{"id":185115,"date":"2025-11-06T19:48:24","date_gmt":"2025-11-07T03:48:24","guid":{"rendered":"https:\/\/www.carparts.com\/blog\/?p=185115"},"modified":"2025-11-06T19:48:28","modified_gmt":"2025-11-07T03:48:28","slug":"thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/","title":{"rendered":"Thermostat Replacement: Cost, DIY Steps, and When to Call a Shop"},"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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>\n<div class=\"summary-widget\">\n    <h3>Summary<\/h3>\n    <ul class=\"summary-grid\">\n            <li class=\"summary-grid-list\">\n            <div class=\"sm-item\">\n\n                                    <p class=\"sm-title\">\n                        Thermostat replacement typically costs between $560 and $750. The total varies with labor time (0.8&ndash;2.5 hours at $50&ndash;$220 per hour), the part type&mdash;basic ($15&ndash;$60) or integrated\/electronic (a few hundred dollars)&mdash;and how difficult it is to access.                    <\/p>\n                \n            <\/div>\n        <\/li>\n            <li class=\"summary-grid-list\">\n            <div class=\"sm-item\">\n\n                                    <p class=\"sm-title\">\n                        Many vehicles allow for a do-it-yourself thermostat replacement if you can drain coolant, remove hoses, and torque bolts correctly. Clear access and simple bleeding make it manageable at home, but complex or electronically heated units are best left to a shop.                    <\/p>\n                \n            <\/div>\n        <\/li>\n            <li class=\"summary-grid-list\">\n            <div class=\"sm-item\">\n\n                                    <p class=\"sm-title\">\n                        The process includes cooling the engine, draining coolant below the housing, removing and replacing the thermostat with a new seal, and refilling the system. Proper bleeding removes air pockets.                    <\/p>\n                \n            <\/div>\n        <\/li>\n        <\/ul>\n<\/div>\n\n\n\n\n\n<p>A <a href=\"https:\/\/www.carparts.com\/thermostat\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"thermostat\">thermostat<\/a> is a small valve with a big job. It meters <a href=\"https:\/\/www.carparts.com\/coolant-antifreeze\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"coolant\">coolant<\/a> so the engine warms quickly, runs in its sweet spot, and keeps emissions under control. If it <a href=\"https:\/\/www.carparts.com\/blog\/what-are-the-common-signs-of-a-bad-thermostat\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"sticks shut\">sticks shut<\/a>, heat builds fast and can warp heads or fry gaskets. If it sticks open, the engine runs cool, fuel use climbs, the check engine light comes on with a code <a href=\"https:\/\/www.carparts.com\/blog\/p0128-coolant-temperature-below-thermostat-regulating-temperature\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"P0128\">P0128<\/a> or <a href=\"https:\/\/www.carparts.com\/blog\/p0125-code-insufficient-coolant-temperature-for-closed-loop-fuel-control\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"P0125\">P0125<\/a>, and the <a href=\"https:\/\/www.carparts.com\/catalytic-converter\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"catalytic converter\">catalytic converter<\/a> wakes up late. Either way, the bill that follows can dwarf the price of the part.<\/p>\n\n\n\n<p>Today&rsquo;s cars add twists. Many use a molded plastic housing with sensors, and some include an electrically heated, &ldquo;map-controlled&rdquo; unit that lets the ECU change the opening point under load. You get finer temperature control, but parts cost rises and access can be fussier&mdash;two big reasons estimates swing so much by model and engine layout.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Much Does Thermostat Replacement Cost?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"927\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/wax-pellet-engine-thermostat-1024x927.png\" alt=\"wax pellet engine thermostat\" class=\"wp-image-185116\"><figcaption class=\"wp-element-caption\">Wax-pellet engine thermostat that opens as temperature rises to regulate coolant flow through the engine | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<p><strong>Expect a wide spread. On late-model cars, national estimate tools often show complete jobs landing in the mid-hundreds, with common ranges around $560&ndash;$750.&nbsp;<\/strong><\/p>\n\n\n\n<p><strong>That variation comes from labor time, the part style (simple wax valve versus an integrated assembly), and how buried the unit is on transverse or V-configuration engines. Your local number generally follows flat-rate hours times the posted hourly rate&mdash;often $50 to $220&mdash;plus parts and coolant.