{"id":7525,"date":"2026-06-09T05:50:45","date_gmt":"2026-06-09T05:50:45","guid":{"rendered":"http:\/\/australianholden.com\/?p=7525"},"modified":"2026-06-21T03:17:58","modified_gmt":"2026-06-21T03:17:58","slug":"ecotec-commodore-intake-manifold-gasket-problems","status":"publish","type":"post","link":"https:\/\/australianholden.com\/index.php\/2026\/06\/09\/ecotec-commodore-intake-manifold-gasket-problems\/","title":{"rendered":"Ecotec Commodore Intake Manifold Gasket Problems"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Intake manifold gasket failure is one of the most common engine problems affecting Holden Ecotec V6-powered Commodores. Found in VS Series II, VT, VX, VU, WH, and VY models, the Ecotec engine is generally very reliable, but the intake manifold gaskets are a well-known weak point as the engine ages.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A failing intake manifold gasket can cause coolant leaks, vacuum leaks, rough running, overheating, and even engine damage if left unattended. Fortunately, the problem is well understood and can usually be repaired before serious issues develop.<\/p>\n\n\n<div id=\"fu_ebay_0\"><!-- Presentation: cols = 4, rows = 2, slideshow = Manual, slides = 3, slideId = 0 --><div class=\"fu_ebay_results_container \">\n<h5 class=\"fu_ebay_results_title\" style=\"display: block !important;\">\n<a name=\"fu_slidetop_0\"><\/a><a href=\"https:\/\/www.ebay.com.au\/?mkcid=1&#038;mkrid=705-53470-19255-0&#038;siteid=15&#038;campid=5339152561&#038;customid=5339151688&#038;toolid=10049&#038;mkevt=1\" class=\"fu_ebay\" style=\"display:inline !important;\" rel=\"nofollow\" target=\"_blank\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/australianholden.com\/wp-content\/plugins\/fast-ebay-listings\/US\/Right_Now_108x45.gif?resize=108%2C45&#038;ssl=1\" style=\"border:0;display:block !important;\" width=\"108\" height=\"45\" alt=\"Right Now on eBay\"\/><\/a>&nbsp;Manifold Gasket<\/h5>\nLoading&#8230;<\/div>\n<\/div>\n<script>\n<!--\nvar content_fu_ebay_0 = null;\nvar waitForDepends_fu_ebay_0 = setInterval(function () {\n  if (typeof jQuery !== \"undefined\") {\n  if (window.fu_is_bot_useragent !== undefined) {\n    clearInterval(waitForDepends_fu_ebay_0);\n    if (typeof jQuery.ajax == \"undefined\") {\n      console.log(\"Fast eBay Listings: jQuery.ajax missing. Are you using jQuery.Slim that doesn't include ajax? \");\n      return;\n    }\n    if (fu_is_bot_useragent) return;\n    content_fu_ebay_0 = jQuery(\"#fu_ebay_0\");\n    jQuery(document).ready(jQuery.ajax({\n      type : \"post\",\n      url : \"https:\/\/australianholden.com\/wp-admin\/admin-ajax.php\",\n      data : {\n        action : \"fu_ebay_load_search\",\nfuDisableAPICache : 0,\nfuTraceLogging : 0,\nebay_country : \"AU\",\nfu_ebay_customId : \"\",\nfu_ebay_widget : 0,\nfu_ebay_picwidth : 225,\nfu_ebay_arrangement : 0,\nfu_ebay_title : \"Manifold Gasket\",\nfu_ebay_query : \"Ecotec Commodore Intake Manifold Gasket\",\nfu_ebay_searchInDesc : 0,\nfu_ebay_searchLocation : \"Internationally\",\nfu_ebay_pickupPostcode : \"\",\nfu_ebay_pickupRadius : 0,\nfu_ebay_sort : \"BestMatch\",\nfu_ebay_categoryIds : \"6030\",\nfu_ebay_sellers : \"\",\nfu_ebay_sellerType : \"\",\nfu_ebay_buyingOptions : \"\",\nfu_ebay_conditionOptions : \"\",\nfu_ebay_minPrice : 0,\nfu_ebay_maxPrice : 0,\nfu_ebay_minBids : 0,\nfu_ebay_maxBids : 0,\nfu_cols : 4,\nfu_rows : 2,\nfu_slideshow : \"Manual\",\nfu_slides : 3,\nfu_slideId : 0,\n\n      },\n      success : function( response ) {\n        content_fu_ebay_0.html( response );\n      },\n      error: function(e) {\n        console.log(\"Fast eBay Listings: deferred loading error: \" + e);\n      }\n    }));\n  }}\n}, 10);\n\/\/-->\n<\/script>\n\n\n\n<h1 class=\"wp-block-heading\">What Does the Intake Manifold Gasket Do?<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The intake manifold gasket seals the connection between the intake manifold and the cylinder heads.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Its Functions Include<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sealing intake vacuum<\/li>\n\n\n\n<li>Preventing coolant leaks<\/li>\n\n\n\n<li>Separating oil and coolant passages<\/li>\n\n\n\n<li>Maintaining correct engine performance<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">When the gasket fails, coolant, air, or oil can leak where they shouldn&#8217;t.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Why Ecotec Intake Manifold Gaskets Fail<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Several factors contribute to gasket failure.