{"id":39807,"date":"2021-06-07T13:43:01","date_gmt":"2021-06-07T20:43:01","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=39807"},"modified":"2023-10-12T00:42:10","modified_gmt":"2023-10-12T07:42:10","slug":"my-1976-cadillac-eldorado-cranks-but-doesnt-start-what-could-be-the-cause","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/my-1976-cadillac-eldorado-cranks-but-doesnt-start-what-could-be-the-cause\/","title":{"rendered":"My 1976 Cadillac Eldorado Cranks but Doesn\u2019t Start. What Could Be the Cause?"},"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\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_ca4cdf-38 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_ca4cdf-38 > .kt-inside-inner-col,.kadence-column_ca4cdf-38 > .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_ca4cdf-38 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_ca4cdf-38 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_ca4cdf-38 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_ca4cdf-38 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_ca4cdf-38{position:relative;}@media all and (max-width: 1024px){.kadence-column_ca4cdf-38 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_ca4cdf-38 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_ca4cdf-38 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-6d4f05  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-6b7297\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_14f9c8-2e, .wp-block-kadence-advancedheading.kt-adv-heading_14f9c8-2e[data-kb-block=\"kb-adv-heading_14f9c8-2e\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_14f9c8-2e mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_14f9c8-2e[data-kb-block=\"kb-adv-heading_14f9c8-2e\"] 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_14f9c8-2e img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_14f9c8-2e[data-kb-block=\"kb-adv-heading_14f9c8-2e\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_14f9c8-2e summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_14f9c8-2e\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Your 1976 Cadillac Eldorado might crank but refuse to start because the electronic control module (ECM) isn&rsquo;t pulsing the injectors.<\/li><li>A faulty sensor, wiring issues, or ECM failure are possible causes why the ECM is failing to pulse the fuel injectors and preventing your Cadillac Eldorado from starting.<\/li><li>Another possible reason why your 1976 Cadillac Eldorado cranks but won&rsquo;t start is an engine mechanical problem, such as a damaged timing chain.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Q: I have a <a href=\"https:\/\/www.carparts.com\/vehicle\/1976\/Cadillac\/Eldorado\/Biarritz\/8_Cyl_8-dot-2L\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"1976 Cadillac Eldorado 500 with an 8.2L fuel-injected engine\">1976 Cadillac Eldorado 500 with an 8.2L fuel-injected engine<\/a>. The engine cranks but doesn&rsquo;t start. Both fuel and spark are present. What could be preventing the engine from starting? <\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">&ndash; Rod T McClashie from Mesa, Arizona<\/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\/2021\/06\/starting-a-vehicle-1024x683.jpg\" alt=\"driver starting a vehicle\" class=\"wp-image-39832\" width=\"1024\" height=\"683\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/06\/starting-a-vehicle-1024x683.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/06\/starting-a-vehicle-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/06\/starting-a-vehicle-768x513.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/06\/starting-a-vehicle-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/06\/starting-a-vehicle-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/06\/starting-a-vehicle.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Issues such as a faulty sensor (e.g., engine speed sensor), a wiring problem, or an issue with the ECM itself could prevent your vehicle engine from starting.<\/figcaption><\/figure>\n\n\n\n<p><strong>A: <\/strong>Hi, Rod. When you say the engine is getting fuel, I&rsquo;m guessing you mean that there is good fuel pressure. What you might be missing, however, is injector pulse&mdash;the onboard engine management system &ldquo;pulsing&rdquo; the injectors on. <\/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<p>Your vintage Cadillac has a fairly modern electronic fuel injection system that includes an <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"electronic control module (ECM)\">electronic control module (ECM)<\/a>, sensors, and <a href=\"https:\/\/www.carparts.com\/fuel-injector\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel injectors\">fuel injectors<\/a>. The ECM uses input from the sensors to determine when to fire the injectors.&nbsp;<\/p>\n\n\n\n<p>One of the easiest ways to check for injector pulse is with a noid light. You simply disconnect the electrical connector from the injector, then insert the noid light into the female side of the connector. Crank the engine and monitor the noid light.  