<\/strong><\/p>\n\n\n\n<p>If your car uses a separate, easy-to-reach thermostat, the total can drop a lot, especially on older layouts. At the other end, electronic or integrated setups can push the parts line far higher than a basic valve. That&rsquo;s why quotes for a base compact and a turbo luxury model can sit worlds apart. Always compare estimates that list parts, labor hours, and coolant so you know what you&rsquo;re paying for.<\/p>\n\n\n\n<p><strong>Parts vs. labor:<\/strong> A plain thermostat might run $15&ndash;$60; an integrated or electronically assisted assembly can run a few hundred. Labor often falls between ~0.8 and 2.5 hours, but hidden fasteners, seized hardware, or extra trim removal add time. On many newer platforms, those variables guide the total more than the part itself.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Price Drivers<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Integrated <a href=\"https:\/\/www.carparts.com\/thermostat-housing\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"housings\">housings<\/a> with sensors or quick-connects<\/li>\n\n\n\n<li>Locations tucked under <a href=\"https:\/\/www.carparts.com\/intake-manifold\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"intake manifolds\">intake manifolds<\/a> or behind accessory drives<\/li>\n\n\n\n<li>Required <a href=\"https:\/\/www.carparts.com\/blog\/how-to-flush-coolant\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"coolant drain\/flush\">coolant drain\/flush<\/a> and careful bleeding<\/li>\n\n\n\n<li>Bundling with other cooling work (<a href=\"https:\/\/www.carparts.com\/water-pump\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"water pump\">water pump<\/a>, <a href=\"https:\/\/www.carparts.com\/radiator\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"radiator\">radiator<\/a>, hoses)<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"879\" height=\"444\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/crown-victoria-thermostat.jpg\" alt=\"crown victoria thermostat\" class=\"wp-image-185117\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/crown-victoria-thermostat.jpg 879w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/crown-victoria-thermostat-300x152.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/crown-victoria-thermostat-768x388.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/crown-victoria-thermostat-150x76.jpg 150w\" sizes=\"(max-width: 879px) 100vw, 879px\"><figcaption class=\"wp-element-caption\">Among the easiest thermostats to replace are on engines like this Crown Victoria where the thermostat is right on top and easy to access. | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Symptoms That Point to a Failing Thermostat<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rapid <a href=\"https:\/\/www.carparts.com\/blog\/coolant-temperature-warning-light-meaning-causes-what-to-do\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"overheating\">overheating<\/a> or a hot upper hose with a cold radiator: likely stuck shut. (Note: This is very uncommon on modern platforms; it happens most on pre-1990 engines.)<\/li>\n\n\n\n<li>Long warm-up, low gauge reading, weak cabin heat: likely stuck open or opening too soon.<\/li>\n\n\n\n<li>Gauge swings or sudden spikes: intermittent sticking, air pockets, or sensor hiccups.<\/li>\n\n\n\n<li>Check Engine Light with temperature plausibility codes: common as warm-up strategy goes sideways.<\/li>\n\n\n\n<li>Coolant crust at the housing: warped flange or a tired seal.<\/li>\n<\/ul>\n\n\n\n<p><strong>Why move quickly?<\/strong> Running cold burns more fuel and raises emissions; running hot risks head-gasket trouble and a damaged catalytic converter.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"975\" height=\"1024\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/stuck-open-thermostat-975x1024.jpg\" alt=\"stuck open thermostat\" class=\"wp-image-185118\"><figcaption class=\"wp-element-caption\">A thermostat that&rsquo;s stuck open | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Can you Replace Your Car&rsquo;s Thermostat at Home?<\/h2>\n\n\n\n<p>If you&rsquo;re comfortable draining coolant, pulling hoses, and tightening bolts with a <a href=\"https:\/\/www.carparts.com\/torque-wrench\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"torque wrench\">torque wrench<\/a>, many cars are DIY-friendly.&nbsp;<\/p>\n\n\n\n<p>Clear access and simple bleeding make it a weekend job. If the unit is buried&mdash;or it&rsquo;s an electronically heated type&mdash;having a shop handle it can save knuckles and time.