{"id":117616,"date":"2024-09-02T20:42:03","date_gmt":"2024-09-03T03:42:03","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=117616"},"modified":"2025-01-16T22:10:27","modified_gmt":"2025-01-17T06:10:27","slug":"does-your-diesel-engine-have-power-loss-when-its-under-load","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/does-your-diesel-engine-have-power-loss-when-its-under-load\/","title":{"rendered":"Does Your Diesel Engine Have Power Loss When It\u2019s Under Load?"},"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-column117616_be84c4-9f > .kt-inside-inner-col,.kadence-column117616_be84c4-9f > .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-column117616_be84c4-9f > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column117616_be84c4-9f > .kt-inside-inner-col{flex-direction:column;}.kadence-column117616_be84c4-9f > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column117616_be84c4-9f > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column117616_be84c4-9f{position:relative;}@media all and (max-width: 1024px){.kadence-column117616_be84c4-9f > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column117616_be84c4-9f > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column117616_be84c4-9f inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-5c4b30  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-eacc3d\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading117616_f6de9f-58, .wp-block-kadence-advancedheading.kt-adv-heading117616_f6de9f-58[data-kb-block=\"kb-adv-heading117616_f6de9f-58\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading117616_f6de9f-58 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading117616_f6de9f-58[data-kb-block=\"kb-adv-heading117616_f6de9f-58\"] 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-heading117616_f6de9f-58 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading117616_f6de9f-58[data-kb-block=\"kb-adv-heading117616_f6de9f-58\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading117616_f6de9f-58 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading117616_f6de9f-58\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Blockages in your vehicle&rsquo;s exhaust system like a clogged catalytic converter or diesel particulate filter can cause increased backpressure, which will reduce engine power.<\/li>\n\n\n\n<li>Fuel flow is important for your engine to maintain engine power. Problems with the fuel filter and diesel injection pump can cause insufficient fuel flow and reduced engine power.<\/li>\n\n\n\n<li>Restrictions in air intake because of a leaking air intake system or dirty air filter can cause reduced engine power because the engine needs ample airflow for combustion.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Diesel engines produce a lot of torque. This is why trucks and other cargo vehicles have them. They can perform well even when under heavy loads, such as when climbing a hill or towing heavy cargo. But over time, there&rsquo;s a chance that your diesel truck might be losing power while driving. If a diesel engine lacks power, then this can be a sign that something&rsquo;s wrong.<\/p>\n\n\n\n<p>What causes power loss in diesel engines? There are a lot of problems that can occur that can interfere with your engine&rsquo;s ability to produce power.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Reasons Why Your Diesel Engine Loses Power<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Clogged Catalytic Converter<\/h3>\n\n\n\n<p>Proper exhaust flow is important. Any <a href=\"https:\/\/www.carparts.com\/blog\/how-to-tell-if-the-catalytic-converter-is-clogged\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"backpressure created along the exhaust system\">backpressure created along the exhaust system<\/a> will create resistance during the cylinders&rsquo; exhaust stroke.<\/p>\n\n\n<style>.kadence-column117616_f25b4d-2d > .kt-inside-inner-col,.kadence-column117616_f25b4d-2d > .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-column117616_f25b4d-2d > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column117616_f25b4d-2d > .kt-inside-inner-col{flex-direction:column;}.kadence-column117616_f25b4d-2d > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column117616_f25b4d-2d > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column117616_f25b4d-2d{position:relative;}@media all and (max-width: 1024px){.kadence-column117616_f25b4d-2d > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column117616_f25b4d-2d > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column117616_f25b4d-2d 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-id117616_015023-58 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id117616_015023-58 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id117616_015023-58 > .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-id117616_015023-58 > .kt-row-layout-overlay{opacity:0.00;}.kb-row-layout-id117616_015023-58 .kt-row-layout-bottom-sep{height:100px;}.kb-row-layout-id117616_015023-58 .kt-row-layout-bottom-sep svg{width:100%;}.kb-row-layout-id117616_015023-58 .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}.kb-row-layout-id117616_015023-58 .kt-row-layout-top-sep{height:100px;}.kb-row-layout-id117616_015023-58 .kt-row-layout-top-sep svg{width:100%;}.kb-row-layout-id117616_015023-58 .kt-row-layout-top-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){.kb-row-layout-id117616_015023-58 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 1024px){.kb-row-layout-id117616_015023-58 .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){.kb-row-layout-id117616_015023-58 .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){.kb-row-layout-id117616_015023-58 > .