Article sur les causes de fum\u00e9e noire ou grise excessive dans le moteur de la pelle Caterpillar 325C<\/title><br \/>\n<\/head><br \/>\n<body><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_73 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Summary<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#Causes_et_solutions_de_la_generation_de_liquide_de_refroidissement_et_de_fumee_noire_ou_grise_excessive_dans_le_moteur_de_la_pelle_Caterpillar_325C\" title=\"Causes and Solutions for Excessive Coolant and Black or Gray Smoke Generation in Caterpillar 325C Excavator Engine\">Causes and Solutions for Excessive Coolant and Black or Gray Smoke Generation in Caterpillar 325C Excavator Engine<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#Introduction\" title=\"Introduction\">Introduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#Causes_et_solutions_de_la_presence_de_liquide_de_refroidissement_dans_lhuile_de_lubrification\" title=\"Causes and solutions for the presence of coolant in the lubricating oil\">Causes and solutions for the presence of coolant in the lubricating oil<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#1_Le_radiateur_dhuile_du_moteur_est_endommage\" title=\"1. The engine oil cooler is damaged\">1. The engine oil cooler is damaged<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#2_Le_joint_de_culasse_est_endommage\" title=\"2. The head gasket is damaged\">2. The head gasket is damaged<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#3_La_culasse_est_fissuree_ou_defectueuse\" title=\"3. The cylinder head is cracked or defective\">3. The cylinder head is cracked or defective<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#4_Le_bloc-cylindres_presente_des_fissures_ou_des_defauts\" title=\"4. The cylinder block has cracks or defects\">4. The cylinder block has cracks or defects<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#5_Le_joint_de_couvercle_avant_est_endommage\" title=\"5. The front cover gasket is damaged\">5. The front cover gasket is damaged<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#6_Le_trou_de_purge_de_la_pompe_a_eau_est_obstrue_et_le_joint_detancheite_de_la_pompe_a_eau_est_defectueux\" title=\"6. The water pump bleed hole is clogged and the water pump seal is defective\">6. The water pump bleed hole is clogged and the water pump seal is defective<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#Causes_et_solutions_de_la_fumee_noire_ou_grise_excessive\" title=\"Causes and Solutions for Excessive Black or Gray Smoke\">Causes and Solutions for Excessive Black or Gray Smoke<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#1_Air_insuffisant_pendant_la_combustion\" title=\"1. Insufficient air during combustion\">1. Insufficient air during combustion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#2_Linjecteur_de_carburant_est_defectueux\" title=\"2. Fuel injector is faulty\">2. Fuel injector is faulty<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#3_Erreur_de_calage_de_linjection_de_carburant\" title=\"3. Fuel injection timing error\">3. Fuel injection timing error<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#Conclusion\" title=\"Conclusion\">Conclusion<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#Produits_associes\" title=\"Associated products :\">Associated products :<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"Causes_et_solutions_de_la_generation_de_liquide_de_refroidissement_et_de_fumee_noire_ou_grise_excessive_dans_le_moteur_de_la_pelle_Caterpillar_325C\"><\/span>Causes and Solutions for Excessive Coolant and Black or Gray Smoke Generation in Caterpillar 325C Excavator Engine<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h2><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>Introduction<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The Caterpillar 325C excavator is a powerful machine used in a variety of applications. However, there may be problems with the engine of this excavator, such as generating excessive coolant and black or gray smoke. In this article, we will examine the possible causes of these problems and offer you solutions.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Causes_et_solutions_de_la_presence_de_liquide_de_refroidissement_dans_lhuile_de_lubrification\"><\/span>Causes and solutions for the presence of coolant in the lubricating oil<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"1_Le_radiateur_dhuile_du_moteur_est_endommage\"><\/span>1. The engine oil cooler is damaged<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If the engine oil cooler is damaged, it can cause coolant to be present in the lubricating oil. In this case, it is recommended to replace the faulty oil cooler with a new one.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Le_joint_de_culasse_est_endommage\"><\/span>2. The head gasket is damaged<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A damaged head gasket can also cause coolant problems in the lubricating oil. To resolve this problem, install a new head gasket and tighten the bolts securing the cylinder head.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_La_culasse_est_fissuree_ou_defectueuse\"><\/span>3. The cylinder head is cracked or defective<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If the cylinder head is cracked or defective, it is recommended to replace it with a new one.