&nbsp;<\/p>\n\n\n\n<p>Use the cost ranges above to decide whether tools and hours pencil out for you.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tools and Materials<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vehicle-specific thermostat and <a href=\"https:\/\/www.carparts.com\/replacement\/thermostat-gasket\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fresh seal\/gasket\">fresh seal\/gasket<\/a> (or complete housing)<\/li>\n\n\n\n<li>Correct coolant type and amount (check the owner&rsquo;s manual)<\/li>\n\n\n\n<li>Socket set and torque wrench<\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/hose-clamp-pliers\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Hose-clamp pliers\">Hose-clamp pliers<\/a> and a pick for old gasket material<\/li>\n\n\n\n<li>Drain pan and funnel; a spill-free\/bleeder funnel is a big help<\/li>\n\n\n\n<li>Shop <a href=\"https:\/\/www.carparts.com\/towel\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"towels\">towels<\/a>, <a href=\"https:\/\/www.carparts.com\/safety-glasses\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"safety glasses\">safety glasses<\/a>, <a href=\"https:\/\/www.carparts.com\/gloves\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"gloves\">gloves<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Replace a Car Thermostat (Step by Step)<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Cool and depressurize:<\/strong> Park on level ground. Let the engine go cold. Feel the <a href=\"https:\/\/www.carparts.com\/radiator-hose\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"upper radiator hose\">upper radiator hose<\/a> for pressure; if there&rsquo;s pressure, wait longer. Crack the cap slowly.<\/li>\n\n\n\n<li><strong>Drain below the housing:<\/strong> Catch coolant in a pan. Save it if it&rsquo;s still within service life and clean.<\/li>\n\n\n\n<li><strong>Find the housing:<\/strong> Trace the upper radiator hose to the housing but realize that on some engines (like the 2.2L Camry) the thermostat is where the lower radiator hose connects to the block. Pull intake ducting or brackets if they block access.<\/li>\n\n\n\n<li><strong>Remove housing and old thermostat:<\/strong> Note orientation. Some units have a jiggle pin or bleed notch that must face a certain way.<\/li>\n\n\n\n<li><strong>Prep the surfaces:<\/strong> Clean the mating faces without scratching aluminum. Replace O-rings\/gaskets&mdash;don&rsquo;t reuse a crushed seal.<\/li>\n\n\n\n<li><strong>Install the new unit:<\/strong> Match orientation and seating depth. Tighten bolts evenly to spec.<\/li>\n\n\n\n<li><strong>Refill and bleed:<\/strong> Add the correct mix. Run the engine with the heater on. Use a spill-free funnel or the factory bleed ports until the thermostat opens and bubbles stop. Top off the <a href=\"https:\/\/www.carparts.com\/coolant-reservoir\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"reservoir\">reservoir<\/a>.<\/li>\n<\/ol>\n\n\n\n<p><strong>Verify:<\/strong> Look for a steady gauge, hot air from the vents, and dry joints. With the A\/C off, the engine cooling fan should turn off and on at least 2 times. If it comes on and stays on (A\/C off), you may have low coolant or some other overheating issue. Take a short drive and recheck the level once cold.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"923\" height=\"1024\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/toyota-camry-thermostat-diagram-923x1024.jpg\" alt=\"toyota camry thermostat diagram\" class=\"wp-image-185119\"><figcaption class=\"wp-element-caption\">Thermostat location on the 2.2L Toyota Camry; mounted at the engine block end of the lower radiator hose, with the housing and seal shown. | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"471\" height=\"706\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/2-point-4l-gm-engine-thermostat-diagram.jpg\" alt=\"2 point 4l gm engine thermostat diagram\" class=\"wp-image-185120\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/2-point-4l-gm-engine-thermostat-diagram.jpg 471w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/2-point-4l-gm-engine-thermostat-diagram-200x300.jpg 200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/2-point-4l-gm-engine-thermostat-diagram-150x225.jpg 150w\" sizes=\"(max-width: 471px) 100vw, 471px\"><figcaption class=\"wp-element-caption\">2.4L GM engine: thermostat located at the front of the engine, above the oil pan and next to the transaxle, using a cartridge-style housing design | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<p><strong>Note:<\/strong> Brands that use map-controlled thermostats heat the wax pellet to shift the opening point based on load. No programming is usually needed after replacement, but a thorough bleed matters for sensor readings and fan logic.