Repeat this test on a few different cylinders. If the light does NOT illuminate during testing, there&rsquo;s no injector pulse, which indicates the ECM is not commanding the injectors on.&nbsp;<\/p>\n\n\n\n<p>From there, you&rsquo;ll need to determine why the ECM is not pulsing the injectors. The issue could be a faulty sensor (e.g., engine speed sensor), a wiring problem, or an issue with the ECM itself.&nbsp;<\/p>\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\/2021\/06\/car-engine-control-module-1024x941.jpg\" alt=\"car engine control module\" class=\"wp-image-39833\" width=\"1024\" height=\"941\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/06\/car-engine-control-module-1024x941.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/06\/car-engine-control-module-300x276.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/06\/car-engine-control-module-768x706.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/06\/car-engine-control-module-150x138.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/06\/car-engine-control-module.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The ECM uses input from the sensors to determine when to fire the injectors.<\/figcaption><\/figure>\n\n\n\n<p>The other possibility is that you have an engine mechanical problem, such as a damaged <a href=\"https:\/\/www.carparts.com\/timing-chain\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"timing chain\">timing chain<\/a>, preventing the engine from starting. But if the engine cranks normally, I would lean more towards a lack of injector pulse.&nbsp;<\/p>\n\n\n\n<p>Good luck!&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Product Mentioned in this Guide<\/h2>\n\n\n\n<div class=\"reusable-productlink\">\n\n<!-- start of editable content -->\n\n<a href=\"https:\/\/www.carparts.com\/engine-control-module\/cadillac\/eldorado\" target=\"_blank\" aria-label=\"cadillac eldorado engine control module\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/a1778322_1\">\n<strong>Engine Control Module<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/fuel-injector\/cadillac\/eldorado\" target=\"_blank\" aria-label=\"cadillac eldorado fuel injector\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/repc314305_1\">\n<strong>Fuel Injector<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/timing-chain\/cadillac\/eldorado\" target=\"_blank\" aria-label=\"cadillac eldorado timing chain\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/ctc359_1\">\n<strong>Timing Chain<\/strong>\n<\/a>\n\n<!-- end of editable content -->\n\n<\/div>\n\n\n\n<script type=\"application\/ld+json\">\n{\n   \"@context\": \"https:\/\/schema.org\",\n   \"@type\": \"QAPage\",\n   \"mainEntity\": {\n      \"@type\": \"Question\",\n      \"name\": \"My 1976 Cadillac Eldorado Cranks but Doesn&rsquo;t Start. What Could Be the Cause?\",\n      \"text\": \"I have a 1976 Cadillac Eldorado 500 with an 8.2L fuel-injected engine. The engine cranks but doesn&rsquo;t start. Both fuel and spark are present. What could be preventing the engine from starting?\",\n      \"answerCount\": 1,\n      \"upvoteCount\": 0,\n      \"dateCreated\": \"2021-06-07T20:43:01Z\",\n      \"dateModified\": \"2021-06-08T06:34:13Z\",\n      \"author\": {\n         \"@type\": \"Person\",\n         \"name\": \"Rod T McClashie from Mesa, Arizona\"\n      },\n      \"acceptedAnswer\": {\n         \"@type\": \"Answer\",\n         \"text\": \"Hi, Rod. When you say the engine is getting fuel, I&rsquo;m guessing you mean that there is good fuel pressure. What you might be missing, however, is injector pulse&mdash;the onboard engine management system 'pulsing' the injectors on.\",\n         \"upvoteCount\": 0,\n         \"url\": \"https:\/\/www.carparts.com\/blog\/my-1976-cadillac-eldorado-cranks-but-doesnt-start-what-could-be-the-cause\/\",\n         \"dateCreated\": \"2021-06-07T13:43:00Z\",\n         \"author\": {\n            \"@type\": \"Person\",\n            \"name\": \"Mia Bevacqua, ASE Certified Master Automobile Technician\"\n         }\n      }\n   }\n}\n<\/script>\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\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Q: I have a 1976 Cadillac Eldorado 500 with an 8.2L fuel-injected engine. The engine cranks but doesn&rsquo;t start. Both&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/my-1976-cadillac-eldorado-cranks-but-doesnt-start-what-could-be-the-cause\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":29,"featured_media":39167,"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":[3010],"tags":[3021],"ppma_author":[2622],"class_list":{"0":"post-39807","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-ask","8":"tag-1976-cadillac-eldorado","9":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>My 1976 Cadillac Eldorado Cranks but Doesn\u2019t Start. 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