{"id":94251,"date":"2023-10-07T04:45:23","date_gmt":"2023-10-07T11:45:23","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=94251"},"modified":"2023-11-06T15:51:51","modified_gmt":"2023-11-06T23:51:51","slug":"what-does-a-fuel-pump-driver-module-do","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/what-does-a-fuel-pump-driver-module-do\/","title":{"rendered":"What Does a Fuel Pump Driver Module Do?"},"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_09c426-e7 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_09c426-e7 > .kt-inside-inner-col,.kadence-column_09c426-e7 > .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_09c426-e7 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_09c426-e7 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_09c426-e7 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_09c426-e7 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_09c426-e7{position:relative;}@media all and (max-width: 1024px){.kadence-column_09c426-e7 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_09c426-e7 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_09c426-e7 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-09b00e  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-7b278c\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_8d087c-d9, .wp-block-kadence-advancedheading.kt-adv-heading_8d087c-d9[data-kb-block=\"kb-adv-heading_8d087c-d9\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_8d087c-d9 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_8d087c-d9[data-kb-block=\"kb-adv-heading_8d087c-d9\"] 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_8d087c-d9 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_8d087c-d9[data-kb-block=\"kb-adv-heading_8d087c-d9\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_8d087c-d9 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_8d087c-d9\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>The FPDM controls the voltage supply to the electric fuel pump to ensure it gets the right amount of power.<\/li><li>Its location varies depending on the vehicle, but it&rsquo;s usually at the back of the car.<\/li><li>Some symptoms of a faulty FPDM include misfires, damaged fuel filters, and engine surges.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>If you&rsquo;re starting to notice engine-related issues, you might want to have your fuel pump driver module (FPDM) checked. It&rsquo;s a critical part of the electronic returnless fuel supply system.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Is the Fuel Pump Driver Module?<\/h2>\n\n\n\n<p><strong>The FPDM or fuel solenoid driver (FSD) controls the voltage supply to the electric fuel pump to ensure the fuel pump gets the right amount of power at a given time.<\/strong><\/p>\n\n\n\n<p>Vehicles equipped with an electronic returnless fuel supply system usually have an FPDM assembly instead of a fuel pressure regulator.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">More on Electronic Returnless Fuel Supply Systems<\/h3>\n\n\n\n<p>To understand the role of an FPDM, let&rsquo;s look at how an electronic returnless fuel supply system operates.<\/p>\n\n\n\n<p>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) analyzes how much fuel pressure is needed based on the data it collects from various sensors (fuel rail pressure sensor and fuel temperature sensor). The FPDM then controls the <a href=\"https:\/\/www.carparts.com\/fuel-pump\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel pump\">fuel pump<\/a> based on the PCM&rsquo;s input.<\/p>\n\n\n\n<p>When you start the engine, the voltage goes to the pump through the FPDM or a separate fuel pump circuit. The module controls the fuel pump motor&rsquo;s ground circuit on a pulse-width modulated duty cycle.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What&rsquo;s the Difference Between a Fuel Pressure Regulator and an FPDM?<\/h3>\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\/fuel-pump-driver-module-and-fuel-pressure-regulator-1024x682.jpg\" alt=\"fuel pump driver module and fuel pressure regulator\" class=\"wp-image-94254\" width=\"1024\" height=\"682\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/fuel-pump-driver-module-and-fuel-pressure-regulator-1024x682.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/fuel-pump-driver-module-and-fuel-pressure-regulator-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/fuel-pump-driver-module-and-fuel-pressure-regulator-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/fuel-pump-driver-module-and-fuel-pressure-regulator-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/fuel-pump-driver-module-and-fuel-pressure-regulator-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/fuel-pump-driver-module-and-fuel-pressure-regulator-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/fuel-pump-driver-module-and-fuel-pressure-regulator-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/fuel-pump-driver-module-and-fuel-pressure-regulator.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>If you own an older vehicle, there&rsquo;s a high chance that it&rsquo;s equipped with a fuel pressure regulator instead of an FPDM.<\/figcaption><\/figure>\n\n\n\n<p>If you own an older vehicle, there&rsquo;s a high chance that it&rsquo;s equipped with a <a href=\"https:\/\/www.carparts.com\/fuel-pressure-regulator\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel pressure regulator\">fuel pressure regulator<\/a> instead of an FPDM. What&rsquo;s the difference between these two?<\/p>\n\n\n\n<p>In older cars, the fuel system maintains a constant high pressure. The fuel pressure regulator is a valve that opens to varying degrees to allow excess fuel to return to the <a href=\"https:\/\/www.carparts.com\/fuel-tank\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel tank\">fuel tank<\/a>. This process goes on, and the fuel pressure regulator adjusts its valve position every time to adjust fuel pressure.<\/p>\n\n\n\n<p>Meanwhile, the FPDM offers a more advanced method of managing fuel pressure. It uses voltage modulation rather than providing a constant 12-volts supply to the pump. By doing this, the FPDM can accurately adjust the amount of fuel being delivered. This enables the pump to provide varying levels of fuel pressure as needed, so there&rsquo;s no need for a traditional fuel pressure regulator.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>The FPDM offers a more advanced method of managing fuel pressure. It uses voltage modulation rather than providing a constant 12-volts supply to the pump.