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ways to Keep Replacement Costs Down<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ask for line-items:<\/strong> flat-rate hours &times; hourly rate, part brand\/PN, coolant type and quantity. Easy to compare, easy to question.<\/li>\n\n\n\n<li><strong>Bundle wisely:<\/strong> If a pump, radiator, or hoses are due, knock them out together to avoid paying labor twice.<\/li>\n\n\n\n<li><strong>Pick the part format that fits your car and your plans:<\/strong> If both a separate valve and an integrated housing exist, balance upfront price against leak resistance and future service time.<\/li>\n\n\n\n<li><strong>Split the job:<\/strong> If your engine bay is roomy, you can handle the swap and have a shop vacuum-fill and bleed if your platform is picky.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">More Tips for Thermostat Replacement<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Coolant chemistry matters.<\/strong> Mixing <a href=\"https:\/\/www.carparts.com\/blog\/what-kinds-of-antifreeze-and-coolant-are-there\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"IAT\/OAT\/HOAT\">IAT\/OAT\/HOAT<\/a> at random can make gel and sludge that clogs passages and ruins seals. If you&rsquo;re not certain what&rsquo;s in there, drain and refill with the spec from the owner&rsquo;s manual rather than topping with a mystery jug.<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/www.carparts.com\/blog\/a-beginners-guide-on-how-to-burp-a-coolant-system\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Bleeding\">Bleeding<\/a> isn&rsquo;t optional<\/strong>. Air pockets cause hot spots, jumpy gauges, and heater complaints. Use the bleed points or keep a liquid head with a spill-free funnel until the system settles.<\/li>\n\n\n\n<li><strong>Warm-up strategy affects emissions and drivability.<\/strong> A cool-running thermostat delays catalyst light-off and can set fuel-trim and thermostat-performance codes.<\/li>\n<\/ul>\n\n\n\n<p><strong>Map-controlled units exist.<\/strong> A small heater in the pellet lets the ECU run cooler under heavy load (for knock resistance) and warmer at cruise (for economy). Great for performance, pricier to replace.<\/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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>A thermostat is a small valve with a big job. It meters coolant so the engine warms quickly, runs in&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":185118,"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":[1034,3753,52],"tags":[332],"ppma_author":[2607,2985],"class_list":{"0":"post-185115","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-auto-repair","8":"category-cooling-system","9":"category-diy","10":"tag-thermostat","11":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Thermostat Replacement: Cost, DIY Steps, and When to Call a Shop - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Learn what affects thermostat replacement costs, how to spot failure symptoms, and when to handle the job yourself or call a shop. Get clear, practical tips to save money and keep your engine running at the right temperature.\" \/>\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\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Thermostat Replacement: Cost, DIY Steps, and When to Call a Shop - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Learn what affects thermostat replacement costs, how to spot failure symptoms, and when to handle the job yourself or call a shop. Get clear, practical tips to save money and keep your engine running at the right temperature.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/\" \/>\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:author\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2025-11-07T03:48:24+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-11-07T03:48:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/stuck-open-thermostat-e1762485901990.