{"id":21506,"date":"2021-01-19T18:03:21","date_gmt":"2021-01-20T02:03:21","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=21506"},"modified":"2025-09-04T20:32:05","modified_gmt":"2025-09-05T03:32:05","slug":"signs-of-a-bad-water-pump-is-it-time-to-replace-yours","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/signs-of-a-bad-water-pump-is-it-time-to-replace-yours\/","title":{"rendered":"Signs of a Bad Water Pump: Is it Time to Replace Yours?"},"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-column21506_7b6f9d-3a > .kt-inside-inner-col,.kadence-column21506_7b6f9d-3a > .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-column21506_7b6f9d-3a > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column21506_7b6f9d-3a > .kt-inside-inner-col{flex-direction:column;}.kadence-column21506_7b6f9d-3a > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column21506_7b6f9d-3a > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column21506_7b6f9d-3a{position:relative;}@media all and (max-width: 1024px){.kadence-column21506_7b6f9d-3a > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column21506_7b6f9d-3a > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column21506_7b6f9d-3a inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-6fdc67  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-caad0f\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading21506_737fc9-f4, .wp-block-kadence-advancedheading.kt-adv-heading21506_737fc9-f4[data-kb-block=\"kb-adv-heading21506_737fc9-f4\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading21506_737fc9-f4 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading21506_737fc9-f4[data-kb-block=\"kb-adv-heading21506_737fc9-f4\"] 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-heading21506_737fc9-f4 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading21506_737fc9-f4[data-kb-block=\"kb-adv-heading21506_737fc9-f4\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading21506_737fc9-f4 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading21506_737fc9-f4\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A bad water pump can cause engine overheating, coolant leaks, malfunctioning heater, and an abnormal noise when the engine is running.<\/li>\n\n\n\n<li>Other symptoms include lit warning lights, like the low coolant warning, overheat warning, and the check engine light.<\/li>\n\n\n\n<li>In cases where the symptoms aren&rsquo;t as evident as they should be, you might need to pop the hood open to inspect the water pump.<\/li>\n\n\n\n<li>Your engine can overheat if you continue to drive with a bad water pump.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Your car&rsquo;s <a href=\"https:\/\/www.carparts.com\/water-pump\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"water pump\">water pump<\/a> is a fairly simple device&mdash;but it has an important job to do. As its name implies, the water pump &ldquo;pumps&rdquo; a coolant mixture through the vehicle&rsquo;s cooling system. If it weren&rsquo;t for the water pump, your car&rsquo;s engine would quickly overheat.<\/p>\n\n\n\n<p>Although the water pump is designed to last the life of the vehicle, that doesn&rsquo;t always happen. The pump may start to leak, its bearings may go bad, or its impeller may wear away from corrosion. Any of these issues will cause the pump to fail prematurely, resulting in noticeable symptoms.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/water-pump-being-held-1024x683.jpg\" alt=\"water pump being held\" class=\"wp-image-21517\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/water-pump-being-held-1024x683.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/water-pump-being-held-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/water-pump-being-held-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/water-pump-being-held-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/water-pump-being-held-scaled.jpg 2048w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/water-pump-being-held-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/water-pump-being-held-150x100.jpg 150w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Although the water pump is designed to last the life of the vehicle, that doesn&rsquo;t always happen.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Bad Water Pump Symptoms<\/h2>\n\n\n\n<p>A faulty water pump can cause several issues. If you&rsquo;re concerned that your water pump may be on it&rsquo;s way out, these are the primary symptoms to watch out for:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Engine Overheating<\/h3>\n\n\n\n<p>A water pump can develop leaks&mdash;and that can lead to a low coolant level and engine overheating. Also, a water pump that has failed internally will impede coolant circulation, causing the engine to overheat. Either scenario is bad news.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Coolant Leaks<\/h3>\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/blog\/coolant-leak-symptoms-plus-faq\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Leaks\">Leaks<\/a> are a very common problem with water pumps. The leaks may originate from the water pump itself or the pump&rsquo;s gasket.