{"id":92721,"date":"2023-09-20T00:17:53","date_gmt":"2023-09-20T07:17:53","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=92721"},"modified":"2023-11-09T22:38:05","modified_gmt":"2023-11-10T06:38:05","slug":"where-is-the-cts-located","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/where-is-the-cts-located\/","title":{"rendered":"Where Is the CTS Located?"},"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\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_68f12b-a2 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_68f12b-a2 > .kt-inside-inner-col,.kadence-column_68f12b-a2 > .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_68f12b-a2 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_68f12b-a2 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_68f12b-a2 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_68f12b-a2 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_68f12b-a2{position:relative;}@media all and (max-width: 1024px){.kadence-column_68f12b-a2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_68f12b-a2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_68f12b-a2 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-8d80e7  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-c98f3a\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_97ecb8-55, .wp-block-kadence-advancedheading.kt-adv-heading_97ecb8-55[data-kb-block=\"kb-adv-heading_97ecb8-55\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_97ecb8-55 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_97ecb8-55[data-kb-block=\"kb-adv-heading_97ecb8-55\"] 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_97ecb8-55 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_97ecb8-55[data-kb-block=\"kb-adv-heading_97ecb8-55\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_97ecb8-55 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_97ecb8-55\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>The engine coolant temperature sensor (CTS) sits near the thermostat housing on most vehicles.<\/li><li>Some engines have a cylinder head temp sensor that does the job of the CTS and the cylinder head temperature (CHT) sensor.<\/li><li>The CTS sends engine temperature information to the powertrain control module (PCM) for setting spark timing, fuel mixture, idle air control position, and other processes.<\/li><li>You can access the CTS by removing the pressure cap, draining the cooling system, and pushing or lifting the safety clip that keeps the sensor attached.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Q: Where Is the coolant temperature sensor (CTS) Typically Located?<\/h2>\n\n\n\n<p><strong>A: There are, on some engines, two engine temperature sensors. The engine coolant temperature sensor (CTS) is located near the thermostat housing on most vehicles. The cylinder head temperature sensor (CHT) is located on the side of the head that is farthest from the exhaust. But the cylinder head temp sensor serves both purposes on some engines, and it&rsquo;s subject to be found in various places on one or the other cylinder head.<\/strong><\/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\/2023\/10\/cylinder-head-temp-sensor-location-1024x322.jpg\" alt=\"image showing the cylinder head temp sensor locations\" class=\"wp-image-95236\" width=\"1024\" height=\"322\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/cylinder-head-temp-sensor-location-1024x322.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/cylinder-head-temp-sensor-location-300x94.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/cylinder-head-temp-sensor-location-768x242.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/cylinder-head-temp-sensor-location-150x47.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/cylinder-head-temp-sensor-location.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Illustrations showing various locations of the cylinder head temperature sensor. | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<p><strong><em>Caution:<\/em><\/strong><em> To prevent serious burns, never open a hot cooling system.<\/em><\/p>\n\n\n\n<p>The CTS sends engine temperature information to the <a href=\"https:\/\/www.carparts.com\/blog\/car-pcm-meaning-symptoms-of-failure-and-more\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"powertrain control module\">powertrain control module<\/a> (PCM) for proper spark timing and fuel mixture. The PCM also uses CTS readings for idle air control position, O2 sensor closed-loop status, canister purge on\/off times, and idle speed.<\/p>\n\n\n\n<p>A CTS with a poor connection at the wiring connector will cause the PCM to supply an <a href=\"https:\/\/www.carparts.com\/blog\/what-is-a-good-air-fuel-ratio-chart-included\/#How_Do_I_Know_if_I_am_Running_Rich_or_Lean\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"overly rich fuel mixture\">overly rich fuel mixture<\/a>. Meanwhile, a shorted CTS or one that has a low resistance will cause the PCM to supply an overly lean fuel mixture, resulting in drivability issues.<\/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\">Tips on How to Access the CTS<\/h2>\n\n\n\n<p>There are a few things you should inspect before tinkering with the <a href=\"https:\/\/www.carparts.com\/coolant-temperature-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"coolant temperature sensor\">coolant temperature sensor<\/a>.<\/p>\n\n\n\n<p>Make sure that the cooling system is properly filled, the <a href=\"https:\/\/www.carparts.com\/radiator\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"radiator\">radiator<\/a> has the right amount of pressure, there is a proper <a href=\"https:\/\/www.carparts.com\/blog\/can-you-put-water-in-the-coolant-tank\/#How_to_Choose_the_Right_Coolant_for_Your_Car\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"water-antifreeze mixture\">water-antifreeze mixture<\/a>, and the cooling fan is operating as it should.<\/p>\n\n\n\n<p>After inspecting all of these, you can proceed with removing the CTS.