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"900\" \/>\n\t<meta property=\"og:image:height\" content=\"946\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"CarParts.com Research Team, Richard McCuistian, ASE Certified Master Automobile Technician\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@https:\/\/twitter.com\/CarPartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"CarParts.com Research Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"1651\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/thecpteam\\\/\",\"sameAs\":\"https:\\\/\\\/www.facebook.com\\\/carpartscom, https:\\\/\\\/twitter.com\\\/CarPartscom, https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/, https:\\\/\\\/www.instagram.com\\\/carpartscom\\\/\"},{\"@type\":\"Person\",\"$id\":\"1651\",\"name\":\"Richard McCuistian\",\"jobTitle\":\"ASE Master Automobile Technician\",\"description\":\"Richard McCuistian has worked for nearly 50 years in the automotive field as a professional technician, an instructor, and a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others. Richard is ASE certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/richardmccuistian\\\/\",\"sameAs\":\"https:\\\/\\\/www.linkedin.com\\\/in\\\/richard-mccuistian-2681891b\\\/, https:\\\/\\\/www.youtube.com\\\/user\\\/McCuistian\"}],\"headline\":\"Thermostat Replacement: Cost, DIY Steps, and When to Call a Shop\",\"datePublished\":\"2025-11-07T03:48:24+00:00\",\"dateModified\":\"2025-11-07T03:48:28+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\\\/\"},\"wordCount\":1253,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/stuck-open-thermostat-e1762485901990.jpg\",\"keywords\":[\"thermostat\"],\"articleSection\":[\"Auto Repair\",\"Cooling System\",\"DIY\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\\\/\",\"name\":\"Thermostat Replacement: Cost, DIY Steps, and When to Call a Shop - In The Garage with CarParts.com\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/stuck-open-thermostat-e1762485901990.jpg\",\"datePublished\":\"2025-11-07T03:48:24+00:00\",\"dateModified\":\"2025-11-07T03:48:28+00:00\",\"description\":\"Learn what affects thermostat replacement costs, how to spot failure symptoms, and when to handle the job yourself or call a shop. Get clear, practical tips to save money and keep your engine running at the right temperature.\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/stuck-open-thermostat-e1762485901990.jpg\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/stuck-open-thermostat-e1762485901990.jpg\",\"width\":900,\"height\":946,\"caption\":\"stuck open thermostat\"},{\"@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\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/person\\\/9f8a8b00e1b9f62f86295617b525e1f0\",\"name\":\"CarParts.com Research Team\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/thecpteam.jpg485c93be26f8b27acc17cbe4a2313397\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/thecpteam.jpg\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/thecpteam.jpg\",\"caption\":\"CarParts.com Research Team\"},\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.\",\"sameAs\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/thecpteam\\\/\",\"https:\\\/\\\/www.facebook.com\\\/carpartscom\",\"https:\\\/\\\/www.instagram.com\\\/carpartscom\\\/\",\"https:\\\/\\\/x.com\\\/https:\\\/\\\/twitter.com\\\/CarPartscom\",\"https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/\"],\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/thecpteam\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Thermostat Replacement: Cost, DIY Steps, and When to Call a Shop - In The Garage with CarParts.com","description":"Learn what affects thermostat replacement costs, how to spot failure symptoms, and when to handle the job yourself or call a shop. Get clear, practical tips to save money and keep your engine running at the right temperature.","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\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/","og_locale":"en_US","og_type":"article","og_title":"Thermostat Replacement: Cost, DIY Steps, and When to Call a Shop - In The Garage with CarParts.com","og_description":"Learn what affects thermostat replacement costs, how to spot failure symptoms, and when to handle the job yourself or call a shop. Get clear, practical tips to save money and keep your engine running at the right temperature.","og_url":"https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/","og_site_name":"In The Garage with CarParts.com","article_publisher":"https:\/\/www.facebook.com\/carpartscom","article_author":"https:\/\/www.facebook.com\/carpartscom","article_published_time":"2025-11-07T03:48:24+00:00","article_modified_time":"2025-11-07T03:48:28+00:00","og_image":[{"width":900,"height":946,"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/stuck-open-thermostat-e1762485901990.jpg","type":"image\/jpeg"}],"author":"CarParts.com Research Team, Richard McCuistian, ASE Certified Master Automobile Technician","twitter_card":"summary_large_image","twitter_creator":"@https:\/\/twitter.com\/CarPartscom","twitter_site":"@carpartscom","twitter_misc":{"Written by":"CarParts.com Research Team","Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/#article","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/"},"author":[{"@type":"Person","$id":"1651","name":"CarParts.com