<\/p>\n\n\n\n<div class=\"rsi-card\">\n  <div class=\"rsi-thumb\">\n    <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/d_noimage.jpg\/b_white\/e_sharpen,e_auto_brightness,e_auto_contrast\/f_auto\/q_auto:eco,dpr_auto\/w_873,h_873,c_pad\/images\/rn31350003_1\">\n  <\/div>\n  <div class=\"rsi-info\">\n    <span class=\"rsi-title\">The Best Water Pump Brands: Reliable Replacements for Your Car<\/span>\n    <span class=\"rsi-desc\">See which water pump brands are best for your vehicle. Learn about application, material, and build, and find reliable replacement brands.<\/span>\n    <a href=\"https:\/\/www.carparts.com\/blog\/the-best-water-pump-brands-reliable-replacements-for-your-car-quickref\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Discover Your Options\">Discover Your Options<\/a>\n  <\/div>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">Illuminated Warning Lights<\/h3>\n\n\n\n<p>If your car&rsquo;s water pump goes out, one or more warning lights may pop up on the dash. For example, you may see the low coolant warning, overheat warning, or a check engine light. The temperature gauge (if your car has one) will climb, as well.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Abnormal Noise<\/h3>\n\n\n\n<p>In some cases, the water pump&rsquo;s bearings may start to fail, resulting in an audible whining or growling noise when the engine is running.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Heater Doesn&rsquo;t Work<\/h3>\n\n\n\n<p>Your car&rsquo;s heater requires hot engine coolant to operate properly. As such, a problem with the cooling system, such as a bad water pump, can lead to an inoperative heater.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"771\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/controls-for-car-heater-1024x771.jpeg\" alt=\"controls for car heater\" class=\"wp-image-21516\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/controls-for-car-heater-1024x771.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/controls-for-car-heater-300x226.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/controls-for-car-heater-768x578.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/controls-for-car-heater-1536x1156.jpeg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/controls-for-car-heater-scaled.jpeg 2048w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/controls-for-car-heater-150x113.jpeg 150w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Your car&rsquo;s heater requires hot engine coolant to operate properly.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Oil-Coolant Intermix (Chain-Driven Water Pumps Only)<\/h3>\n\n\n\n<p>On some vehicles, the water pump is driven off the timing chain inside the engine. When the pump or its gasket fails, the resulting leaks can cause coolant to mix with the oil inside of the engine. This is a common problem on the Ford 3.5L and 3.7L EcoBoost V6 engines.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Water Pump Diagnosis<\/h2>\n\n\n\n<p>There might be instances where the symptoms aren&rsquo;t as evident as they should be, forcing you to pop the hood and see the pump for yourself. If you have doubts about the overall condition of your water pump, here&rsquo;s what you can do.<\/p>\n\n\n\n<p>First things first&#19968;make sure your vehicle is parked and the parking brakes are applied. Once that&rsquo;s out of the way, remove the radiator cap and start the engine.<\/p>\n\n\n\n<p>Let the engine run for about 20 minutes to let it reach its operating temperature. The coolant should flow to the engine hoses at operating temperature.<\/p>\n\n\n\n<p>If that doesn&rsquo;t happen, the thermostat might be stuck closed or the radiator is clogged, and the water pump isn&rsquo;t working.<\/p>\n\n\n\n<p>If the water pump has been identified as the faulty component, replace it with a new one and check for coolant flow.<\/p>\n\n\n\n<p>To do this, force the new pump into the upper radiator hose. Then, check if coolant is rushing out of the pump after clearing the radiator from blockage.<\/p>\n\n\n\n<p>If coolant isn&rsquo;t coming out, try squeezing the upper radiator hose while someone steps on the accelerator pedal. Release the hose to check for coolant flow.<\/p>\n\n\n\n<p>When performing this task, it&rsquo;s also important to consider that the upper radiator hose could be the problem if the coolant fails to circulate.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Does a Water Pump Work in a Car?<\/h2>\n\n\n\n<p>As was mentioned, the water pump forces coolant through the cooling system. The water pump contains an <a href=\"https:\/\/www.carparts.com\/water-pump-impeller\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"impeller\">impeller<\/a>&mdash;a circular component with fan-like blades&mdash;that rotates on a shaft and bearings.