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Le_bloc-cylindres_presente_des_fissures_ou_des_defauts\"><\/span>4. The cylinder block has cracks or defects<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If the cylinder block has cracks or defects, it is necessary to replace it with a new cylinder block.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_Le_joint_de_couvercle_avant_est_endommage\"><\/span>5. The front cover gasket is damaged<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If the front cover gasket is damaged, it is recommended to replace it with a new gasket.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6_Le_trou_de_purge_de_la_pompe_a_eau_est_obstrue_et_le_joint_detancheite_de_la_pompe_a_eau_est_defectueux\"><\/span>6. The water pump bleed hole is clogged and the water pump seal is defective<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If the water pump bleed hole is clogged or the water pump gasket is defective, you need to clean the water pump bleed hole and replace the gasket.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Causes_et_solutions_de_la_fumee_noire_ou_grise_excessive\"><\/span>Causes and Solutions for Excessive Black or Gray Smoke<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"1_Air_insuffisant_pendant_la_combustion\"><\/span>1. Insufficient air during combustion<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Check if the air filter is clogged. The maximum air filter pressure should be 7.5 kPa.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Linjecteur_de_carburant_est_defectueux\"><\/span>2. Fuel injector is faulty<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If the fuel injector is defective, it is recommended to replace it with a new injector.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Erreur_de_calage_de_linjection_de_carburant\"><\/span>3. Fuel injection timing error<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Adjust the fuel injection timing to resolve this problem.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In conclusion, it is important to know the possible causes of excessive coolant and black or gray smoke generation in the Caterpillar 325C excavator engine. By identifying and resolving these issues, you can maintain peak performance of your excavator and extend its life.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Produits_associes\"><\/span>Associated products :<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><a href=\"https:\/\/www.obd2tool.com\/category-223-b0-CAT+Caterpillar+ET+Diagnostic+Adapter.html\" target=\"_blank\" rel=\"noopener\">CAT Caterpillar ET Diagnostic Adapter<\/a><\/li>\n<\/ul>\n<p>For more information on Caterpillar, please visit our section of <a href=\"https:\/\/www.obd2tool.com\/blog\/category\/caterpillar-trouble-repair\/\" target=\"_blank\" rel=\"noopener\">repairing Caterpillar problems<\/a>.<\/p>\n<p><\/body><br \/>\n<\/html><\/p>","protected":false},"excerpt":{"rendered":"<p>Article sur les causes de fum\u00e9e noire ou grise excessive dans le moteur de la pelle Caterpillar 325C Causes et solutions de la g\u00e9n\u00e9ration de liquide de refroidissement et de fum\u00e9e noire ou grise excessive dans le moteur de la pelle Caterpillar 325C Introduction La pelle Caterpillar 325C est un engin puissant utilis\u00e9 dans diverses […]<\/p>","protected":false},"author":1,"featured_media":394864,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-394835","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-obd-diag-fr"],"acf":[],"featured_image_src":{"landsacpe":["https:\/\/obd-diag.fr\/wp-content\/uploads\/2023\/08\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions.jpg",842,445,false],"list":["https:\/\/obd-diag.fr\/wp-content\/uploads\/2023\/08\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions.jpg",463,245,false],"medium":["https:\/\/obd-diag.fr\/wp-content\/uploads\/2023\/08\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions-300x159.jpg",300,159,true],"full":["https:\/\/obd-diag.fr\/wp-content\/uploads\/2023\/08\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions.jpg",1409,745,false]},"_links":{"self":[{"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/posts\/394835","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/comments?post=394835"}],"version-history":[{"count":0,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/posts\/394835\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/media\/394864"}],"wp:attachment":[{"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/media?parent=394835"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/categories?post=394835"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/tags?post=394835"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

{"id":394835,"date":"2023-08-14T00:30:15","date_gmt":"2023-08-14T00:30:15","guid":{"rendered":"https:\/\/obd-diag.fr\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/"},"modified":"2023-08-14T00:30:15","modified_gmt":"2023-08-14T00:30:15","slug":"fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions","status":"publish","type":"post","link":"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/","title":{"rendered":"Excessive black or gray smoke in Caterpillar engine lubricant: causes and solutions"},"content":{"rendered":"