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Common Causes<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Heat cycling<\/li>\n\n\n\n<li>Age-related deterioration<\/li>\n\n\n\n<li>Cooling system neglect<\/li>\n\n\n\n<li>Gasket material breakdown<\/li>\n\n\n\n<li>High engine kilometres<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Most failures occur after many years of service rather than from a sudden defect.<\/p>\n\n\n<div id=\"fu_ebay_1\"><!-- Presentation: cols = 4, rows = 2, slideshow = Manual, slides = 3, slideId = 1 --><div class=\"fu_ebay_results_container \">\n<h5 class=\"fu_ebay_results_title\" style=\"display: block !important;\">\n<a name=\"fu_slidetop_1\"><\/a><a href=\"https:\/\/www.ebay.com.au\/?mkcid=1&#038;mkrid=705-53470-19255-0&#038;siteid=15&#038;campid=5339152561&#038;customid=5339151688&#038;toolid=10049&#038;mkevt=1\" class=\"fu_ebay\" style=\"display:inline !important;\" rel=\"nofollow\" target=\"_blank\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/australianholden.com\/wp-content\/plugins\/fast-ebay-listings\/US\/Right_Now_108x45.gif?resize=108%2C45&#038;ssl=1\" style=\"border:0;display:block !important;\" width=\"108\" height=\"45\" alt=\"Right Now on eBay\"\/><\/a>&nbsp;Ecotec<\/h5>\nLoading&#8230;<\/div>\n<\/div>\n<script>\n<!--\nvar content_fu_ebay_1 = null;\nvar waitForDepends_fu_ebay_1 = setInterval(function () {\n  if (typeof jQuery !== \"undefined\") {\n  if (window.fu_is_bot_useragent !== undefined) {\n    clearInterval(waitForDepends_fu_ebay_1);\n    if (typeof jQuery.ajax == \"undefined\") {\n      console.log(\"Fast eBay Listings: jQuery.ajax missing. Are you using jQuery.Slim that doesn't include ajax? \");\n      return;\n    }\n    if (fu_is_bot_useragent) return;\n    content_fu_ebay_1 = jQuery(\"#fu_ebay_1\");\n    jQuery(document).ready(jQuery.ajax({\n      type : \"post\",\n      url : \"https:\/\/australianholden.com\/wp-admin\/admin-ajax.php\",\n      data : {\n        action : \"fu_ebay_load_search\",\nfuDisableAPICache : 0,\nfuTraceLogging : 0,\nebay_country : \"AU\",\nfu_ebay_customId : \"\",\nfu_ebay_widget : 0,\nfu_ebay_picwidth : 225,\nfu_ebay_arrangement : 0,\nfu_ebay_title : \"Ecotec\",\nfu_ebay_query : \"Ecotec\",\nfu_ebay_searchInDesc : 0,\nfu_ebay_searchLocation : \"Internationally\",\nfu_ebay_pickupPostcode : \"\",\nfu_ebay_pickupRadius : 0,\nfu_ebay_sort : \"BestMatch\",\nfu_ebay_categoryIds : \"6030\",\nfu_ebay_sellers : \"\",\nfu_ebay_sellerType : \"\",\nfu_ebay_buyingOptions : \"\",\nfu_ebay_conditionOptions : \"\",\nfu_ebay_minPrice : 0,\nfu_ebay_maxPrice : 0,\nfu_ebay_minBids : 0,\nfu_ebay_maxBids : 0,\nfu_cols : 4,\nfu_rows : 2,\nfu_slideshow : \"Manual\",\nfu_slides : 3,\nfu_slideId : 1,\n\n      },\n      success : function( response ) {\n        content_fu_ebay_1.html( response );\n      },\n      error: function(e) {\n        console.log(\"Fast eBay Listings: deferred loading error: \" + e);\n      }\n    }));\n  }}\n}, 10);\n\/\/-->\n<\/script>\n\n\n\n<h1 class=\"wp-block-heading\">Common Symptoms of Intake Manifold Gasket Failure<\/h1>\n\n\n\n<h1 class=\"wp-block-heading\">1. Unexplained Coolant Loss<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The most common symptom.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Signs<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Coolant level drops regularly<\/li>\n\n\n\n<li>No obvious radiator leaks<\/li>\n\n\n\n<li>Overflow bottle requires topping up<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Many owners first notice the problem through gradual coolant loss.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">2. External Coolant Leaks<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Coolant often leaks from the gasket externally.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Coolant around intake manifold area<\/li>\n\n\n\n<li>Coolant staining on engine block<\/li>\n\n\n\n<li>Sweet coolant smell<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Leaks are often visible near the front or rear of the intake manifold.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">3. Overheating<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">A serious warning sign.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rising temperature gauge<\/li>\n\n\n\n<li>Frequent overheating<\/li>\n\n\n\n<li>Coolant warning lights<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Continued driving can cause significant engine damage.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">4. Rough Idle<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Vacuum leaks can develop as the gasket deteriorates.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Unstable idle<\/li>\n\n\n\n<li>Engine shaking<\/li>\n\n\n\n<li>Stalling at idle<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">5. Poor Fuel Economy<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Air leaks affect fuel mixture calculations.