{"id":81886,"date":"2023-03-17T07:19:38","date_gmt":"2023-03-17T14:19:38","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=81886"},"modified":"2024-12-17T19:07:20","modified_gmt":"2024-12-18T03:07:20","slug":"symptoms-of-a-faulty-ignition-relay","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/symptoms-of-a-faulty-ignition-relay\/","title":{"rendered":"Symptoms of a Faulty Ignition Relay"},"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-column81886_f866e4-03 > .kt-inside-inner-col,.kadence-column81886_f866e4-03 > .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-column81886_f866e4-03 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column81886_f866e4-03 > .kt-inside-inner-col{flex-direction:column;}.kadence-column81886_f866e4-03 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column81886_f866e4-03 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column81886_f866e4-03{position:relative;}@media all and (max-width: 1024px){.kadence-column81886_f866e4-03 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column81886_f866e4-03 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column81886_f866e4-03 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-8030a4  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-c9158c\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading81886_d71545-c4, .wp-block-kadence-advancedheading.kt-adv-heading81886_d71545-c4[data-kb-block=\"kb-adv-heading81886_d71545-c4\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading81886_d71545-c4 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading81886_d71545-c4[data-kb-block=\"kb-adv-heading81886_d71545-c4\"] 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-heading81886_d71545-c4 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading81886_d71545-c4[data-kb-block=\"kb-adv-heading81886_d71545-c4\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading81886_d71545-c4 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading81886_d71545-c4\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Not all vehicles have an ignition relay, per se. GM vehicles are the most likely to have an actual ignition relay which powers up a bus that provides voltage to more than just the ignition coils.<\/li>\n\n\n\n<li>Some of the symptoms of a bad ignition relay include an unresponsive ignition switch, stalling, and a drained battery. Your vehicle can also start intermittently.<\/li>\n\n\n\n<li>A brand-new ignition relay typically costs around $10 to $100.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>GM vehicles are the most likely domestics to have an actual &ldquo;ignition relay&rdquo; (<em>see schematic<\/em>). The ignition relay on this platform powers up a bus that provides voltage to far more than just the ignition coils.<\/p>\n\n\n\n<p>Note that not all vehicles have an &ldquo;ignition relay&rdquo; per se. At its base, the ignition system refers to the elements that provide the spark through the ignition coil.<\/p>\n\n\n\n<p>In that case, the ignition relay would power up the coils (like the ASD relay on a Chrysler-based platform) and the trigger for the coils will come from a module or the PCM.<\/p>\n\n\n\n<p>When we think of the &ldquo;ignition switch,&rdquo; we&rsquo;re talking about a switch that does a lot more than simply energizing the ignition system.<\/p>\n\n\n\n<p>Early fuel-injected Ford engines had an EEC relay to power up the engine controller and a separate fuel pump relay for that purpose. However, the ignition coil was directly powered from the switch and not through a relay. So, on a system wired like those Fords, the term &ldquo;Ignition Relay&rdquo; is meaningless because those Fords have no ignition relay.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"942\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/ignition-relay-schematic-1024x942.jpg\" alt=\"GM ignition relay schematic diagram\" class=\"wp-image-82578\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/ignition-relay-schematic-1024x942.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/ignition-relay-schematic-300x276.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/ignition-relay-schematic-768x707.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/ignition-relay-schematic-150x138.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/ignition-relay-schematic.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Ignition relay schematic of a GM vehicle | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Faulty Ignition Relay Symptoms<\/h2>\n\n\n\n<p>Like most electronic components in your vehicle, the ignition relay can fail over time. If it fails, it might exhibit symptoms such as the following:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Unresponsive Ignition Switch<\/h3>\n\n\n\n<p>If nothing happens when you turn the key to the start position, the ignition relay might be to blame. This may be caused by a worn-out electromagnet inside the relay or by corroded contacts that prevent current from flowing.<\/p>\n\n\n\n<p>You might also hear a click from the ignition relay when you turn the ignition switch. This is the sound of the electromagnet trying to complete the circuit. Take note that this issue can also be caused by a flat battery.