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\n\tArticle sur les causes de fum\u00e9e noire ou grise excessive dans le moteur de la pelle Caterpillar 325C<\/title><br \/>\n<\/head><br \/>\n<body><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_73 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Summary<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#Causes_et_solutions_de_la_generation_de_liquide_de_refroidissement_et_de_fumee_noire_ou_grise_excessive_dans_le_moteur_de_la_pelle_Caterpillar_325C\" title=\"Causes and Solutions for Excessive Coolant and Black or Gray Smoke Generation in Caterpillar 325C Excavator Engine\">Causes and Solutions for Excessive Coolant and Black or Gray Smoke Generation in Caterpillar 325C Excavator Engine<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#Introduction\" title=\"Introduction\">Introduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#Causes_et_solutions_de_la_presence_de_liquide_de_refroidissement_dans_lhuile_de_lubrification\" title=\"Causes and solutions for the presence of coolant in the lubricating oil\">Causes and solutions for the presence of coolant in the lubricating oil<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#1_Le_radiateur_dhuile_du_moteur_est_endommage\" title=\"1. The engine oil cooler is damaged\">1. The engine oil cooler is damaged<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#2_Le_joint_de_culasse_est_endommage\" title=\"2. The head gasket is damaged\">2. The head gasket is damaged<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#3_La_culasse_est_fissuree_ou_defectueuse\" title=\"3. The cylinder head is cracked or defective\">3. The cylinder head is cracked or defective<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#4_Le_bloc-cylindres_presente_des_fissures_ou_des_defauts\" title=\"4. The cylinder block has cracks or defects\">4. The cylinder block has cracks or defects<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#5_Le_joint_de_couvercle_avant_est_endommage\" title=\"5. The front cover gasket is damaged\">5. The front cover gasket is damaged<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#6_Le_trou_de_purge_de_la_pompe_a_eau_est_obstrue_et_le_joint_detancheite_de_la_pompe_a_eau_est_defectueux\" title=\"6. The water pump bleed hole is clogged and the water pump seal is defective\">6. The water pump bleed hole is clogged and the water pump seal is defective<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#Causes_et_solutions_de_la_fumee_noire_ou_grise_excessive\" title=\"Causes and Solutions for Excessive Black or Gray Smoke\">Causes and Solutions for Excessive Black or Gray Smoke<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#1_Air_insuffisant_pendant_la_combustion\" title=\"1. Insufficient air during combustion\">1. Insufficient air during combustion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#2_Linjecteur_de_carburant_est_defectueux\" title=\"2. Fuel injector is faulty\">2. Fuel injector is faulty<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#3_Erreur_de_calage_de_linjection_de_carburant\" title=\"3. Fuel injection timing error\">3. Fuel injection timing error<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#Conclusion\" title=\"Conclusion\">Conclusion<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/obd-diag.fr\/en\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions\/#Produits_associes\" title=\"Associated products :\">Associated products :<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"Causes_et_solutions_de_la_generation_de_liquide_de_refroidissement_et_de_fumee_noire_ou_grise_excessive_dans_le_moteur_de_la_pelle_Caterpillar_325C\"><\/span>Causes and Solutions for Excessive Coolant and Black or Gray Smoke Generation in Caterpillar 325C Excavator Engine<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h2><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>Introduction<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The Caterpillar 325C excavator is a powerful machine used in a variety of applications. However, there may be problems with the engine of this excavator, such as generating excessive coolant and black or gray smoke. In this article, we will examine the possible causes of these problems and offer you solutions.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Causes_et_solutions_de_la_presence_de_liquide_de_refroidissement_dans_lhuile_de_lubrification\"><\/span>Causes and solutions for the presence of coolant in the lubricating oil<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"1_Le_radiateur_dhuile_du_moteur_est_endommage\"><\/span>1. The engine oil cooler is damaged<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If the engine oil cooler is damaged, it can cause coolant to be present in the lubricating oil. In this case, it is recommended to replace the faulty oil cooler with a new one.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Le_joint_de_culasse_est_endommage\"><\/span>2. The head gasket is damaged<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A damaged head gasket can also cause coolant problems in the lubricating oil. To resolve this problem, install a new head gasket and tighten the bolts securing the cylinder head.