{"id":16966,"date":"2020-09-29T03:34:37","date_gmt":"2020-09-29T10:34:37","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=16966"},"modified":"2024-01-19T21:52:19","modified_gmt":"2024-01-20T05:52:19","slug":"intake-manifold-runner-valves-what-you-need-to-know","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/intake-manifold-runner-valves-what-you-need-to-know\/","title":{"rendered":"Intake Manifold Runner Valves: What You Need to Know"},"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_b2a11f-a1 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_b2a11f-a1 > .kt-inside-inner-col,.kadence-column_b2a11f-a1 > .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_b2a11f-a1 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_b2a11f-a1 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_b2a11f-a1 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_b2a11f-a1 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_b2a11f-a1{position:relative;}@media all and (max-width: 1024px){.kadence-column_b2a11f-a1 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_b2a11f-a1 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_b2a11f-a1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-135da0  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-c87665\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_82029c-58, .wp-block-kadence-advancedheading.kt-adv-heading_82029c-58[data-kb-block=\"kb-adv-heading_82029c-58\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_82029c-58 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_82029c-58[data-kb-block=\"kb-adv-heading_82029c-58\"] 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_82029c-58 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_82029c-58[data-kb-block=\"kb-adv-heading_82029c-58\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_82029c-58 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_82029c-58\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>An intake manifold runner control (IMRC) valve is part of the system that opens and closes the flaps inside variable intake manifolds.<\/li><li>An illuminated check engine light, engine performance issues, and reduced fuel economy are some common symptoms of a faulty IMRC valve.<\/li><li>A bad IMRC valve can damage other parts of your vehicle, so it isn&rsquo;t safe to drive without replacing it first.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Your car has an intake manifold that distributes air into the engine&rsquo;s cylinders. Traditional designs have a fixed length and width. <\/p>\n\n\n\n<p>But now, some vehicles have a variable intake manifold (also known as an intake manifold runner control system). The updated design varies the length of the manifold&rsquo;s runners with the help of an intake manifold runner control (IMRC) valve. <\/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\/2020\/09\/intake-manifold-runner-valve-1024x1024.png\" alt=\"intake manifold runner valve\" class=\"wp-image-16989\" width=\"1024\" height=\"1024\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-1024x1024.png 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-300x300.png 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-768x768.png 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-75x75.png 75w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-600x600.png 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-928x928.png 928w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-150x150.png 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve.png 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The IMRC valve is the part of the intake manifold system that opens and closes the flaps.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How Does a Variable Intake Manifold Work? <\/h2>\n\n\n\n<p>Before you can understand the IMRC valve, you need to know how a typical variable intake manifold works. As you might guess, the technology varies the length of the intake manifold&rsquo;s airflow passages, known as runners. <\/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<p>Varying the length of these passages allows engine performance to be fine-tuned as needed. A shorter manifold forces the airflow to undergo a tumbling effect that provides more horsepower at high engine speeds. On the other hand, a longer manifold provides more torque and better fuel economy. <\/p>\n\n\n\n<p>There are many different variable intake manifold designs in use today. Most systems have flaps (or butterfly valves) inside the manifold that vary the runner length. An electric or vacuum-operated actuator controls the flaps. <\/p>\n\n\n\n<p>On vehicles where a vacuum source is used, a solenoid supplies vacuum to the actuator.  <\/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\/2020\/09\/intake-manifold-runner-valve-system-1024x772.jpg\" alt=\"intake manifold runner valve system diagram\" class=\"wp-image-16988\" width=\"1024\" height=\"772\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-system-1024x772.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-system-300x226.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-system-768x579.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-system-150x113.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-system.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption><em>A typical variable intake manifold system with an electronic actuator<\/em>.<\/figcaption><\/figure>\n\n\n\n<p>Usually, the flaps control access to two separate pathways for airflow: one short and one long. Some vehicles may employ a different strategy, such as blocking off a portion of a single passage.<\/p>\n\n\n\n<p>Regardless of the system design, a computer&mdash;often referred to as the powertrain control module (PCM)&mdash;operates the flap actuator. Most systems use a sensor or switch to provide the PCM feedback on the position of the actuator. <\/p>\n\n\n\n<p>Also, the PCM gets data regarding vehicle operating conditions from other engine management sensors (e.g., the throttle positions sensor). The collection of sensors allow the module to make informed decisions regarding system operation. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is an Intake Manifold Runner Valve? <\/h2>\n\n\n\n<p>But wait&mdash;what is the IMRC valve exactly? The term usually refers to the IMRC actuator, but some vehicle manufacturers may use the phrase to describe the solenoid instead. <\/p>\n\n\n\n<p>Basically, the IMRC valve is the part of the system that opens and closes the flaps inside the intake manifold. Depending on the layout, the engine may have multiple IMRC valves or have only one valve. <\/p>\n\n\n\n<p>It&rsquo;s important to note that automakers have a bunch of different names for their IMRC valves. For instance, Ford often calls the device an intake manifold runner control (IMRC) valve, while Chrysler calls the component an intake manifold tuning valve. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Symptoms of a Bad Intake Manifold Runner Valve<\/h2>\n\n\n\n<p>A problem with the variable intake manifold system, such as a bad IMRC valve, can cause several problems. Here are the most common: <\/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\/2020\/09\/intake-manifold-runner-valve-image-1024x1024.jpeg\" alt=\"intake manifold runner valve image\" class=\"wp-image-16987\" width=\"1024\" height=\"1024\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-image-1024x1024.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-image-300x300.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-image-768x768.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-image-75x75.jpeg 75w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-image-600x600.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-image-928x928.jpeg 928w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-image-150x150.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/intake-manifold-runner-valve-image.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>A faulty IMRC valve can cause engine performance problems such as a rough running engine and lack of power.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Check Engine Light<\/h3>\n\n\n\n<p>When the PCM perceives a problem with the IMRC valve or its circuit, the module will turn on <a href=\"https:\/\/www.carparts.com\/blog\/why-is-my-check-engine-light-on\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"the check engine light\">the check engine light<\/a> and store a <a href=\"https:\/\/www.carparts.com\/blog\/?s=OBD-II\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"diagnostic trouble code (DTC)\">diagnostic trouble code (DTC)<\/a> in its memory. In many cases, an illuminated check engine light will be the only indicator that the valve is faulty. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Engine Performance Problems<\/h3>\n\n\n\n<p>A faulty IMRC valve can throw off the engine&rsquo;s air\/fuel mixture, leading to performance problems. Examples include a rough running engine, an unstable idle, and a lack of power. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Reduced Fuel Economy<\/h3>\n\n\n\n<p>The IMRC system is designed to boost both fuel economy and engine performance. A faulty IMRC valve can prevent proper system operation, leading to a reduction in gas mileage.  <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Can You Continue to Drive with a Bad Intake Manifold Runner Valve? <\/h2>\n\n\n\n<p>Technically, you can usually drive with a bad IMRC valve. But you shouldn&rsquo;t continue to do so for long. As previously mentioned, the problem can trigger the check engine light&mdash;and that will cause your car to fail a state emissions test.<\/p>\n\n\n\n<p>What&rsquo;s more, in some instances, a faulty IMRC valve can damage other parts of the vehicle, such as the catalytic converter. That&rsquo;s why it&rsquo;s a good idea to address the problem right away.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Get Intake Manifold Runner Valves for Your Vehicle<\/h2>\n\n\n\n<p>Don&rsquo;t underestimate the effects of an <a href=\"https:\/\/www.carparts.com\/intake-manifold-runner-valve\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"intake manifold runner valve\">intake manifold runner valve<\/a>. Besides engine issues and excessive fuel consumption, the valve could affect other parts if you don&rsquo;t replace it as soon as possible.<\/p>\n\n\n\n<p>Fortunately, getting a replacement runner valve doesn&rsquo;t have to be a hassle. At <a href=\"https:\/\/www.carparts.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"CarParts.com\">CarParts.com<\/a>, you can find and order what you need in a matter of minutes.<\/p>\n\n\n\n<p>We have a wide array of valves that fit various makes and models. Use our vehicle selector to narrow down our catalog to the ones that fit your ride. If you&rsquo;re not a fan of shopping online, you can call our toll-free hotline, and our round-the-clock customer service team will be ready to assist you.<\/p>\n\n\n\n<p>Get a new intake manifold runner valve that&rsquo;s built tough by leading aftermarket brands. Check out our selection today.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Products Mentioned in this Guide<\/h2>\n\n\n\n<div class=\"reusable-productlink\">\n\n<!-- start of editable content -->\n\n<a href=\"https:\/\/www.carparts.com\/intake-manifold-runner-valve\" target=\"_blank\" aria-label=\"intake manifold runner valve\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/repb545402_1\">\n<strong>Intake Manifold Runner Valve<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/intake-manifold\" target=\"_blank\" aria-label=\"intake manifold\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/rc31190002_1\">\n<strong>Intake Manifold<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/intake-manifold-actuator\" target=\"_blank\" aria-label=\"intake manifold actuator\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/pie701132120_1\">\n<strong>Intake Manifold Actuator<\/strong>\n<\/a>\n\n<!-- end of editable content -->\n\n<\/div>\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 has an intake manifold that distributes air into the engine&rsquo;s cylinders. Traditional designs have a fixed length and&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/intake-manifold-runner-valves-what-you-need-to-know\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":29,"featured_media":16985,"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":[52,3747],"tags":[1186,1862],"ppma_author":[2622],"class_list":{"0":"post-16966","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-diy","8":"category-engine","9":"tag-intake-manifold","10":"tag-intake-manifold-runner-valve","11":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Intake Manifold Runner Valves: What You Need to Know - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Understand how the intake manifold runner control valve works and how it aids your vehicle&#039;s intake manifold system in this article. 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