{"id":45961,"date":"2021-11-16T02:21:38","date_gmt":"2021-11-16T10:21:38","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=45961"},"modified":"2023-08-13T18:16:58","modified_gmt":"2023-08-14T01:16:58","slug":"bad-expansion-valve-symptoms","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/","title":{"rendered":"Bad Expansion Valve Symptoms"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_5cb562-60 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_5cb562-60 > .kt-inside-inner-col,.kadence-column_5cb562-60 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_5cb562-60 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_5cb562-60 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_5cb562-60 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_5cb562-60 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_5cb562-60{position:relative;}@media all and (max-width: 1024px){.kadence-column_5cb562-60 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_5cb562-60 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_5cb562-60 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-176fd2  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-e90627\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_757050-b0, .wp-block-kadence-advancedheading.kt-adv-heading_757050-b0[data-kb-block=\"kb-adv-heading_757050-b0\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_757050-b0 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_757050-b0[data-kb-block=\"kb-adv-heading_757050-b0\"] mark.kt-highlight{font-family:Inter;font-weight:500;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading_757050-b0 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_757050-b0[data-kb-block=\"kb-adv-heading_757050-b0\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_757050-b0 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_757050-b0\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>The expansion valve lowers refrigerant pressure and meters it into the evaporator core.<\/li><li>If the expansion valve gets damaged, the A\/C unit will blow warm air and the evaporator core could get flooded and accumulate frost.<\/li><li>An expansion valve replacement can cost anywhere between $150 and $400.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Your car&rsquo;s air conditioning (A\/C) system is made up of a variety of components, one of which is an expansion valve (or an orifice tube). Like any other part of the A\/C system, the expansion valve can prevent proper cooling of the cabin when it fails.<\/p>\n\n\n\n<p>Naturally, when you&rsquo;re A\/C isn&rsquo;t cooling well due to a bad expansion valve, your car can be extremely uncomfortable, which means you&rsquo;ll want to fix the problem right away.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/car-ac-system-1024x821.jpg\" alt=\"car ac system\" class=\"wp-image-45962\" width=\"1024\" height=\"821\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/car-ac-system-1024x821.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/car-ac-system-300x240.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/car-ac-system-768x615.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/car-ac-system-150x120.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/car-ac-system.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The expansion valve can prevent proper cooling of the cabin when it fails.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What Does an Expansion Valve Do?<\/h2>\n\n\n\n<p>To understand the role of the expansion valve, it helps first to have some knowledge of how the A\/C system works. All automotive A\/C systems use refrigerant as a heat transfer mechanism to remove heat from the cabin. The process starts at a device called the <a href=\"https:\/\/www.carparts.com\/a-c-compressor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"compressor\">compressor<\/a>.<\/p>\n\n\n\n<p>When the engine is running and the A\/C is engaged, the compressor pressurizes and distributes vapor refrigerant into the system. After leaving the compressor, the refrigerant enters a radiator-type device, called the <a href=\"https:\/\/www.carparts.com\/a-c-condenser\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"condenser\">condenser<\/a>, which transfers some of the heat from the refrigerant into the atmosphere. The refrigerant also turns into a liquid while inside the condenser.<\/p>\n\n\n\n<p>Next, the high-pressure liquid refrigerant enters a restriction. The restriction lowers the pressure of the refrigerant and meters it into the next part of the system&mdash;the <a href=\"https:\/\/www.carparts.com\/a-c-evaporator\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"evaporator\">evaporator<\/a> core (another radiator-type device).<\/p>\n\n\n\n<p>Depending on the system design, the restriction will be either an orifice tube or an expansion valve. If an expansion valve is used, a diaphragm within the valve works with a temperature-sensing mechanism to regulate the rate at which refrigerant enters the evaporator core.