{"id":119942,"date":"2024-10-24T01:31:42","date_gmt":"2024-10-24T08:31:42","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=119942"},"modified":"2025-01-23T08:51:43","modified_gmt":"2025-01-23T16:51:43","slug":"why-is-my-car-losing-power-troubleshooting-engine-issues","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/why-is-my-car-losing-power-troubleshooting-engine-issues\/","title":{"rendered":"Why Is My Car Losing Power? Troubleshooting Engine Issues"},"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\"> 6<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column119942_d25201-6d > .kt-inside-inner-col,.kadence-column119942_d25201-6d > .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-column119942_d25201-6d > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column119942_d25201-6d > .kt-inside-inner-col{flex-direction:column;}.kadence-column119942_d25201-6d > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column119942_d25201-6d > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column119942_d25201-6d{position:relative;}@media all and (max-width: 1024px){.kadence-column119942_d25201-6d > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column119942_d25201-6d > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column119942_d25201-6d inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-359e99  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-f119c3\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading119942_9181f4-d0, .wp-block-kadence-advancedheading.kt-adv-heading119942_9181f4-d0[data-kb-block=\"kb-adv-heading119942_9181f4-d0\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading119942_9181f4-d0 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading119942_9181f4-d0[data-kb-block=\"kb-adv-heading119942_9181f4-d0\"] 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-heading119942_9181f4-d0 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading119942_9181f4-d0[data-kb-block=\"kb-adv-heading119942_9181f4-d0\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading119942_9181f4-d0 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading119942_9181f4-d0\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Many issues can cause your vehicle to lose power. Most of the time, these problems will show other symptoms alongside power loss.&nbsp;<\/li>\n\n\n\n<li>A vehicle that has power loss can also show symptoms such as misfires, engine knock, excessive vibrations, black smoke from the exhaust, and an illuminated check engine light.&nbsp;<\/li>\n\n\n\n<li>You should note these other symptoms because you can use this information to find the root cause behind your vehicle&rsquo;s power loss.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>There are clear signs that your engine is losing power. Your vehicle might <a href=\"https:\/\/www.carparts.com\/blog\/car-hesitates-when-accelerating-causes-and-faq\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"not be accelerating\">not be accelerating<\/a> as well as it did before. Perhaps your vehicle has felt slower when it&rsquo;s climbing hills or when it&rsquo;s carrying cargo. This isn&rsquo;t a subject we can cover in detail in a short blog article, but we&rsquo;ll touch on some possibilities.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Reasons Why Your Engine Is Losing Power<\/h2>\n\n\n\n<p>There are a lot of issues that can cause loss of engine power. A clogged fuel filter was a very common culprit in carburetor engines. Now, modern fuel systems don&rsquo;t have frequent <a href=\"https:\/\/www.carparts.com\/blog\/here-are-the-top-4-signs-of-a-bad-fuel-filter\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel filter issues\">fuel filter issues<\/a> anymore. That doesn&rsquo;t mean the fuel filter never gives trouble, and if you notice that you&rsquo;re losing power passing another car or accelerating hard in any venue, the filter is a good place to start if the filter isn&rsquo;t part of the pump. Even then, the filter can be the issue.<\/p>\n\n\n\n<p>But what causes a modern car to lose power? The most common problems include <a href=\"https:\/\/www.carparts.com\/fuel-pump\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel pumps\">fuel pumps<\/a>, <a href=\"https:\/\/www.carparts.com\/spark-plug\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"spark plugs\">spark plugs<\/a> and <a href=\"https:\/\/www.carparts.com\/spark-plug?refinements%5Bpart%5D=Spark_Plug&amp;refinements%5BquantitySold%5D=Kit&amp;itemperpage=20&amp;currentpage=1&amp;sort=best-match\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"coils\">coils<\/a>, skewed sensor readings (MAF or MAP), and exhaust clogging due to <a href=\"https:\/\/www.carparts.com\/blog\/bad-catalytic-converter-symptoms\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"catalytic converter failure\">catalytic converter failure<\/a>.