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Increased fuel consumption<\/li>\n\n\n\n<li>Reduced efficiency<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">6. Check Engine Light<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Not always present, but possible.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Common Codes<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lean mixture codes<\/li>\n\n\n\n<li>Misfire codes<\/li>\n\n\n\n<li>Vacuum leak-related faults<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">7. Coolant Smell From Engine Bay<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">A common early indicator.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sweet smell after driving<\/li>\n\n\n\n<li>Steam from engine area<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">8. Coolant Deposits Around Intake Manifold<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Visible evidence of leakage.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Look For<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>White residue<\/li>\n\n\n\n<li>Dried coolant stains<\/li>\n\n\n\n<li>Green, red, or orange deposits depending on coolant type<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">Internal vs External Gasket Leaks<\/h1>\n\n\n\n<h1 class=\"wp-block-heading\">External Leaks<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Most common on Ecotec engines.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Visible coolant leakage<\/li>\n\n\n\n<li>Coolant smell<\/li>\n\n\n\n<li>Engine bay contamination<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">Internal Leaks<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Less common but more serious.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Coolant entering combustion chamber<\/li>\n\n\n\n<li>White exhaust smoke<\/li>\n\n\n\n<li>Engine misfires<\/li>\n\n\n\n<li>Possible coolant contamination<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Internal leaks require immediate attention.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">How to Diagnose Intake Manifold Gasket Problems<\/h1>\n\n\n\n<h1 class=\"wp-block-heading\">Step 1: Check Coolant Level<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Monitor coolant loss over several days.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Step 2: Inspect Intake Manifold Area<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Look for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Coolant residue<\/li>\n\n\n\n<li>Wet areas<\/li>\n\n\n\n<li>Staining<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">Step 3: Perform Cooling System Pressure Test<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">A pressure test can reveal hidden leaks.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Step 4: Check for Vacuum Leaks<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Listen for hissing sounds around the intake manifold.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Step 5: Scan for Fault Codes<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Vacuum leaks may trigger lean condition codes.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Common Misdiagnoses<\/h1>\n\n\n\n<h1 class=\"wp-block-heading\">Water Pump Failure<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Both can cause coolant loss.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Radiator Leaks<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Coolant often runs down the engine, making diagnosis difficult.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Heater Hose Leaks<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Can appear similar to intake gasket failures.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Head Gasket Problems<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Internal intake leaks may mimic head gasket symptoms.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Typical Repair Procedure<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Repair generally involves:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Steps<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Drain coolant<\/li>\n\n\n\n<li>Remove intake manifold<\/li>\n\n\n\n<li>Replace intake manifold gaskets<\/li>\n\n\n\n<li>Inspect manifold surfaces<\/li>\n\n\n\n<li>Reassemble and refill coolant<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Many owners replace additional seals during the repair.