<\/p>\n\n\n\n<p>From there, a <a href=\"https:\/\/www.carparts.com\/blower-motor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"blower motor\">blower motor<\/a> then forces air through the evaporator core, causing heat from the cabin air to be transferred to the refrigerant. At the same time, the refrigerant boils and turns into a low-pressure vapor, then heads back to the compressor to restart the cycle.<\/p>\n\n\n\n<p>Another thing to mention is that all A\/C systems have a drier that removes moisture from the lines. Systems that have an expansion valve use a <a href=\"https:\/\/www.carparts.com\/a-c-receiver-drier\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"receiver-drier\">receiver-drier<\/a>, whereas those with an orifice tube rely on an accumulator-drier.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/automative-expansion-valve-1024x684.jpg\" alt=\"automative expansion valve\" class=\"wp-image-45963\" width=\"1024\" height=\"684\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/automative-expansion-valve-1024x684.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/automative-expansion-valve-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/automative-expansion-valve-768x513.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/automative-expansion-valve-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/automative-expansion-valve-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/automative-expansion-valve.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Expect to pay somewhere between $150 and $400 if you want to have a mechanic replace your expansion valve.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Symptoms of a Bad Expansion Valve<\/h2>\n\n\n\n<p>Over time, your car&rsquo;s expansion valve (if it has one) can eventually fail, resulting in at least one&nbsp; of the following symptoms:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Air Conditioning Blows Warm Air<\/h3>\n\n\n\n<p>The expansion valve is just one of many problems that can cause your car&rsquo;s A\/C system to blow nothing but warm air. If the valve is stuck closed, refrigerant flow to the evaporator core will be restricted, preventing the A\/C system from working as it should. Meanwhile, if the valve is stuck open, the evaporator core will be flooded, preventing proper A\/C system operation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Refrigerant Oil and\/or Dye Buildup<\/h3>\n\n\n\n<p>It&rsquo;s possible for the expansion valve to develop leaks. When that happens, you may notice refrigerant oil accumulated around the valve. You may also notice green dye if there has been dye added to the system at some point.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Frost Accumulation<\/h3>\n\n\n\n<p>An expansion valve that&rsquo;s stuck open can result in a flooded evaporator core, which can cause frost to accumulate at the evaporator&rsquo;s outlet. On the other hand, frost buildup on the outside of the expansion valve can indicate the valve is clogged or stuck closed.<\/p>\n\n\n\n<div id=\"article-search-widget\">\n<div class=\"cp-search\">\n<div align=\"center\">\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/w_auto,dpr_auto\/carparts\/logos\/badge_wordmark\/full_color\/CP_LOGO_COLOUR_RGB\" alt=\"CarParts.com\" width=\"300\" height=\"56\">\n<\/div>\n<form id=\"cpsearchform\" name=\"cpsearchform\" action=\"https:\/\/www.carparts.com\/search\" method=\"get\" target=\"_blank\" accept-charset=\"character_set\" aria-label=\"search CarParts.com\">\n    <input type=\"text\" class=\"keyword\" name=\"q\" placeholder=\"Search for parts on CarParts.com\" value=\"\" aria-label=\"Search CarParts.com\"><input type=\"submit\" class=\"btn-search\" value=\"Search\" aria-label=\"Search\">\n<\/form>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Expansion Valve Replacement Cost<\/h2>\n\n\n\n<p>Exactly how much it costs to replace an expansion valve will depend on several factors, including what type of vehicle you have. If you choose to have a professional replace the valve, you can usually expect to pay somewhere between $150 and $400 to get the job done. Because the A\/C system must be evacuated and recharged when the valve is replaced, most of the repair cost comes from labor.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Get a High-Quality Expansion Valve for Your Ride<\/h2>\n\n\n\n<p>Your A\/C blowing only warm air can make driving uncomfortable, while refrigerant leaks can be a hassle to deal with. Why put up with these issues when you can shop for a top-notch replacement expansion valve at CarParts.com in minutes?<\/p>\n\n\n\n<p>With just a few clicks, you can find and order the perfect expansion valve replacement here at <a href=\"https:\/\/www.carparts.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"CarParts.com\">CarParts.com<\/a>. Browse expansion valve replacements that fit your ride and needs using our built-in vehicle selector and filters. All our replacement parts are tried and tested during manufacturing to guarantee their quality and functionality. They&rsquo;re available at competitive prices, so you&rsquo;re sure to find valves that fit your budget.