<\/p>\n\n\n\n<p>If your car is losing power while driving, pay attention to see if you notice other symptoms.<\/p>\n\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Symptoms Alongside Power Loss<\/h2>\n\n\n\n<p>An engine that&rsquo;s losing power will also likely show one or more of the following symptoms:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Unresponsive Throttle Pedal<\/h3>\n\n\n\n<p>The most obvious sign that the engine is losing power is an unresponsive throttle pedal. Since most of today&rsquo;s vehicles have electronic throttle bodies, look for a wrench or throttle body light. If you see this, your PCM\/ECM might be limiting throttle action due to an issue with an AP sensor or the throttle body.<\/p>\n\n\n\n<p>You might notice this symptom when you&rsquo;re accelerating and the vehicle isn&rsquo;t responding appropriately. You might also notice this when you&rsquo;re driving uphill and your vehicle can&rsquo;t reach its usual speeds.<\/p>\n\n\n\n<p>Again, in a situation like this, the fuel filter is the first place you need to look into. A mechanic will drive the vehicle while experiencing the symptom with a fuel pressure gauge and a scan tool connected. If the fuel pressure fades as you accelerate, the filter and\/or pump are suspect, particularly if the O2 sensor goes lean and fuel trim goes positive while the symptom is present.<\/p>\n\n\n<style>.kadence-column119942_05c8d4-86 > .kt-inside-inner-col,.kadence-column119942_05c8d4-86 > .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-column119942_05c8d4-86 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column119942_05c8d4-86 > .kt-inside-inner-col{flex-direction:column;}.kadence-column119942_05c8d4-86 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column119942_05c8d4-86 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column119942_05c8d4-86{position:relative;}@media all and (max-width: 1024px){.kadence-column119942_05c8d4-86 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column119942_05c8d4-86 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column119942_05c8d4-86 kb-section-dir-vertical kb-section-sm-dir-vertical inner-column-1 pro-tip-widget\"><div class=\"kt-inside-inner-col\"><style>.kb-row-layout-id119942_5778ce-46 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id119942_5778ce-46 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id119942_5778ce-46 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-none, 0rem );row-gap:var(--global-kb-gap-md, 2rem);padding-top:20px;padding-right:32px;padding-bottom:20px;padding-left:16px;grid-template-columns:minmax(0, calc(10% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)))minmax(0, calc(90% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)));}.kb-row-layout-id119942_5778ce-46 > .kt-row-layout-overlay{opacity:0.00;}.kb-row-layout-id119942_5778ce-46 .kt-row-layout-bottom-sep{height:100px;}.kb-row-layout-id119942_5778ce-46 .kt-row-layout-bottom-sep svg{width:100%;}.kb-row-layout-id119942_5778ce-46 .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}.kb-row-layout-id119942_5778ce-46 .kt-row-layout-top-sep{height:100px;}.kb-row-layout-id119942_5778ce-46 .kt-row-layout-top-sep svg{width:100%;}.kb-row-layout-id119942_5778ce-46 .kt-row-layout-top-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){.kb-row-layout-id119942_5778ce-46 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 1024px){.kb-row-layout-id119942_5778ce-46 .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){.kb-row-layout-id119942_5778ce-46 .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){.kb-row-layout-id119942_5778ce-46 > .kt-row-column-wrap{padding-top:28px;padding-right:16px;padding-bottom:25px;padding-left:16px;grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}.kb-row-layout-id119942_5778ce-46 .kt-row-layout-bottom-sep{height:px;}.kb-row-layout-id119942_5778ce-46 .kt-row-layout-bottom-sep svg{width:%;}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id119942_5778ce-46 alignnone pro-tip-wrap wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-right-golden kt-tab-layout-right-golden kt-mobile-layout-right-golden kt-row-valign-top\">\n<style>.kadence-column119942_5cb3a1-cb > .kt-inside-inner-col{display:flex;}.kadence-column119942_5cb3a1-cb > .kt-inside-inner-col{min-height:45px;}.kadence-column119942_5cb3a1-cb > .kt-inside-inner-col,.kadence-column119942_5cb3a1-cb > .