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-id117616_015023-58 .kt-row-layout-bottom-sep{height:px;}.kb-row-layout-id117616_015023-58 .kt-row-layout-bottom-sep svg{width:%;}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id117616_015023-58 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-column117616_aa9402-e7 > .kt-inside-inner-col{display:flex;}.kadence-column117616_aa9402-e7 > .kt-inside-inner-col{min-height:45px;}.kadence-column117616_aa9402-e7 > .kt-inside-inner-col,.kadence-column117616_aa9402-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-column117616_aa9402-e7 > .kt-inside-inner-col{row-gap:0px;column-gap:0px;}.kadence-column117616_aa9402-e7 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}.kadence-column117616_aa9402-e7 > .kt-inside-inner-col > *, .kadence-column117616_aa9402-e7 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column117616_aa9402-e7 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column117616_aa9402-e7 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kadence-column117616_aa9402-e7 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column117616_aa9402-e7{position:relative;}@media all and (max-width: 1024px){.kadence-column117616_aa9402-e7 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column117616_aa9402-e7 > .kt-inside-inner-col > *, .kadence-column117616_aa9402-e7 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column117616_aa9402-e7 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column117616_aa9402-e7 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kadence-column117616_aa9402-e7 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column117616_aa9402-e7 > .kt-inside-inner-col > *, .kadence-column117616_aa9402-e7 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column117616_aa9402-e7 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column117616_aa9402-e7 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column117616_aa9402-e7 kb-section-dir-horizontal kb-section-md-dir-horizontal inner-column-1 pro-tip-item1\"><div class=\"kt-inside-inner-col\"><style>.kb-image117616_a9ec81-c8.kb-image-is-ratio-size, .kb-image117616_a9ec81-c8 .kb-image-is-ratio-size{max-width:45px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image117616_a9ec81-c8.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image117616_a9ec81-c8 .kb-image-is-ratio-size{align-self:unset;}.kb-image117616_a9ec81-c8 figure{max-width:45px;}.kb-image117616_a9ec81-c8 .image-is-svg, .kb-image117616_a9ec81-c8 .image-is-svg img{width:100%;}.kb-image117616_a9ec81-c8 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image117616_a9ec81-c8\"><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-column117616_e78392-2c > .kt-inside-inner-col,.kadence-column117616_e78392-2c > .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-column117616_e78392-2c > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column117616_e78392-2c > .kt-inside-inner-col{flex-direction:column;}.kadence-column117616_e78392-2c > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column117616_e78392-2c > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column117616_e78392-2c{position:relative;}@media all and (max-width: 1024px){.kadence-column117616_e78392-2c > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column117616_e78392-2c > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column117616_e78392-2c 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>\n            Older diesels didn&rsquo;t have catalytic converters, newer diesels do.\n        <\/p>\n    <\/div>\n<\/div>\n<\/div><\/div>\n\n<\/div><\/div><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Malfunctioning Exhaust Backpressure Valve (94-2003 7.3L Power Stroke)<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/09\/exhaust-backpressure-valve-1024x1024.jpg\" alt=\"image of an exhaust backpressure valve\" class=\"wp-image-119757\" style=\"width:1450px;height:auto\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/09\/exhaust-backpressure-valve-1024x1024.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/09\/exhaust-backpressure-valve-300x300.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/09\/exhaust-backpressure-valve-768x768.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/09\/exhaust-backpressure-valve-75x75.jpg 75w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/09\/exhaust-backpressure-valve-600x600.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/09\/exhaust-backpressure-valve-96x96.jpg 96w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/09\/exhaust-backpressure-valve-150x150.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/09\/exhaust-backpressure-valve.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">An exhaust backpressure valve from a 94-2003 Power Stroke | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<p>From 1994 to 2003, the Ford 7.3L Power Stroke turbocharger included an exhaust backpressure system to provide more heat to the coolant for better cab heating and to initiate higher defroster temperatures sooner in a drive cycle. The exhaust backpressure system operates during low-load, low-rpm operating conditions.<\/p>\n\n\n\n<p>At high-load, high-rpm conditions, the backpressure system is disabled to allow better exhaust flow from the engine. The backpressure device is a butterfly-type valve located at the turbocharger outlet that is controlled by a solenoid and an oil pressure driven piston. If the EBP butterfly valve is stuck closed, it will have the same effect as a clogged exhaust.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Clogged Diesel Particulate Filter<\/h3>\n\n\n\n<p>The diesel particulate filter (DPF) traps harmful particulates and soot before it&rsquo;s released into the atmosphere. This part can sometimes get clogged, which will increase exhaust system backpressure and require the engine to waste energy expelling exhaust gases, causing a reduction in power.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Clogged Fuel Filter<\/h3>\n\n\n\n<p>Dirty fuel can have debris that can get stuck on the fuel filter, which will decrease fuel flow and pressure. When the diesel <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 gets clogged\">fuel filter gets clogged<\/a>, it&rsquo;ll start depriving the engine of fuel, especially when the engine is under load. This can be a reason why a diesel engine loses power when going uphill.