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">The Vehicle Starts Intermittently<\/h3>\n\n\n\n<p>Corrosion and residue buildup inside the relay can sometimes restrict the flow of the current, which may lead to the ignition switch functioning intermittently. As a result, you might also only be able to start your vehicle intermittently.<\/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<h3 class=\"wp-block-heading\">Stalling<\/h3>\n\n\n\n<p>Since the ignition relay also sends power to the fuel pump and ignition coils, failure to send power to these components will cause the engine to <a href=\"https:\/\/www.carparts.com\/blog\/car-shuts-off-while-driving-causes-what-to-do\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"stall\">stall<\/a>. Sometimes, the engine may start again if the faulty relay cools down, but it will likely stall again when the relay heats up.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Drained Battery<\/h3>\n\n\n\n<p>If the ignition relay has shorted, it might keep the <a href=\"https:\/\/www.carparts.com\/battery\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"battery\">battery<\/a> connected to the ignition and fuel systems. This can cause the battery to continuously power components like the fuel pump and ignition coils, which can drain the battery and cause faster <a href=\"https:\/\/www.carparts.com\/blog\/common-fuel-pump-symptoms\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"wear on the fuel pump\">wear on the fuel pump<\/a>.<\/p>\n\n\n\n<p>The ignition relay might just be a small component inside your fuse box, but it provides power to a lot of critical components. This is why a faulty one can prevent you from using your vehicle. Make sure to get a replacement ignition relay as soon as you can to get your car back on the road.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"679\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/03\/car-ignition-switch-1024x679.jpg\" alt=\"female hand inserting keys in the ignition switch\" class=\"wp-image-81892\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/03\/car-ignition-switch-1024x679.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/03\/car-ignition-switch-300x199.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/03\/car-ignition-switch-768x509.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/03\/car-ignition-switch-150x99.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/03\/car-ignition-switch.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Your vehicle might be exhibiting ignition relay issues if nothing happens when you turn the key to the start position.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How Much Does a Replacement Ignition Relay Cost?<\/h2>\n\n\n\n<p>A brand-new ignition relay typically costs around $10 to $100. The price largely depends on the specifications of the ignition relay and the vehicle for which it is made.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where To Get A New Ignition Relay For Your Vehicle<\/h2>\n\n\n\n<p>A faulty relay can cause serious damage to your vehicle, so don&rsquo;t put off replacing it. Problems like stalling, drained batteries, and difficulty starting the engine can make driving a hassle. Fortunately, CarParts.com is here to help.<\/p>\n\n\n\n<p>Go to <a href=\"https:\/\/www.carparts.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"CarParts.com\">CarParts.com<\/a>, search for ignition relays, and narrow down the catalog to compatible parts using the vehicle selector. Use our filters to view the ignition relays with your preferred brand and price range. We have everything sorted out for you, so you can place your order and check out securely with just a few clicks.<\/p>\n\n\n\n<p>Our wide selection of ignition relays are available at competitive prices and ready to ship from strategically located warehouses across the US. If you have questions, don&rsquo;t hesitate to contact our round-the-clock customer service team for assistance.<\/p>\n\n\n\n<p>Don&rsquo;t wait for your ignition relay to cause problems with costly fixes before getting it replaced. Check out our excellent collection of <a href=\"https:\/\/www.carparts.com\/ignition-relay\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"ignition relays\">ignition relays<\/a> at CarParts.com.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>GM vehicles are the most likely domestics to have an actual &ldquo;ignition relay&rdquo; (see schematic). The ignition relay on this&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/symptoms-of-a-faulty-ignition-relay\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":81890,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":true,"_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":[52,3744],"tags":[3728],"ppma_author":[2607,2985],"class_list":{"0":"post-81886","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-diy","8":"category-ignition-system","9":"tag-ignition-relay","10":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Symptoms of a Faulty Ignition Relay - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"An ignition relay is a small but important electrical vehicle component. 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