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-column119942_5cb3a1-cb > .kt-inside-inner-col{row-gap:0px;column-gap:0px;}.kadence-column119942_5cb3a1-cb > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}.kadence-column119942_5cb3a1-cb > .kt-inside-inner-col > *, .kadence-column119942_5cb3a1-cb > .kt-inside-inner-col > figure.wp-block-image, .kadence-column119942_5cb3a1-cb > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column119942_5cb3a1-cb > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kadence-column119942_5cb3a1-cb > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column119942_5cb3a1-cb{position:relative;}@media all and (max-width: 1024px){.kadence-column119942_5cb3a1-cb > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column119942_5cb3a1-cb > .kt-inside-inner-col > *, .kadence-column119942_5cb3a1-cb > .kt-inside-inner-col > figure.wp-block-image, .kadence-column119942_5cb3a1-cb > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column119942_5cb3a1-cb > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kadence-column119942_5cb3a1-cb > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column119942_5cb3a1-cb > .kt-inside-inner-col > *, .kadence-column119942_5cb3a1-cb > .kt-inside-inner-col > figure.wp-block-image, .kadence-column119942_5cb3a1-cb > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column119942_5cb3a1-cb > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column119942_5cb3a1-cb kb-section-dir-horizontal kb-section-md-dir-horizontal inner-column-1 pro-tip-item1\"><div class=\"kt-inside-inner-col\"><style>.kb-image119942_d165f3-29.kb-image-is-ratio-size, .kb-image119942_d165f3-29 .kb-image-is-ratio-size{max-width:45px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image119942_d165f3-29.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image119942_d165f3-29 .kb-image-is-ratio-size{align-self:unset;}.kb-image119942_d165f3-29 figure{max-width:45px;}.kb-image119942_d165f3-29 .image-is-svg, .kb-image119942_d165f3-29 .image-is-svg img{width:100%;}.kb-image119942_d165f3-29 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image119942_d165f3-29\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/f_auto,dpr_auto,q_auto,c_pad\/carparts\/blog\/widgets\/protip\/services-icon\" alt=\"\" class=\"kb-img\"><\/figure><\/div>\n<\/div><\/div>\n\n\n<style>.kadence-column119942_981155-40 > .kt-inside-inner-col,.kadence-column119942_981155-40 > .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-column119942_981155-40 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column119942_981155-40 > .kt-inside-inner-col{flex-direction:column;}.kadence-column119942_981155-40 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column119942_981155-40 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column119942_981155-40{position:relative;}@media all and (max-width: 1024px){.kadence-column119942_981155-40 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column119942_981155-40 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column119942_981155-40 inner-column-2 pro-tip-item2\"><div class=\"kt-inside-inner-col\">\n<div class=\"protip-desc\">\n\t<div class=\"help-tip\">\n\t\t<p><strong>Pro Tips<\/strong> are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.<\/p>\n\t<\/div>\n    <div class=\"help-caption\">\n        <p>\n            <strong>Pro Tip:<\/strong>\nSometimes a MAF sensor will become skewed so that it can&rsquo;t read but half of the incoming air and will cause the vehicle to top out at something like 50 miles per hour. If you disconnect the MAF and it runs normally, you&rsquo;ve hit pay dirt. This kind of failure is in-range and won&rsquo;t set a trouble code.\n        <\/p>\n    <\/div>\n<\/div>\n<\/div><\/div>\n\n<\/div><\/div><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Stretched Timing Chain or Timing Belt Jumped a Tooth<\/h3>\n\n\n\n<p>If the timing chain is stretched enough, valve timing will be retarded and the engine will have low vacuum and almost no power. If the engine has a MAP sensor in a situation like this, the PCM will think the engine is running under a heavy load and will over-fuel, causing a lot of black smoke. If a timing belt only loses a tooth or two, the engine can keep running but not have the same amount of power.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Engine Misfires<\/h3>\n\n\n\n<p>An <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=\"engine misfires\">engine misfires<\/a> when there&rsquo;s a problem with combustion in one or more of the cylinders.<\/p>\n\n\n\n<p>This can be spark plug or coil related. If it&rsquo;s a misfire &ldquo;bite&rdquo; under load, particularly at about 45 miles per hour, remove all the spark plugs and keep them in the order they were removed.