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Additional Components Worth Replacing<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Since access is available during the repair, consider replacing:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Recommended Items<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Thermostat<\/li>\n\n\n\n<li>Heater hoses<\/li>\n\n\n\n<li>Coolant bypass hoses<\/li>\n\n\n\n<li>Rocker cover gaskets<\/li>\n\n\n\n<li>PCV components<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Preventative maintenance can save labour costs later.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">How Much Damage Can a Failed Gasket Cause?<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">If ignored, intake manifold gasket leaks can lead to:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Potential Problems<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chronic overheating<\/li>\n\n\n\n<li>Engine damage<\/li>\n\n\n\n<li>Coolant contamination<\/li>\n\n\n\n<li>Reduced fuel economy<\/li>\n\n\n\n<li>Poor drivability<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Early repair is strongly recommended.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Can You Drive With a Leaking Intake Gasket?<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">A minor leak may not immediately disable the vehicle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Risks<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Coolant loss can worsen rapidly<\/li>\n\n\n\n<li>Overheating can occur unexpectedly<\/li>\n\n\n\n<li>Engine damage becomes more likely<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The problem should be repaired as soon as practical.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Preventing Future Intake Gasket Failures<\/h1>\n\n\n\n<h1 class=\"wp-block-heading\">Maintain Coolant Quality<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Old coolant accelerates gasket deterioration.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Prevent Overheating<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Excessive heat shortens gasket life.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Service Cooling System Regularly<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Replace coolant at recommended intervals.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Address Small Leaks Early<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Minor leaks often become major repairs.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Warning Signs That Require Immediate Attention<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rapid coolant loss<\/li>\n\n\n\n<li>Persistent overheating<\/li>\n\n\n\n<li>White exhaust smoke<\/li>\n\n\n\n<li>Coolant contamination<\/li>\n\n\n\n<li>Severe rough running<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Immediate diagnosis is recommended.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Intake manifold gasket failure is one of the most common and well-known issues affecting Holden Ecotec V6 engines. Most failures begin as small coolant leaks but can eventually lead to overheating, drivability issues, and expensive repairs if ignored.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fortunately, the problem is easily diagnosed and repairable using quality replacement gaskets. By monitoring coolant levels, maintaining the cooling system, and addressing leaks early, Ecotec owners can avoid serious engine damage and keep their Commodore running reliably for many years.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Related Articles<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/09\/common-ecotec-engine-problems\/\" type=\"post\" id=\"7518\">Common Ecotec Engine Problems<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/09\/ecotec-oil-leak-guide\/\" type=\"post\" id=\"7516\">Ecotec Oil Leak Guide<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Best Coolants for Ecotec Engines<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/australianholden.com\/index.php\/australian-holden\/commodores\/vx-commodore\/vx-commodore-cooling-system\/\" type=\"page\" id=\"6536\">VX Commodore Cooling System Problems<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Best Engine Oils for Ecotec Engines<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Intake manifold gasket failure is one of the most common engine problems affecting Holden Ecotec V6-powered Commodores. Found in VS Series II, VT, VX, VU, WH, and VY models, the Ecotec engine is generally very reliable, but the intake manifold gaskets are a well-known weak point as the engine ages. A failing intake manifold gasket [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3461,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1],"tags":[],"class_list":["post-7525","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ecotec Commodore Intake Manifold Gasket Problems - Australian 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