{"id":2420,"date":"2022-07-16T02:55:27","date_gmt":"2022-07-16T02:55:27","guid":{"rendered":"https:\/\/mycarmakesnoise.com\/?p=2420"},"modified":"2023-01-09T03:40:35","modified_gmt":"2023-01-09T03:40:35","slug":"signs-of-a-bad-egr-valve","status":"publish","type":"post","link":"https:\/\/mycarmakesnoise.com\/engine\/signs-of-a-bad-egr-valve\/","title":{"rendered":"Signs of a Bad EGR Valve"},"content":{"rendered":"\n<p>Has your car been running a bit rough lately? Perhaps your fuel consumption is up, and your performance is down? If that&#8217;s the case, you might have a bad EGR valve.<\/p>\n\n\n\n<p>Your <a href=\"https:\/\/mycarmakesnoise.com\/engine\/how-much-does-an-egr-valve-replacement-cost\/\">EGR valve<\/a> is a critical component of your car&#8217;s engine and exhaust system. Keeping it in top shape is paramount. <\/p>\n\n\n\n<p><strong>A few of the most common signs of a bad EGR valve are low fuel economy, abnormal engine sounds, and decreased performance.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/mycarmakesnoise.com\/wp-content\/uploads\/2022\/06\/Signs-of-a-Bad-EGR-Valve-1024x682.jpg\" alt=\"Signs of a Bad EGR Valve\" class=\"wp-image-2421\" srcset=\"https:\/\/mycarmakesnoise.com\/wp-content\/uploads\/2022\/06\/Signs-of-a-Bad-EGR-Valve-1024x682.jpg 1024w, https:\/\/mycarmakesnoise.com\/wp-content\/uploads\/2022\/06\/Signs-of-a-Bad-EGR-Valve-300x200.jpg 300w, https:\/\/mycarmakesnoise.com\/wp-content\/uploads\/2022\/06\/Signs-of-a-Bad-EGR-Valve-768x512.jpg 768w, https:\/\/mycarmakesnoise.com\/wp-content\/uploads\/2022\/06\/Signs-of-a-Bad-EGR-Valve-1536x1024.jpg 1536w, https:\/\/mycarmakesnoise.com\/wp-content\/uploads\/2022\/06\/Signs-of-a-Bad-EGR-Valve.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">Contents<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mycarmakesnoise.com\/engine\/signs-of-a-bad-egr-valve\/#What_Is_an_EGR_Valve\" title=\"What Is an EGR Valve?\">What Is an EGR Valve?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mycarmakesnoise.com\/engine\/signs-of-a-bad-egr-valve\/#What_Does_a_Bad_EGR_Sound_Like\" title=\"What Does a Bad EGR Sound Like?\">What Does a Bad EGR Sound Like?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mycarmakesnoise.com\/engine\/signs-of-a-bad-egr-valve\/#Symptoms_of_a_Bad_EGR_Valve\" title=\"Symptoms of a Bad EGR Valve\">Symptoms of a Bad EGR Valve<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycarmakesnoise.com\/engine\/signs-of-a-bad-egr-valve\/#What_Problems_Does_a_Bad_EGR_Valve_Cause\" title=\"What Problems Does a Bad EGR Valve Cause?\">What Problems Does a Bad EGR Valve Cause?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mycarmakesnoise.com\/engine\/signs-of-a-bad-egr-valve\/#Will_a_Faulty_EGR_Damage_Engine\" title=\"Will a Faulty EGR Damage Engine?\">Will a Faulty EGR Damage Engine?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mycarmakesnoise.com\/engine\/signs-of-a-bad-egr-valve\/#Can_a_Car_Run_With_a_Bad_EGR_Valve\" title=\"Can a Car Run With a Bad EGR Valve?\">Can a Car Run With a Bad EGR Valve?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mycarmakesnoise.com\/engine\/signs-of-a-bad-egr-valve\/#How_To_Prevent_EGR_Valve_Failure\" title=\"How To Prevent EGR Valve Failure\">How To Prevent EGR Valve Failure<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_an_EGR_Valve\"><\/span><a><\/a>What Is an EGR Valve?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The exhaust gas recirculation valve is the part of your exhaust that helps reduce <a href=\"https:\/\/www.bts.gov\/content\/estimated-national-average-vehicle-emissions-rates-vehicle-vehicle-type-using-gasoline-and\" target=\"_blank\" rel=\"noreferrer noopener\">emissions<\/a>. <\/p>\n\n\n\n<p>It does so by recirculating exhaust fumes back through your system. <\/p>\n\n\n\n<p>Since they test emissions at vehicle inspection centers, your EGR valve must be in working order.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>What Does EGR Valve Do?<\/h3>\n\n\n\n<p>The EGR valve takes exhaust gas and recirculates it into your engine\u2019s combustion chamber. In doing so, the EGR valve helps keep your engine cooler. <\/p>\n\n\n\n<p>Since engine heat combined with O2 are the main components in pollutant gas, the EGR valve plays a significant role in preventing pollution.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Where Is the EGR Valve Located?<\/h3>\n\n\n\n<p>When you pop the hood on your car, you should be able to see the EGR valve near the <a href=\"https:\/\/mycarmakesnoise.com\/engine\/all-about-intake-manifold-gasket-failure-symptoms-replacement-cost\/\">intake manifold<\/a>. A tube will connect the EGR valve and exhaust manifolds. <\/p>\n\n\n\n<p>When you find the tube, follow it up to the EGR valve.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>When Does EGR Valve Open?