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"305\" height=\"1024\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/10\/spark-plug-carbon-tracks-on-the-ceramic-305x1024.jpg\" alt=\"spark plug carbon tracks on the ceramic\" class=\"wp-image-124937\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/10\/spark-plug-carbon-tracks-on-the-ceramic-305x1024.jpg 305w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/10\/spark-plug-carbon-tracks-on-the-ceramic-89x300.jpg 89w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/10\/spark-plug-carbon-tracks-on-the-ceramic-458x1536.jpg 458w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/10\/spark-plug-carbon-tracks-on-the-ceramic-150x503.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/10\/spark-plug-carbon-tracks-on-the-ceramic.jpg 477w\" sizes=\"(max-width: 305px) 100vw, 305px\"><figcaption class=\"wp-element-caption\">If you see carbon tracks on the ceramic (see photo) where the plug wire boot goes, replace the plugs and the wires and put a bit of dielectric grease in each of the plug boots. There will be a matching track inside the plug wire boot, so make sure to replace the plug wire as well. | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<p>A &ldquo;bite&rdquo; misfire can happen without setting a code or triggering a <a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"check engine light\">check engine light<\/a>.<\/p>\n\n\n\n<p>A steady misfire will produce a DTC pointing to the guilty cylinder and will cause the check engine light to start flashing.<\/p>\n\n\n\n<p>Engine misfires are typically quite apparent because you can feel and hear them. A misfiring engine is going to create vibrations and popping or cough-like noises from the exhaust or it&rsquo;ll feel like you&rsquo;re firing a machine gun mounted on the fender.<\/p>\n\n\n<style>.kadence-column119942_6609d2-1b > .kt-inside-inner-col,.kadence-column119942_6609d2-1b > .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-column119942_6609d2-1b > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column119942_6609d2-1b > .kt-inside-inner-col{flex-direction:column;}.kadence-column119942_6609d2-1b > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column119942_6609d2-1b > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column119942_6609d2-1b{position:relative;}@media all and (max-width: 1024px){.kadence-column119942_6609d2-1b > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column119942_6609d2-1b > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column119942_6609d2-1b kb-section-dir-vertical kb-section-sm-dir-vertical inner-column-1 pro-tip-widget\"><div class=\"kt-inside-inner-col\"><style>.kb-row-layout-id119942_755096-f3 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id119942_755096-f3 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id119942_755096-f3 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-none, 0rem );row-gap:var(--global-kb-gap-md, 2rem);padding-top:20px;padding-right:32px;padding-bottom:20px;padding-left:16px;grid-template-columns:minmax(0, calc(10% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)))minmax(0, calc(90% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)));}.kb-row-layout-id119942_755096-f3 > .kt-row-layout-overlay{opacity:0.00;}.kb-row-layout-id119942_755096-f3 .kt-row-layout-bottom-sep{height:100px;}.kb-row-layout-id119942_755096-f3 .kt-row-layout-bottom-sep svg{width:100%;}.kb-row-layout-id119942_755096-f3 .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}.kb-row-layout-id119942_755096-f3 .kt-row-layout-top-sep{height:100px;}.kb-row-layout-id119942_755096-f3 .kt-row-layout-top-sep svg{width:100%;}.kb-row-layout-id119942_755096-f3 .kt-row-layout-top-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){.kb-row-layout-id119942_755096-f3 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 1024px){.kb-row-layout-id119942_755096-f3 .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){.kb-row-layout-id119942_755096-f3 .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){.kb-row-layout-id119942_755096-f3 > .kt-row-column-wrap{padding-top:28px;padding-right:16px;padding-bottom:25px;padding-left:16px;grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}.kb-row-layout-id119942_755096-f3 .kt-row-layout-bottom-sep{height:px;}.kb-row-layout-id119942_755096-f3 .kt-row-layout-bottom-sep svg{width:%;}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id119942_755096-f3 alignnone pro-tip-wrap wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-right-golden kt-tab-layout-right-golden kt-mobile-layout-right-golden kt-row-valign-top\">\n<style>.kadence-column119942_068d43-10 > .kt-inside-inner-col{display:flex;}.kadence-column119942_068d43-10 > .kt-inside-inner-col{min-height:45px;}.kadence-column119942_068d43-10 > .kt-inside-inner-col,.kadence-column119942_068d43-10 > .