<\/p><cite><em>&ndash;<\/em><a href=\"https:\/\/www.carparts.com\/blog\/author\/anthonyharlin\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Anthony Harlin, ASE Certified Master Automobile Technician\">Anthony Harlin, ASE Certified Master Automobile Technician<\/a><\/cite><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Where Is the Fuel Pump Driver Module Located?<\/h2>\n\n\n\n<p>The location of the FPDM varies depending on the vehicle, but it&rsquo;s usually at the <a href=\"https:\/\/www.carparts.com\/blog\/where-is-the-fuel-pump-driver-module-located\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"back of the car\">back of the car<\/a> (on its underside or rear end). You can check out your user&rsquo;s manual to know where the FPDM is on your vehicle.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Symptoms of a Faulty Fuel Pump Driver Module<\/h2>\n\n\n\n<p>FPDMs usually fail due to corrosion, overheating, or road vibration. Here are some of the most common symptoms of a malfunctioning FPDM:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Engine Misfires and Stalling<\/h3>\n\n\n\n<p>When the driver module malfunctions, the pump won&rsquo;t produce the right amount of pressure, causing the engine to run low or <a href=\"https:\/\/www.carparts.com\/blog\/what-is-a-misfire-plus-common-obd-codes-linked-to-a-misfiring-engine\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"misfire\">misfire<\/a>. Your engine can also stall because of it.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Damaged Fuel Filter<\/h3>\n\n\n\n<p>A malfunctioning module can result in an unstable voltage delivery to the pump. If it pushes too much fuel, it can strain the <a href=\"https:\/\/www.carparts.com\/fuel-filter\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"filter\">filter<\/a> and affect its lifespan and performance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Engine Surges<\/h3>\n\n\n\n<p>If your engine surges or hesitates while accelerating, it can be a sign that the module is malfunctioning. That&rsquo;s because it might not send the right amount of fuel for engine operation.<\/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\">Loud Whining Noise<\/h3>\n\n\n\n<p>While it&rsquo;s normal to hear a faint hum coming from the fuel tank, a loud whining noise is concerning. It could mean that something is wrong with the fuel pump. One of the issues that can cause issues for the pump is a faulty fuel pump driver module.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Rough Idling<\/h3>\n\n\n\n<p>If you&rsquo;re having a hard time maintaining a smooth idle, it could mean that your FPDM is starting to malfunction. Remember that this module controls the fuel pump and supports all its functions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Bad Gas Mileage<\/h3>\n\n\n\n<p>The pump will not function as it should once the FPDM gets faulty, so the engine might consume more fuel than usual. If you&rsquo;re starting to notice that you&rsquo;re taking more trips to the gas station, it&rsquo;s time to have your fuel system inspected.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Poor Engine Performance<\/h3>\n\n\n\n<p>Your vehicle can&rsquo;t perform its best if it doesn&rsquo;t receive the right amount of fuel. If your car doesn&rsquo;t respond quickly or efficiently when you try to accelerate, it could be a sign that your FPDM is not functioning as it should.<\/p>\n\n\n\n<p>Most of these symptoms can point to other problems. To confirm whether they&rsquo;re due to a bad FPDM, it&rsquo;s best to have a mechanic diagnose the issue.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Can You Drive With a Bad Fuel Pump Driver Module?<\/h2>\n\n\n\n<p>Driving with a faulty FPDM isn&rsquo;t safe because it can cause a lot of issues that can make driving difficult. If you suspect that your FPDM is faulty, contact a licensed mechanic immediately. Ignoring this issue can lead to more complex problems that are harder to repair.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Much Does an FPDM Replacement Cost?<\/h2>\n\n\n\n<p>A <a href=\"https:\/\/www.carparts.com\/fuel-pump-driver-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel pump driver module\">fuel pump driver module<\/a> can cost anywhere between $100 and $500. The exact cost of the part can vary depending on your vehicle and the module&rsquo;s brand. Labor costs will also differ based on your ride&rsquo;s year, make, and model plus the rates in your area.<\/p>\n\n\n\n<p>Your FPDM is crucial to your vehicle&rsquo;s operation, so watch out for fuel pump driver module symptoms. Don&rsquo;t think twice about replacing it if it&rsquo;s faulty. Take note that your replacement&nbsp; FPDM has to be programmed to your vehicle. So keep that in mind when replacing the module.<\/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>If you&rsquo;re starting to notice engine-related issues, you might want to have your fuel pump driver module (FPDM) checked. It&rsquo;s&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/what-does-a-fuel-pump-driver-module-do\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":94252,"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":[52,3758],"tags":[1197,1066],"ppma_author":[2607,3742],"class_list":{"0":"post-94251","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-diy","8":"category-electrical-system","9":"tag-fuel-pump-2","10":"tag-fuel-pump-driver-module","11":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Does a Fuel Pump Driver Module Do? - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out what a fuel pump driver module does and the common symptoms that can indicate it\u2019s time to have it serviced.\" \/>\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\/what-does-a-fuel-pump-driver-module-do\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Does a Fuel Pump Driver Module Do? - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out what a fuel pump driver module does and the common symptoms that can indicate it\u2019s time to have it serviced.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/what-does-a-fuel-pump-driver-module-do\/\" \/>\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=\"2023-10-07T11:45:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-11-06T23:51:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/10\/fuel-pump-driver-module-at-underside.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1333\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\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=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/what-does-a-fuel-pump-driver-module-do\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/what-does-a-fuel-pump-driver-module-do\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. 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