<\/h3>\n\n\n\n<p>Your EGR valve opens and closes based on the amount of power coming from your engine. The valve will be closed at idle or when you first start up. <\/p>\n\n\n\n<p>However, once your engine is under load, the valve will open to help lower your engine&#8217;s temperature. <\/p>\n\n\n\n<p>Each time it opens, it sends exhaust gas back through the intake manifold, allowing the air to cool.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Does_a_Bad_EGR_Sound_Like\"><\/span><a><\/a>What Does a Bad EGR Sound Like?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Like most engine issues, the tell-tale sign of a bad EGR valve is a loud rattling or knocking noise. <\/p>\n\n\n\n<p>A rough idle when you start your vehicle is an excellent auditory indicator of a bad EGR valve.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Symptoms_of_a_Bad_EGR_Valve\"><\/span><a><\/a>Symptoms of a Bad EGR Valve<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Even if you&#8217;re unfamiliar with cars, the symptoms of a bad EGR valve can be easy to spot. <\/p>\n\n\n\n<p>If you notice any of the following symptoms, reach out to a trusted mechanic right away.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Rough Idle<\/h3>\n\n\n\n<p>As previously mentioned, a <a href=\"https:\/\/mycarmakesnoise.com\/issues\/rough-idle-causes-and-fixes\/\">rough idle<\/a> could simply be loud. On the other hand, a rough idle could consist of shaking or vibrating when you start your car. <\/p>\n\n\n\n<p>This particular symptom could indicate several engine issues, but it\u2019s a clear indicator of a bad EGR valve.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Overheating Engine<\/h3>\n\n\n\n<p>If your EGR valve is clogged or stuck closed, it isn&#8217;t allowing your engine to cool properly. When your engine is unable to regulate its temperature, it could overheat. <\/p>\n\n\n\n<p>You&#8217;ll also probably smell unburnt fuel and hear the <a href=\"https:\/\/mycarmakesnoise.com\/engine\/engine-knocking-sound-at-idle-causes-and-how-to-fix-it\/\">engine knocking<\/a> as your engine gets hotter.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Check Engine Light Illuminated<\/h3>\n\n\n\n<p>Often the bane of a car owner&#8217;s existence, the <a href=\"https:\/\/mycarmakesnoise.com\/electronics\/check-engine-light-after-oil-change-causes-and-how-to-reset-it\/\">Check Engine light<\/a> is another sign your EGR valve might be defective. Your car is full of sensors, including in your engine. <\/p>\n\n\n\n<p>If your EGR is faulty or not working correctly, one of those sensors might detect that.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Frequent Stalling<\/h3>\n\n\n\n<p>If you&#8217;ve noticed your car stalling out when you&#8217;re idling, it could be due to your EGR valve. <\/p>\n\n\n\n<p>When your EGR valve is stuck open, it&#8217;s continually letting exhaust gasses through. <\/p>\n\n\n\n<p>That could lead your engine to stall out when it\u2019s not under load.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Decreased Engine Power<\/h3>\n\n\n\n<p>An engine that isn&#8217;t working to its full capacity will often have decreased power. Your EGR valve is one engine component that can cause low power. <\/p>\n\n\n\n<p>If your EGR valve is faulty, you could see rough acceleration or sluggishness when you step on the accelerator. <\/p>\n\n\n\n<p>You might hear the &#8220;vroom&#8221; of acceleration, but your car will feel like it&#8217;s struggling.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"692\" src=\"https:\/\/mycarmakesnoise.com\/wp-content\/uploads\/2022\/06\/Signs-of-a-Bad-EGR-Valve-2-1024x692.jpg\" alt=\"Signs of a Bad EGR Valve \" class=\"wp-image-2422\" srcset=\"https:\/\/mycarmakesnoise.com\/wp-content\/uploads\/2022\/06\/Signs-of-a-Bad-EGR-Valve-2-1024x692.jpg 1024w, https:\/\/mycarmakesnoise.com\/wp-content\/uploads\/2022\/06\/Signs-of-a-Bad-EGR-Valve-2-300x203.jpg 300w, https:\/\/mycarmakesnoise.com\/wp-content\/uploads\/2022\/06\/Signs-of-a-Bad-EGR-Valve-2-768x519.jpg 768w, https:\/\/mycarmakesnoise.com\/wp-content\/uploads\/2022\/06\/Signs-of-a-Bad-EGR-Valve-2-1536x1037.jpg 1536w, https:\/\/mycarmakesnoise.com\/wp-content\/uploads\/2022\/06\/Signs-of-a-Bad-EGR-Valve-2.jpg 1999w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Problems_Does_a_Bad_EGR_Valve_Cause\"><\/span><a><\/a>What Problems Does a Bad EGR Valve Cause?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A bad EGR valve can cause several problems for your vehicle. <\/p>\n\n\n\n<p>Specifically, it can affect your engine in the following ways:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Misfire<\/h3>\n\n\n\n<p>A faulty EGR valve can cause your engine to misfire on startup or while idling. <\/p>\n\n\n\n<p>Since the EGR regulates your engine&#8217;s temperature, fuel combustion can be affected when the EGR isn&#8217;t working. <\/p>\n\n\n\n<p>When that happens, your engine might stutter, and you&#8217;ll hear a bang, pop, or backfire.