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-column119942_068d43-10 > .kt-inside-inner-col{row-gap:0px;column-gap:0px;}.kadence-column119942_068d43-10 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}.kadence-column119942_068d43-10 > .kt-inside-inner-col > *, .kadence-column119942_068d43-10 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column119942_068d43-10 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column119942_068d43-10 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kadence-column119942_068d43-10 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column119942_068d43-10{position:relative;}@media all and (max-width: 1024px){.kadence-column119942_068d43-10 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column119942_068d43-10 > .kt-inside-inner-col > *, .kadence-column119942_068d43-10 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column119942_068d43-10 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column119942_068d43-10 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kadence-column119942_068d43-10 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column119942_068d43-10 > .kt-inside-inner-col > *, .kadence-column119942_068d43-10 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column119942_068d43-10 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column119942_068d43-10 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column119942_068d43-10 kb-section-dir-horizontal kb-section-md-dir-horizontal inner-column-1 pro-tip-item1\"><div class=\"kt-inside-inner-col\"><style>.kb-image119942_6a7e1a-39.kb-image-is-ratio-size, .kb-image119942_6a7e1a-39 .kb-image-is-ratio-size{max-width:45px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image119942_6a7e1a-39.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image119942_6a7e1a-39 .kb-image-is-ratio-size{align-self:unset;}.kb-image119942_6a7e1a-39 figure{max-width:45px;}.kb-image119942_6a7e1a-39 .image-is-svg, .kb-image119942_6a7e1a-39 .image-is-svg img{width:100%;}.kb-image119942_6a7e1a-39 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image119942_6a7e1a-39\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/f_auto,dpr_auto,q_auto,c_pad\/carparts\/blog\/widgets\/protip\/services-icon\" alt=\"\" class=\"kb-img\"><\/figure><\/div>\n<\/div><\/div>\n\n\n<style>.kadence-column119942_12e049-fa > .kt-inside-inner-col,.kadence-column119942_12e049-fa > .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-column119942_12e049-fa > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column119942_12e049-fa > .kt-inside-inner-col{flex-direction:column;}.kadence-column119942_12e049-fa > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column119942_12e049-fa > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column119942_12e049-fa{position:relative;}@media all and (max-width: 1024px){.kadence-column119942_12e049-fa > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column119942_12e049-fa > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column119942_12e049-fa inner-column-2 pro-tip-item2\"><div class=\"kt-inside-inner-col\">\n<div class=\"protip-desc\">\n\t<div class=\"help-tip\">\n\t\t<p><strong>Pro Tips<\/strong> are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.<\/p>\n\t<\/div>\n    <div class=\"help-caption\">\n        <p>\n            <strong>Pro Tip:<\/strong>\nIf one cylinder starts misfiring on a four cylinder, it&rsquo;ll be a lot more pronounced than it is on a V6 or a V8. If it&rsquo;s an intermittent misfire, it&rsquo;s always ignition related. If it&rsquo;s a steady misfire under load, it could still be ignition-related but could be something else.\n        <\/p>\n    <\/div>\n<\/div>\n<\/div><\/div>\n\n<\/div><\/div><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Detonation or Spark Knock<\/h3>\n\n\n\n<p>Detonation creates a knock because the knocking cylinder is running too hot or because the compression is too high due to heavy carbon on the piston crown and\/or cylinder head. Spark knock happens due to induction crossfire between plug wires that are routed next to each other and are also adjacent in the firing order or because the ignition timing is too advanced on engines that require timing adjustments.<\/p>\n\n\n\n<p>These knocks occur when the air-fuel mixture in the combustion chamber ignites prematurely. This creates downward pressure on the piston during the compression stroke, which causes your engine to lose some of its rotational energy.<\/p>\n\n\n<style>.kadence-column119942_83e3ea-cf > .kt-inside-inner-col,.kadence-column119942_83e3ea-cf > .