<\/p>\n\n\n\n<p>Protective eyewear and gloves are essential when removing the CTS. To begin, remove the pressure cap to relieve the system of residual pressure and drain the <a href=\"https:\/\/www.carparts.com\/blog\/a-short-course-on-cooling-systems\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"cooling system\">cooling system<\/a> to access the sensor.<\/p>\n\n\n\n<p>A safety clip is typically used to keep the sensor in place, and you only need to push or lift it to release the sensor. After removing the sensor, check the electrical terminal for signs of corrosion. You might need to replace the sensor pigtail if it&rsquo;s corroded.<\/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\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Q: Where Is the coolant temperature sensor (CTS) Typically Located? A: There are, on some engines, two engine temperature sensors&#8230;. <a href=\"https:\/\/www.carparts.com\/blog\/where-is-the-cts-located\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":92723,"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":[1252],"ppma_author":[2607,2985],"class_list":{"0":"post-92721","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-cooling-system","8":"category-diy","9":"tag-coolant-temperature-sensor","10":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Where Is the CTS Located? - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Where is the coolant temperature sensor usually located? 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Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust."},{"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"},"author_category":"","user_url":"https:\/\/www.carparts.com\/blog\/author\/richardmccuistian\/","last_name":"McCuistian","first_name":"Richard","job_title":"ASE Certified Master Automobile Technician","description":"<div class=\"auth-social-links\"><a href=\"https:\/\/www.linkedin.com\/in\/richard-mccuistian-2681891b\/\" class=\"btn\" rel=\"nofollow noopener\" target=\"_blank\" aria-label=\"linkedin\" aria-labelledby=\"linkedin\">LinkedIn<\/a><a href=\"https:\/\/www.youtube.com\/user\/McCuistian\" class=\"btn\" rel=\"nofollow noopener\" target=\"_blank\" aria-label=\"instagram\" aria-labelledby=\"instagram\">Youtube<\/a><\/div>\r\n\r\nRichard McCuistian grew up in Alabama learning from his father who ran an automotive repair shop. Richard has worked for nearly 50 years in the automotive field as a professional technician, an instructor, a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others (published every year since May 2000). He has developed training courses and written or edited training material for companies in the U.S. Canada, and the Netherlands, and even Bulgaria. He maintained an \u201cask a mechanic\u201d website for 10 years answering questions emailed to him from all over the world.\r\n\r\nRichard has an instructional automotive YouTube channel \u201cMcCuistian\u201d with 13,500 subscribers and over 1,300 videos. Much of his professional work requires photography and videography in shop environments, but Richard also enjoys taking pictures of landscapes, skyscapes, old barns and houses, small towns. He has produced a coffee table book of digital watercolors called \u201cMemories of South Alabama\u201d created from his personal photos, along with a dozen Christian fiction short original novels and a collection of short stories, all available in Kindle or softcover format. Richard has written a 2,500-word Bible study every week for the past 20 years and uses it to teach a small group at his church every Sunday morning.\r\n\r\n<strong>Credentials:<\/strong>\r\n\r\n<ul class=\"author-list\">\r\n<li><p>ASE Certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.<\/p><\/li>\r\n<li><p>Professional Mechanic\/Technician for 25 years with experience on diesel and gasoline engines, vehicles and equipment (including hydraulics).<\/p><\/li>\r\n<li><p>Spent 5 years in fleet maintenance, 20 years in independent shops and dealerships (VW, Mazda, Renault, Jeep, Ford, Lincoln), specializing in driveability and electronics for the last 14 years of his career at the same dealership.<\/p><\/li>\r\n<li><p>Senior Contributing Editor at Motor Age Magazine, first published in Motor Age in May of 2000 and every year since. He has won two International Automotive Media Awards for technical articles published in trade magazines.<\/p><\/li>\r\n<li><p>Has attended hundreds of hours of automotive training from OEMs including GM, Volkswagen, Mazda, Renault, Jeep, Chrysler, as well as additional training at events like KC Vision and MACS (Mobile Air Climate Systems Association).<\/p><\/li>\r\n<li><p>Taught college level auto mechanics for 19 years.<\/p><\/li>\r\n<li><p>Has written for automotive training companies (including course development work for training companies in Canada and the Netherlands) and has been hired to teach professional trade show technician courses at multiple training events in Texas and Alabama.<\/p><\/li>\r\n<li><p>While still teaching at the college level, Richard launched a new automotive program in Geneva, Alabama, setting up a dual enrollment department in a new building, organizing the shop and classroom, teaching morning classes to high school students for 2 years while still teaching at the college in the afternoon.<\/p><\/li>\r\n<li><p>Richard\u2019s college program at Lurleen B. Wallace Community College worked at professional shop speed during his tenure to prepare graduates for production level work in the real world.<\/p><\/li>\r\n<\/ul>"}],"_links":{"self":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/92721","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\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/comments?post=92721"}],"version-history":[{"count":0,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/92721\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media\/92723"}],"wp:attachment":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media?parent=92721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/categories?post=92721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/tags?post=92721"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=92721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}