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Failed Emissions Inspection<\/h3>\n\n\n\n<p>Most states require <a href=\"https:\/\/www.epa.gov\/state-and-local-transportation\/vehicle-emissions-inspection-and-maintenance-im-information-state\" target=\"_blank\" rel=\"noreferrer noopener\">emissions inspections<\/a> regularly. In some states, it&#8217;s one of the only things they check. If your car fails an emissions inspection, it&#8217;s likely due to a stuck or clogged EGR valve. <\/p>\n\n\n\n<p>You&#8217;ll need to repair it before your vehicle can pass inspection.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Increased Fuel Consumption<\/h3>\n\n\n\n<p>Another common symptom of a bad EGR valve is decreased fuel economy. This typically occurs when the EGR valve is stuck open. An open valve keeps the engine cooler than necessary. <\/p>\n\n\n\n<p>A cooler engine requires more power to ignite your fuel. When that happens, your vehicle will need more fuel to work properly.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Fuel Odor<\/h3>\n\n\n\n<p>A faulty EGR valve will cause more hydrocarbons to leak out of your engine into your exhaust. <\/p>\n\n\n\n<p>Also, since the bad valve won&#8217;t allow all the fuel to burn, you might <a href=\"https:\/\/mycarmakesnoise.com\/smells-clean\/reasons-why-your-car-smells-like-burning-rubber-with-solutions\/\">smell unburned gasoline when your car<\/a> is running. This is also a sign of high fuel consumption.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Will_a_Faulty_EGR_Damage_Engine\"><\/span><a><\/a>Will a Faulty EGR Damage Engine?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A faulty EGR can cause your engine to overheat to dangerous temperatures. <\/p>\n\n\n\n<p>An engine that&#8217;s too hot can cause pistons to seize or cause damage to the EGR solenoid. <\/p>\n\n\n\n<p>Your engine could seize entirely if you don&#8217;t address the problem promptly. Once an <a href=\"https:\/\/mycarmakesnoise.com\/engine\/seized-engine-causes-symptoms-and-fix\/\">engine seizes<\/a>, there&#8217;s typically no coming back.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Can_a_Car_Run_With_a_Bad_EGR_Valve\"><\/span><a><\/a>Can a Car Run With a Bad EGR Valve?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A car can run with a bad EGR valve, but not indefinitely. Eventually, your engine will succumb to too-high temperatures. You&#8217;ll also have decreased performance and higher fuel costs. <\/p>\n\n\n\n<p>To ensure your vehicle&#8217;s longevity, you should take it to a mechanic as soon as you suspect an EGR valve issue.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_To_Prevent_EGR_Valve_Failure\"><\/span><a><\/a>How To Prevent EGR Valve Failure<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The best way to prevent EGR valve failure is to keep up with scheduled maintenance. <\/p>\n\n\n\n<p>Whether you do your own maintenance or take it to a mechanic, the EGR valve should be part of your inspection.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Has your car been running a bit rough lately? Perhaps your fuel consumption is up, and your performance is down? If that&#8217;s the case, you&#8230;<\/p>\n","protected":false},"author":2,"featured_media":2421,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rank_math_lock_modified_date":false,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-2420","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-engine","wpcat-8-id"],"_links":{"self":[{"href":"https:\/\/mycarmakesnoise.com\/wp-json\/wp\/v2\/posts\/2420"}],"collection":[{"href":"https:\/\/mycarmakesnoise.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mycarmakesnoise.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mycarmakesnoise.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mycarmakesnoise.com\/wp-json\/wp\/v2\/comments?post=2420"}],"version-history":[{"count":2,"href":"https:\/\/mycarmakesnoise.com\/wp-json\/wp\/v2\/posts\/2420\/revisions"}],"predecessor-version":[{"id":2775,"href":"https:\/\/mycarmakesnoise.com\/wp-json\/wp\/v2\/posts\/2420\/revisions\/2775"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mycarmakesnoise.com\/wp-json\/wp\/v2\/media\/2421"}],"wp:attachment":[{"href":"https:\/\/mycarmakesnoise.com\/wp-json\/wp\/v2\/media?parent=2420"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mycarmakesnoise.com\/wp-json\/wp\/v2\/categories?post=2420"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mycarmakesnoise.com\/wp-json\/wp\/v2\/tags?post=2420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}