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-column119942_83e3ea-cf > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column119942_83e3ea-cf > .kt-inside-inner-col{flex-direction:column;}.kadence-column119942_83e3ea-cf > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column119942_83e3ea-cf > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column119942_83e3ea-cf{position:relative;}@media all and (max-width: 1024px){.kadence-column119942_83e3ea-cf > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column119942_83e3ea-cf > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column119942_83e3ea-cf kb-section-dir-vertical kb-section-sm-dir-vertical inner-column-1 pro-tip-widget\"><div class=\"kt-inside-inner-col\"><style>.kb-row-layout-id119942_5e72d4-98 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id119942_5e72d4-98 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id119942_5e72d4-98 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-none, 0rem );row-gap:var(--global-kb-gap-md, 2rem);padding-top:20px;padding-right:32px;padding-bottom:20px;padding-left:16px;grid-template-columns:minmax(0, calc(10% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)))minmax(0, calc(90% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)));}.kb-row-layout-id119942_5e72d4-98 > .kt-row-layout-overlay{opacity:0.00;}.kb-row-layout-id119942_5e72d4-98 .kt-row-layout-bottom-sep{height:100px;}.kb-row-layout-id119942_5e72d4-98 .kt-row-layout-bottom-sep svg{width:100%;}.kb-row-layout-id119942_5e72d4-98 .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}.kb-row-layout-id119942_5e72d4-98 .kt-row-layout-top-sep{height:100px;}.kb-row-layout-id119942_5e72d4-98 .kt-row-layout-top-sep svg{width:100%;}.kb-row-layout-id119942_5e72d4-98 .kt-row-layout-top-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){.kb-row-layout-id119942_5e72d4-98 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 1024px){.kb-row-layout-id119942_5e72d4-98 .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){.kb-row-layout-id119942_5e72d4-98 .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){.kb-row-layout-id119942_5e72d4-98 > .kt-row-column-wrap{padding-top:28px;padding-right:16px;padding-bottom:25px;padding-left:16px;grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}.kb-row-layout-id119942_5e72d4-98 .kt-row-layout-bottom-sep{height:px;}.kb-row-layout-id119942_5e72d4-98 .kt-row-layout-bottom-sep svg{width:%;}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id119942_5e72d4-98 alignnone pro-tip-wrap wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-right-golden kt-tab-layout-right-golden kt-mobile-layout-right-golden kt-row-valign-top\">\n<style>.kadence-column119942_624954-89 > .kt-inside-inner-col{display:flex;}.kadence-column119942_624954-89 > .kt-inside-inner-col{min-height:45px;}.kadence-column119942_624954-89 > .kt-inside-inner-col,.kadence-column119942_624954-89 > .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-column119942_624954-89 > .kt-inside-inner-col{row-gap:0px;column-gap:0px;}.kadence-column119942_624954-89 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}.kadence-column119942_624954-89 > .kt-inside-inner-col > *, .kadence-column119942_624954-89 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column119942_624954-89 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column119942_624954-89 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kadence-column119942_624954-89 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column119942_624954-89{position:relative;}@media all and (max-width: 1024px){.kadence-column119942_624954-89 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column119942_624954-89 > .kt-inside-inner-col > *, .kadence-column119942_624954-89 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column119942_624954-89 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column119942_624954-89 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kadence-column119942_624954-89 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column119942_624954-89 > .kt-inside-inner-col > *, .kadence-column119942_624954-89 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column119942_624954-89 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column119942_624954-89 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column119942_624954-89 kb-section-dir-horizontal kb-section-md-dir-horizontal inner-column-1 pro-tip-item1\"><div class=\"kt-inside-inner-col\"><style>.kb-image119942_623cf1-83.kb-image-is-ratio-size, .kb-image119942_623cf1-83 .kb-image-is-ratio-size{max-width:45px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image119942_623cf1-83.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image119942_623cf1-83 .kb-image-is-ratio-size{align-self:unset;}.kb-image119942_623cf1-83 figure{max-width:45px;}.kb-image119942_623cf1-83 .image-is-svg, .kb-image119942_623cf1-83 .image-is-svg img{width:100%;}.kb-image119942_623cf1-83 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image119942_623cf1-83\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/f_auto,dpr_auto,q_auto,c_pad\/carparts\/blog\/widgets\/protip\/services-icon\" alt=\"\" class=\"kb-img\"><\/figure><\/div>\n<\/div><\/div>\n\n\n<style>.kadence-column119942_a4d507-39 > .kt-inside-inner-col,.kadence-column119942_a4d507-39 > .