rendered":"2004 GMC Sierra blower doesn&#8217;t work &#8211; Solved"},"content":{"rendered":"<p><img decoding=\"async\" class=\"alignnone size-full wp-image-38036\" src=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/07\/2006-gmc-sierra.jpg\" alt=\"GMC Sierra\" width=\"600\" height=\"218\" srcset=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/07\/2006-gmc-sierra.jpg 600w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/07\/2006-gmc-sierra-300x109.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>Heater and <a href=\"https:\/\/www.freeautomechanic.com\/airconditioning.html\">Air Conditioning<\/a> blower doesn&#8217;t work.<br \/>\nCauses, and location of blower motor?<\/p>\n<hr \/>\n<h4>Manual Heating and Air Conditioning<\/h4>\n<p>If the blower motor only comes on in High speed, replace the blower motor resistor. If the blower motor doesn&#8217;t work at all, you will need to replace the blower motor and possibly the resistor also.<\/p>\n<h4>Automatic Climate Control<\/h4>\n<p>If the blower motor only comes on in High speed, replace the blower motor controller.<\/p>\n<h4>Blower motor location<\/h4>\n<p>Under the passenger side dash. Access from inside the cab.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-55443\" src=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2018\/05\/2004-gmc-sierra-hvac.gif\" alt=\"Blower motor location diagram\" width=\"320\" height=\"296\" \/><\/p>\n<h3>Blower Motor Replacement<\/h3>\n<ul>\n<li>If equipped, remove the sound insulator panel.<\/li>\n<li>Remove the blower motor insulating cover screws.<\/li>\n<li>Disconnect the electrical connector from the blower motor.<\/li>\n<li>Remove the blower motor insulating cover.<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-55444\" src=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2018\/05\/2004-gmc-sierra-blower-motor.gif\" alt=\"Blower Motor\" width=\"320\" height=\"296\" \/><\/p>\n<ul>\n<li>Pull the retaining tab down while turning the <span class=\"search_highlight\">blower<\/span> <span class=\"search_highlight\">motor<\/span> counterclockwise in order to disengage the <span class=\"search_highlight\">blower<\/span> <span class=\"search_highlight\">motor<\/span> from the heater\/ventilation module.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Heater and Air Conditioning blower doesn&#8217;t work. Causes, and location of blower motor? Manual Heating and Air Conditioning If the blower motor only comes on in High speed, replace the blower motor resistor. If the blower motor doesn&#8217;t work at all, you will need to replace the blower motor and possibly the resistor also. Automatic&hellip;&nbsp;<a href=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/06\/2004-gmc-sierra-blower-doesnt-work-solved\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">2004 GMC Sierra blower doesn&#8217;t work &#8211; Solved<\/span><\/a><\/p>\n","protected":false},"author":14962,"featured_media":0,"comment_status":"open","ping_status":"open","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":[1,22],"tags":[21803,220,21802,512],"class_list":["post-55433","post","type-post","status-publish","format-standard","hentry","category-auto-repair-questions","category-gmc","tag-blower-doesnt-work","tag-blower-motor","tag-blower-motor-replacement","tag-sierra"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>2004 GMC Sierra blower doesn&#039;t work - Solved - FreeAutoMechanic Advice<\/title>\n<meta name=\"description\" content=\"If the blower motor only comes on in High speed, replace the blower motor resistor. 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If the blower motor doesn't work at all, you will need to replace the blower motor and possibly the resistor also.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/06\/2004-gmc-sierra-blower-doesnt-work-solved","og_locale":"en_US","og_type":"article","og_title":"2004 GMC Sierra blower doesn't work - Solved","og_description":"If the blower motor only comes on in High speed, replace the blower motor resistor. If the blower motor doesn't work at all, you will need to replace the blower motor and possibly the resistor also.","og_url":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/06\/2004-gmc-sierra-blower-doesnt-work-solved","og_site_name":"FreeAutoMechanic Advice","article_publisher":"https:\/\/www.facebook.com\/freeautomechanic","article_published_time":"2018-06-01T14:38:23+00:00","article_modified_time":"2026-02-12T16:40:02+00:00","og_image":[{"width":600,"height":218,"url":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/07\/2006-gmc-sierra.jpg","type":"image\/jpeg"}],"author":"roger","twitter_card":"summary_large_image","twitter_misc":{"Written by":"roger","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/06\/2004-gmc-sierra-blower-doesnt-work-solved#article","isPartOf":{"@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/06\/2004-gmc-sierra-blower-doesnt-work-solved"},"author":{"name":"roger","@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/#\/schema\/person\/e857b300cdd3e23e898e4479e9e8781f"},"headline":"2004 GMC Sierra blower doesn&#8217;t work &#8211; Solved","datePublished":"2018-06-01T14:38:23+00:00","dateModified":"2026-02-12T16:40:02+00:00","mainEntityOfPage":{"@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/06\/2004-gmc-sierra-blower-doesnt-work-solved"},"wordCount":149,"commentCount":0,"publisher":{"@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/#organization"},"image":{"@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/06\/2004-gmc-sierra-blower-doesnt-work-solved#primaryimage"},"thumbnailUrl":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/07\/2006-gmc-sierra.jpg","keywords":["blower doesn't work","Blower Motor","Blower Motor Replacement","Sierra"],"articleSection":["Auto Repair Questions","GMC"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/06\/2004-gmc-sierra-blower-doesnt-work-solved#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/06\/2004-gmc-sierra-blower-doesnt-work-solved","url":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/06\/2004-gmc-sierra-blower-doesnt-work-solved","name":"2004 GMC Sierra blower doesn't work - Solved - FreeAutoMechanic Advice","isPartOf":{"@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/06\/2004-gmc-sierra-blower-doesnt-work-solved#primaryimage"},"image":{"@id":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/06\/2004-gmc-sierra-blower-doesnt-work-solved#primaryimage"},"thumbnailUrl":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/07\/2006-gmc-sierra.jpg","datePublished":"2018-06-01T14:38:23+00:00","dateModified":"2026-02-12T16:40:02+00:00","description":"If the blower motor only comes on in High speed, replace the blower motor resistor. 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