Research Team","jobTitle":"Expert Automotive Writer","description":"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/thecpteam\/","sameAs":"https:\/\/www.facebook.com\/carpartscom, https:\/\/twitter.com\/CarPartscom, https:\/\/www.youtube.com\/@CarPartscomOfficial\/, https:\/\/www.instagram.com\/carpartscom\/"},{"@type":"Person","$id":"1651","name":"Richard McCuistian","jobTitle":"ASE Master Automobile Technician","description":"Richard McCuistian has worked for nearly 50 years in the automotive field as a professional technician, an instructor, and a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others. Richard is ASE certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/richardmccuistian\/","sameAs":"https:\/\/www.linkedin.com\/in\/richard-mccuistian-2681891b\/, https:\/\/www.youtube.com\/user\/McCuistian"}],"headline":"Thermostat Replacement: Cost, DIY Steps, and When to Call a Shop","datePublished":"2025-11-07T03:48:24+00:00","dateModified":"2025-11-07T03:48:28+00:00","mainEntityOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/"},"wordCount":1253,"commentCount":0,"publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/stuck-open-thermostat-e1762485901990.jpg","keywords":["thermostat"],"articleSection":["Auto Repair","Cooling System","DIY"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/","url":"https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/","name":"Thermostat Replacement: Cost, DIY Steps, and When to Call a Shop - In The Garage with CarParts.com","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/#primaryimage"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/stuck-open-thermostat-e1762485901990.jpg","datePublished":"2025-11-07T03:48:24+00:00","dateModified":"2025-11-07T03:48:28+00:00","description":"Learn what affects thermostat replacement costs, how to spot failure symptoms, and when to handle the job yourself or call a shop. Get clear, practical tips to save money and keep your engine running at the right temperature.","inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/thermostat-replacement-cost-diy-steps-and-when-to-call-a-shop-quickref\/#primaryimage","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/stuck-open-thermostat-e1762485901990.jpg","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/stuck-open-thermostat-e1762485901990.jpg","width":900,"height":946,"caption":"stuck open thermostat"},{"@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":"https:\/\/www.carparts.com\/blog\/#\/schema\/person\/9f8a8b00e1b9f62f86295617b525e1f0","name":"CarParts.com Research Team","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg485c93be26f8b27acc17cbe4a2313397","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg","caption":"CarParts.com Research Team"},"description":"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.","sameAs":["https:\/\/www.carparts.com\/blog\/author\/thecpteam\/","https:\/\/www.facebook.com\/carpartscom","https:\/\/www.instagram.com\/carpartscom\/","https:\/\/x.com\/https:\/\/twitter.com\/CarPartscom","https:\/\/www.youtube.com\/@CarPartscomOfficial\/"],"url":"https:\/\/www.carparts.com\/blog\/author\/thecpteam\/"}]}},"featured_image_src":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/stuck-open-thermostat-600x400.jpg","featured_image_src_square":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/11\/stuck-open-thermostat-600x600.jpg","author_info":{"display_name":"CarParts.com Research Team","author_link":"https:\/\/www.carparts.com\/blog\/author\/thecpteam\/"},"authors":[{"term_id":2607,"user_id":1651,"is_guest":0,"slug":"thecpteam","display_name":"CarParts.com Research Team","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":2985,"user_id":1646,"is_guest":0,"slug":"richardmccuistian","display_name":"Richard McCuistian, ASE Certified Master Automobile Technician","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/richard-mccuistian.png","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/richard-mccuistian.png"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/185115","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\/1651"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/comments?post=185115"}],"version-history":[{"count":0,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/185115\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media\/185118"}],"wp:attachment":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media?parent=185115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/categories?post=185115"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/tags?post=185115"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=185115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}