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_La_culasse_est_fissuree_ou_defectueuse\"><\/span>3. The cylinder head is cracked or defective<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If the cylinder head is cracked or defective, it is recommended to replace it with a new one.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Le_bloc-cylindres_presente_des_fissures_ou_des_defauts\"><\/span>4. The cylinder block has cracks or defects<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If the cylinder block has cracks or defects, it is necessary to replace it with a new cylinder block.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_Le_joint_de_couvercle_avant_est_endommage\"><\/span>5. The front cover gasket is damaged<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If the front cover gasket is damaged, it is recommended to replace it with a new gasket.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6_Le_trou_de_purge_de_la_pompe_a_eau_est_obstrue_et_le_joint_detancheite_de_la_pompe_a_eau_est_defectueux\"><\/span>6. The water pump bleed hole is clogged and the water pump seal is defective<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If the water pump bleed hole is clogged or the water pump gasket is defective, you need to clean the water pump bleed hole and replace the gasket.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Causes_et_solutions_de_la_fumee_noire_ou_grise_excessive\"><\/span>Causes and Solutions for Excessive Black or Gray Smoke<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"1_Air_insuffisant_pendant_la_combustion\"><\/span>1. Insufficient air during combustion<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Check if the air filter is clogged. The maximum air filter pressure should be 7.5 kPa.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Linjecteur_de_carburant_est_defectueux\"><\/span>2. Fuel injector is faulty<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If the fuel injector is defective, it is recommended to replace it with a new injector.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Erreur_de_calage_de_linjection_de_carburant\"><\/span>3. Fuel injection timing error<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Adjust the fuel injection timing to resolve this problem.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In conclusion, it is important to know the possible causes of excessive coolant and black or gray smoke generation in the Caterpillar 325C excavator engine. By identifying and resolving these issues, you can maintain peak performance of your excavator and extend its life.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Produits_associes\"><\/span>Associated products :<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><a href=\"https:\/\/www.obd2tool.com\/category-223-b0-CAT+Caterpillar+ET+Diagnostic+Adapter.html\" target=\"_blank\" rel=\"noopener\">CAT Caterpillar ET Diagnostic Adapter<\/a><\/li>\n<\/ul>\n<p>For more information on Caterpillar, please visit our section of <a href=\"https:\/\/www.obd2tool.com\/blog\/category\/caterpillar-trouble-repair\/\" target=\"_blank\" rel=\"noopener\">repairing Caterpillar problems<\/a>.<\/p>\n<p><\/body><br \/>\n<\/html><\/p>","protected":false},"excerpt":{"rendered":"<p>Article sur les causes de fum\u00e9e noire ou grise excessive dans le moteur de la pelle Caterpillar 325C Causes et solutions de la g\u00e9n\u00e9ration de liquide de refroidissement et de fum\u00e9e noire ou grise excessive dans le moteur de la pelle Caterpillar 325C Introduction La pelle Caterpillar 325C est un engin puissant utilis\u00e9 dans diverses […]<\/p>","protected":false},"author":1,"featured_media":394864,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-394835","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-obd-diag-fr"],"acf":[],"featured_image_src":{"landsacpe":["https:\/\/obd-diag.fr\/wp-content\/uploads\/2023\/08\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions.jpg",842,445,false],"list":["https:\/\/obd-diag.fr\/wp-content\/uploads\/2023\/08\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions.jpg",463,245,false],"medium":["https:\/\/obd-diag.fr\/wp-content\/uploads\/2023\/08\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions-300x159.jpg",300,159,true],"full":["https:\/\/obd-diag.fr\/wp-content\/uploads\/2023\/08\/fumee-noire-ou-grise-excessive-dans-le-lubrifiant-du-moteur-caterpillar-causes-et-solutions.jpg",1409,745,false]},"_links":{"self":[{"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/posts\/394835","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/comments?post=394835"}],"version-history":[{"count":0,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/posts\/394835\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/media\/394864"}],"wp:attachment":[{"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/media?parent=394835"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/categories?post=394835"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/tags?post=394835"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}