<\/p>\n\n\n\n<p>Most water pumps are driven by the engine&rsquo;s drive belt, <a href=\"https:\/\/www.carparts.com\/blog\/timing-belt\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"timing belt\">timing belt<\/a>, or timing chain. When the engine is running, the belt or chain turns the water pump&rsquo;s pulley, causing the impeller to spin. The impeller draws coolant from the radiator, then pumps that coolant through the engine and heater core.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"784\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/automotive-cooling-system-1024x784.jpg\" alt=\"automotive cooling system\" class=\"wp-image-21515\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/automotive-cooling-system-1024x784.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/automotive-cooling-system-300x230.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/automotive-cooling-system-768x588.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/automotive-cooling-system-1536x1176.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/automotive-cooling-system-scaled.jpg 2048w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/automotive-cooling-system-150x115.jpg 150w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">The water pump contains an impeller&mdash;a circular component with fan-like blades&mdash;that rotates on a shaft and bearings.<\/figcaption><\/figure>\n\n\n\n<p>Although belt-driven water pumps are still common, a growing number of late-model cars now have electric water pumps. Electric pumps are more efficient since they put zero drag on the engine. Because the design doesn&rsquo;t require a running internal combustion engine, it also works well in hybrid and electric vehicles.<\/p>\n\n\n\n<p>It&rsquo;s also worth noting that some modern cars have multiple water pumps. Some systems use two or more electric pumps, while others use a combination of mechanical and electric pumps.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Can You Drive Your Car with a Bad Water Pump?<\/h2>\n\n\n\n<p>You might be wondering: Can you drive your car with a bad water pump? And the answer is&mdash; absolutely not. A failed water pump almost always leads to overheating, which, in turn, can cause extensive engine damage.<\/p>\n\n\n\n<p>Check out this video for tips on how to replace your water pump:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"How to replace the Water Pump 2009-2014 Ford F150 &#128167;\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Mt8Q3626LTQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\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&rsquo;s water pump is a fairly simple device&mdash;but it has an important job to do. As its name implies,&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/signs-of-a-bad-water-pump-is-it-time-to-replace-yours\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1643,"featured_media":21519,"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":[1188],"ppma_author":[2622],"class_list":{"0":"post-21506","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-cooling-system","8":"category-diy","9":"tag-water-pump-2","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>Signs of a Bad Water Pump: Is it Time to Replace Yours? - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"A bad water pump can be a hassle to deal with. Read on to find out the symptoms that point to a damaged water pump and whether or not you can still drive your vehicle with it.\" \/>\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\/signs-of-a-bad-water-pump-is-it-time-to-replace-yours\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Signs of a Bad Water Pump: Is it Time to Replace Yours? - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"A bad water pump can be a hassle to deal with. Read on to find out the symptoms that point to a damaged water pump and whether or not you can still drive your vehicle with it.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/signs-of-a-bad-water-pump-is-it-time-to-replace-yours\/\" \/>\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:published_time\" content=\"2021-01-20T02:03:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-05T03:32:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/01\/water-pump-white-bg-scaled.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"2048\" \/>\n\t<meta property=\"og:image:height\" content=\"1365\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Mia Bevacqua, ASE Certified Master Automobile Technician\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mia Bevacqua, ASE Certified Master Automobile Technician\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/signs-of-a-bad-water-pump-is-it-time-to-replace-yours\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/signs-of-a-bad-water-pump-is-it-time-to-replace-yours\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"1643\",\"name\":\"Mia Bevacqua\",\"jobTitle\":\"ASE Master Automobile Technician\",\"description\":\"Mia Bevacqua has over 14 years of experience in the auto industry and holds a bachelor\u2019s degree in Advanced Automotive Systems. 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