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-column119942_a4d507-39 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column119942_a4d507-39 > .kt-inside-inner-col{flex-direction:column;}.kadence-column119942_a4d507-39 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column119942_a4d507-39 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column119942_a4d507-39{position:relative;}@media all and (max-width: 1024px){.kadence-column119942_a4d507-39 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column119942_a4d507-39 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column119942_a4d507-39 inner-column-2 pro-tip-item2\"><div class=\"kt-inside-inner-col\">\n<div class=\"protip-desc\">\n\t<div class=\"help-tip\">\n\t\t<p><strong>Pro Tips<\/strong> are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.<\/p>\n\t<\/div>\n    <div class=\"help-caption\">\n        <p>\n            <strong>Pro Tip:<\/strong>\nIf you have a knock bad enough to cause a noticeable power loss, get it seen about right away. It can be seriously damaging.\n        <\/p>\n    <\/div>\n<\/div>\n<\/div><\/div>\n\n<\/div><\/div><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Black Exhaust Smoke<\/h3>\n\n\n\n<p>When your vehicle belches black smoke, it means your engine is running rich, which means there&rsquo;s too much fuel in the air-fuel mixture. This can be due to a faulty fuel pressure regulator (either in-tank or on the fuel rail, depending on the platform). A black smoke-belching vehicle can also have issues like a stuck open fuel injector.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Illuminated Check Engine Light<\/h3>\n\n\n\n<p>Your vehicle&rsquo;s onboard diagnostic system can detect many of the previously mentioned issues. Once detected, your diagnostic system is going to activate your vehicle&rsquo;s check engine light located on the gauge cluster. But there&rsquo;s more to finding a problem than just pulling <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"trouble codes\">trouble codes<\/a>, so don&rsquo;t think the scan tool has all the answers. There&rsquo;s a lot more to it than that.<\/p>\n\n\n\n<p>If your vehicle is losing power, you must recognize its associated symptoms so that you can diagnose and address the underlying issues. Promptly address these symptoms so that you can keep your vehicle running properly and avoid further engine damage.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Buy a Replacement Fuel System Parts<\/h2>\n\n\n\n<p>If your vehicle&rsquo;s losing power from engine issues, there&rsquo;s a very real possibility that it&rsquo;s because there&rsquo;s something wrong with the fuel system. Once you bring your vehicle to an auto repair shop, they can tell you exactly what parts you need to replace. Thankfully, when it comes to fuel system parts, CarParts.com has you covered.<\/p>\n\n\n\n<p>The <a href=\"http:\/\/carparts.com\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"CarParts.com\">CarParts.com<\/a> catalog contains hundreds of quality aftermarket parts at different price points to suit your budget. With our wide selection of trusted brands, you should be able to find exactly what you need to get your vehicle&rsquo;s fuel system back up and running. Browsing the available stock and placing your order takes just a few quick clicks. We&rsquo;ll even deliver your new parts straight to your door in as fast as two business days if you order from the continental US before 12 p.m. ET.<\/p>\n\n\n\n<p>Get your engine back to its peak running condition today. Order a new <a href=\"https:\/\/www.carparts.com\/fuel-pump\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel pump\">fuel pump<\/a> or other fuel system parts at CarParts.com now.<\/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\"> 6<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>There are clear signs that your engine is losing power. Your vehicle might not be accelerating as well as it&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/why-is-my-car-losing-power-troubleshooting-engine-issues\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":120382,"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":[],"ppma_author":[2607,2985],"class_list":{"0":"post-119942","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-diy","8":"category-engine","9":"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>Why Is My Car Losing Power? 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