<\/p>\n\n\n\n<p>Need your replacement as soon as possible? We&rsquo;ve got you covered! We have strategically located warehouses across the country to make sure you get your new expansion valve in just a few days. Don&rsquo;t hesitate to contact our friendly customer service team if you have questions about our products.<\/p>\n\n\n\n<p>Shopping for replacement parts has never been this easy. Check out our <a href=\"https:\/\/www.carparts.com\/a-c-expansion-valve\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"expansion valves\">expansion valves<\/a> today!<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Your car&rsquo;s air conditioning (A\/C) system is made up of a variety of components, one of which is an expansion&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":29,"featured_media":45964,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[3753,52],"tags":[1786],"ppma_author":[2622],"class_list":{"0":"post-45961","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-cooling-system","8":"category-diy","9":"tag-a-c-expansion-valve","10":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bad Expansion Valve Symptoms - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"A bad expansion valve can make driving your car extremely uncomfortable. Learn the common symtoms of a bad expansion valve in this article.\" \/>\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.carparts.com\/blog\/bad-expansion-valve-symptoms\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bad Expansion Valve Symptoms - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"A bad expansion valve can make driving your car extremely uncomfortable. Learn the common symtoms of a bad expansion valve in this article.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/\" \/>\n<meta property=\"og:site_name\" content=\"In The Garage with CarParts.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2021-11-16T10:21:38+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-08-14T01:16:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/ac-vent-of-a-car.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"1001\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/bad-expansion-valve-symptoms\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/bad-expansion-valve-symptoms\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"29\",\"name\":\"Mia Bevacqua\",\"jobTitle\":\"ASE Master Automobile Technician\",\"description\":\"Mia Bevacqua has over 14 years of experience in the auto industry and holds a bachelor\u2019s degree in Advanced Automotive Systems. Certifications include ASE Master Automobile Technician, Master Medium\\\/Heavy Truck Technician, L1, L2, L3, and L4 Advanced Level Specialist. Mia loves fixer-upper oddballs, like her 1987 Cavalier Z-24 and 1998 Astro Van AWD.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/miabevacqua\",\"sameAs\":\"https:\\\/\\\/www.linkedin.com\\\/in\\\/mia-bevacqua-55b3a485\"}],\"headline\":\"Bad Expansion Valve Symptoms\",\"datePublished\":\"2021-11-16T10:21:38+00:00\",\"dateModified\":\"2023-08-14T01:16:58+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/bad-expansion-valve-symptoms\\\/\"},\"wordCount\":892,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/bad-expansion-valve-symptoms\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/11\\\/ac-vent-of-a-car.jpg\",\"keywords\":[\"a-c-expansion-valve\"],\"articleSection\":[\"Cooling System\",\"DIY\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/bad-expansion-valve-symptoms\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/bad-expansion-valve-symptoms\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/bad-expansion-valve-symptoms\\\/\",\"name\":\"Bad Expansion Valve Symptoms - In The Garage with CarParts.com\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/bad-expansion-valve-symptoms\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/bad-expansion-valve-symptoms\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/11\\\/ac-vent-of-a-car.jpg\",\"datePublished\":\"2021-11-16T10:21:38+00:00\",\"dateModified\":\"2023-08-14T01:16:58+00:00\",\"description\":\"A bad expansion valve can make driving your car extremely uncomfortable. Learn the common symtoms of a bad expansion valve in this article.\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/bad-expansion-valve-symptoms\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/bad-expansion-valve-symptoms\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/11\\\/ac-vent-of-a-car.jpg\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/11\\\/ac-vent-of-a-car.jpg\",\"width\":1500,\"height\":1001,\"caption\":\"ac vent of a car\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"name\":\"In The Garage with CarParts.com\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\",\"name\":\"CarParts.com\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"width\":2048,\"height\":398,\"caption\":\"CarParts.com\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/carpartscom\",\"https:\\\/\\\/x.com\\\/carpartscom\",\"https:\\\/\\\/www.instagram.com\\\/carpartscom\",\"https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/\"]},{\"@type\":\"Person\",\"@id\":\"\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/bad-expansion-valve-symptoms\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Bad Expansion Valve Symptoms - In The Garage with CarParts.com","description":"A bad expansion valve can make driving your car extremely uncomfortable. Learn the common symtoms of a bad expansion valve in this article.","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.carparts.com\/blog\/bad-expansion-valve-symptoms\/","og_locale":"en_US","og_type":"article","og_title":"Bad Expansion Valve Symptoms - In The Garage with CarParts.com","og_description":"A bad expansion valve can make driving your car extremely uncomfortable. Learn the common symtoms of a bad expansion valve in this article.","og_url":"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/","og_site_name":"In The Garage with CarParts.com","article_publisher":"https:\/\/www.facebook.com\/carpartscom","article_published_time":"2021-11-16T10:21:38+00:00","article_modified_time":"2023-08-14T01:16:58+00:00","og_image":[{"width":1500,"height":1001,"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/ac-vent-of-a-car.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_creator":"@carpartscom","twitter_site":"@carpartscom","twitter_misc":{"Written by":"","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/#article","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/"},"author":[{"@type":"Person","$id":"29","name":"Mia Bevacqua","jobTitle":"ASE Master Automobile Technician","description":"Mia Bevacqua has over 14 years of experience in the auto industry and holds a bachelor\u2019s degree in Advanced Automotive Systems. Certifications include ASE Master Automobile Technician, Master Medium\/Heavy Truck Technician, L1, L2, L3, and L4 Advanced Level Specialist. Mia loves fixer-upper oddballs, like her 1987 Cavalier Z-24 and 1998 Astro Van AWD.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/miabevacqua","sameAs":"https:\/\/www.linkedin.com\/in\/mia-bevacqua-55b3a485"}],"headline":"Bad Expansion Valve Symptoms","datePublished":"2021-11-16T10:21:38+00:00","dateModified":"2023-08-14T01:16:58+00:00","mainEntityOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/"},"wordCount":892,"commentCount":0,"publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/ac-vent-of-a-car.jpg","keywords":["a-c-expansion-valve"],"articleSection":["Cooling System","DIY"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/","url":"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/","name":"Bad Expansion Valve Symptoms - In The Garage with CarParts.com","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/#primaryimage"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/ac-vent-of-a-car.jpg","datePublished":"2021-11-16T10:21:38+00:00","dateModified":"2023-08-14T01:16:58+00:00","description":"A bad expansion valve can make driving your car extremely uncomfortable. Learn the common symtoms of a bad expansion valve in this article.","inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/#primaryimage","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/ac-vent-of-a-car.jpg","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/ac-vent-of-a-car.jpg","width":1500,"height":1001,"caption":"ac vent of a car"},{"@type":"WebSite","@id":"https:\/\/www.carparts.com\/blog\/#website","url":"https:\/\/www.carparts.com\/blog\/","name":"In The Garage with CarParts.com","description":"","publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.carparts.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.carparts.com\/blog\/#organization","name":"CarParts.com","url":"https:\/\/www.carparts.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","width":2048,"height":398,"caption":"CarParts.com"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/carpartscom","https:\/\/x.com\/carpartscom","https:\/\/www.instagram.com\/carpartscom","https:\/\/www.youtube.com\/@CarPartscomOfficial\/"]},{"@type":"Person","@id":"","url":"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/"}]}},"featured_image_src":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/ac-vent-of-a-car.jpg","featured_image_src_square":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/ac-vent-of-a-car.jpg","author_info":{"display_name":"","author_link":"https:\/\/www.carparts.com\/blog\/bad-expansion-valve-symptoms\/"},"authors":[{"term_id":2622,"user_id":1643,"is_guest":0,"slug":"miabevacqua","display_name":"Mia Bevacqua, ASE Certified Master Automobile Technician","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/mia-bevacqua-chief-mechanic.png","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/mia-bevacqua-chief-mechanic.png"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/45961","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/users\/29"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/comments?post=45961"}],"version-history":[{"count":0,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/45961\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media\/45964"}],"wp:attachment":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media?parent=45961"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/categories?post=45961"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/tags?post=45961"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=45961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}