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Insufficient Fuel Pressure<\/h3>\n\n\n\n<p>A malfunctioning fuel pump or diesel injection pump is another reason why your engine could be losing power. The <a href=\"https:\/\/www.carparts.com\/fuel-pump\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel pump\">fuel pump<\/a> sends fuel from the fuel tank to the engine. Meanwhile, the diesel injection pump receives fuel from the fuel lines and pushes diesel into each cylinder.<\/p>\n\n\n\n<p>If these pumps are producing insufficient pressure, your engine will be deprived of fuel, resulting in reduced power.<\/p>\n\n\n\n\n\n\n<h3 class=\"wp-block-heading\">Dirty Air Filter<\/h3>\n\n\n\n<p>The air filter prevents contaminants like dust and bugs from entering the engine&rsquo;s intake, which can damage the engine. If the <a href=\"https:\/\/www.carparts.com\/blog\/heres-what-happens-when-your-cars-engine-air-filter-is-dirty\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"air filter hasn&rsquo;t been cleaned or replaced\">air filter hasn&rsquo;t been cleaned or replaced<\/a> in a while, the contaminants can restrict airflow and prevent the engine from generating enough power.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Leaking Intake System<\/h3>\n\n\n\n<p>Just like a dirty air filter, a leak somewhere in the vehicle&rsquo;s intake system, such as on the intake manifold, turbocharger, or charge air cooler is going to reduce the amount of air entering your engine. A leak in the intake system, particularly after the turbocharger, is going to reduce your engine&rsquo;s power output since air is necessary for combustion.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Faulty Sensors<\/h3>\n\n\n\n<p>Sensors such as the <a href=\"https:\/\/www.carparts.com\/mass-air-flow-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"mass air flow (MAF) sensor\">mass air flow (MAF) sensor<\/a> and <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oxygen sensor\">oxygen sensor<\/a> are important since they send information to the engine, which helps it optimize engine functions. When these <a href=\"https:\/\/www.carparts.com\/blog\/symptoms-of-failing-mass-air-flow-sensor\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"sensors malfunction\">sensors malfunction<\/a>, the powertrain control module (PCM) can mismanage ignition timing, causing issues such as insufficient power under load.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Faulty EGR Valve<\/h3>\n\n\n\n<p>The EGR valve recirculates exhaust gas back to the engine to lower engine temperature and reduce emissions. If an <a href=\"https:\/\/www.carparts.com\/blog\/bad-egr-valve-common-symptoms-and-testing-procedure\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"EGR valve malfunctions\">EGR valve malfunctions<\/a>, it can allow exhaust gases to circulate back into the engine during inappropriate times. This can cause the engine to perform poorly.<\/p>\n\n\n\n<p>There are a lot of issues that can cause an engine to have reduced power. Your vehicle&rsquo;s PCM can detect some of these issues and can illuminate the check engine light on your gauge cluster. If your <a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"check engine light is illuminated\">check engine light is illuminated<\/a>, then there&rsquo;s a good chance your vehicle has one of these previously mentioned issues. Your best course of action is to go to a reputable auto shop to have the problem diagnosed and fixed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Solve Power Loss With New Catalytic Converters and Fuel Filters<\/h2>\n\n\n\n<p>Clogged catalytic converters and fuel filters can cause your vehicle to produce less power and produce more emissions. This isn&rsquo;t just annoying as a driver, but also a health concern for you and your community. Don&rsquo;t let your vehicle&rsquo;s performance suffer and replace any clogged components immediately.<\/p>\n\n\n\n<p>Luckily, <a href=\"https:\/\/www.carparts.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"CarParts.com\">CarParts.com<\/a> is a trusted source for vehicle parts and accessories. You can be confident that our fuel filters and catalytic converters are high quality as we source them from the most reputable aftermarket brands.<\/p>\n\n\n\n<p>When shopping for catalytic converters and fuel filters, you&rsquo;ll need to choose the model compatible with your vehicle model. Luckily, that&rsquo;s as easy as pie since we have a vehicle selector that allows you to filter results to parts compatible with your vehicle model.<\/p>\n\n\n\n<p>So what are you waiting for? Shop for high-quality <a href=\"https:\/\/www.carparts.com\/blog\/catalytic-converter-history\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"catalytic converters\">catalytic converters<\/a> and <a href=\"https:\/\/www.carparts.com\/fuel-filter\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel filters\">fuel filters<\/a> here at CarParts.com today!<\/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>Diesel engines produce a lot of torque. This is why trucks and other cargo vehicles have them. They can perform&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/does-your-diesel-engine-have-power-loss-when-its-under-load\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":117819,"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-117616","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 v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Does Your Diesel Engine Have Power Loss When It\u2019s Under Load? - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Diesel engines can have problems that can cause them to lose power under load. 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