{"id":7264,"date":"2026-06-20T10:50:20","date_gmt":"2026-06-20T10:50:20","guid":{"rendered":"http:\/\/australianholden.com\/?p=7264"},"modified":"2026-06-20T22:04:44","modified_gmt":"2026-06-20T22:04:44","slug":"hd-holden-electrical-problems","status":"publish","type":"post","link":"https:\/\/australianholden.com\/index.php\/2026\/06\/20\/hd-holden-electrical-problems\/","title":{"rendered":"HD Holden Electrical Problems"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The HD Holden arrived in 1965 with a significantly updated design, improved comfort and a more modern driving experience than the EH it replaced. While the styling generated plenty of discussion at the time, the electrical system was largely conventional Holden engineering\u2014simple, reliable and easy to maintain.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, more than half a century later, age has become the biggest enemy of every HD Holden electrical system. Wiring insulation hardens and cracks, earth connections corrode, switches wear out and charging system components begin to fail. Many vehicles have also been modified over the years with aftermarket accessories, radios, driving lights and ignition upgrades, often creating additional electrical gremlins.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The good news is that most HD Holden electrical problems are relatively easy to diagnose once you understand how the original system works. <\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Understanding the HD Holden Electrical System<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The HD Holden used a conventional 12-volt negative earth electrical system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Major components included:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>12-volt battery<\/li>\n\n\n\n<li>Generator (alternator on some later conversions)<\/li>\n\n\n\n<li>Voltage regulator<\/li>\n\n\n\n<li>Starter motor<\/li>\n\n\n\n<li>Ignition coil<\/li>\n\n\n\n<li>Fuse panel<\/li>\n\n\n\n<li>Wiring harness<\/li>\n\n\n\n<li>Lighting circuits<\/li>\n\n\n\n<li>Dashboard instruments<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Compared with modern vehicles, the system is remarkably simple.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This simplicity is one of the reasons HD Holdens remain popular among restorers.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Hard Starting Problems<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">One of the most common electrical complaints involves difficult starting.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Slow cranking<\/li>\n\n\n\n<li>Clicking starter motor<\/li>\n\n\n\n<li>No crank condition<\/li>\n\n\n\n<li>Intermittent starting<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Common Causes<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Weak battery<\/li>\n\n\n\n<li>Poor earth connections<\/li>\n\n\n\n<li>Worn starter motor<\/li>\n\n\n\n<li>Corroded battery terminals<\/li>\n\n\n\n<li>Faulty ignition switch<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Before replacing expensive components, always inspect battery cables and earth straps first.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Battery Problems<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Many electrical faults originate from the battery itself.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Slow starting<\/li>\n\n\n\n<li>Dim headlights<\/li>\n\n\n\n<li>Weak horn<\/li>\n\n\n\n<li>Poor charging performance<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Why It Happens<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Classic cars often spend long periods parked between drives.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This can shorten battery life considerably.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Best Battery Upgrade<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Recommended Product: Century Classic Car Battery<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Benefits<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Designed for older vehicles<\/li>\n\n\n\n<li>Reliable starting performance<\/li>\n\n\n\n<li>Strong reserve capacity<\/li>\n\n\n\n<li>Australian conditions tested<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Best For<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Original restorations<\/li>\n\n\n\n<li>Weekend cruisers<\/li>\n\n\n\n<li>Touring vehicles<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Century batteries are widely used throughout the Australian classic car community.<\/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;Century Classic Car Battery<\/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 : \"Century Classic Car Battery\",\nfu_ebay_query : \"Century Car Battery\",\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\">Generator Charging Problems<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The HD Holden originally used a generator and external voltage regulator.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Battery warning light<\/li>\n\n\n\n<li>Flat battery<\/li>\n\n\n\n<li>Dimming headlights<\/li>\n\n\n\n<li>Low charging voltage<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Common Causes<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Worn brushes<\/li>\n\n\n\n<li>Faulty regulator<\/li>\n\n\n\n<li>Internal generator wear<\/li>\n\n\n\n<li>Poor wiring connections<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Many charging issues stem from the regulator rather than the generator itself.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Voltage Regulator Failure<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The external regulator controls charging output.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Overcharging<\/li>\n\n\n\n<li>Undercharging<\/li>\n\n\n\n<li>Intermittent charging<\/li>\n\n\n\n<li>Battery damage<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Why It Happens<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Mechanical regulators contain moving contacts that wear over time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Age and vibration accelerate deterioration.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Best Charging System Upgrade<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Recommended Product: Bosch Internal Regulator Alternator Conversion<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Benefits<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Improved charging output<\/li>\n\n\n\n<li>Better reliability<\/li>\n\n\n\n<li>Supports modern accessories<\/li>\n\n\n\n<li>Reduced maintenance<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Best For<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Touring vehicles<\/li>\n\n\n\n<li>Upgraded audio systems<\/li>\n\n\n\n<li>Cars driven regularly<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Many HD owners upgrade to alternators while retaining an original appearance.<\/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;Bosch Internal Regulator Alternator Conversion<\/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 : \"Bosch Internal Regulator Alternator Conversion\",\nfu_ebay_query : \"Bosch Alternator Conversion\",\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\">Headlight Problems<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Poor headlights are common in older Holdens.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dim lighting<\/li>\n\n\n\n<li>Flickering lights<\/li>\n\n\n\n<li>Uneven brightness<\/li>\n\n\n\n<li>Voltage drop<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Common Causes<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Corroded connectors<\/li>\n\n\n\n<li>Poor earths<\/li>\n\n\n\n<li>Worn switches<\/li>\n\n\n\n<li>Ageing wiring<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The original wiring often struggles to deliver full voltage to the headlights.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Best Headlight Upgrade<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Recommended Product: Narva Headlight Relay Kit<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Benefits<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Improved brightness<\/li>\n\n\n\n<li>Reduced switch load<\/li>\n\n\n\n<li>Better voltage delivery<\/li>\n\n\n\n<li>Increased reliability<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Best For<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Night driving<\/li>\n\n\n\n<li>Restored vehicles<\/li>\n\n\n\n<li>Touring Holdens<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Relay upgrades provide significant gains without altering appearance.<\/p>\n\n\n<div id=\"fu_ebay_2\"><!-- Presentation: cols = 4, rows = 2, slideshow = Manual, slides = 3, slideId = 2 --><div class=\"fu_ebay_results_container \">\n<h5 class=\"fu_ebay_results_title\" style=\"display: block !important;\">\n<a name=\"fu_slidetop_2\"><\/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;Narva Headlight Relay Kit<\/h5>\nLoading&#8230;<\/div>\n<\/div>\n<script>\n<!--\nvar content_fu_ebay_2 = null;\nvar waitForDepends_fu_ebay_2 = setInterval(function () {\n  if (typeof jQuery !== \"undefined\") {\n  if (window.fu_is_bot_useragent !== undefined) {\n    clearInterval(waitForDepends_fu_ebay_2);\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_2 = jQuery(\"#fu_ebay_2\");\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 : \"Narva Headlight Relay Kit\",\nfu_ebay_query : \"Narva Headlight Kit\",\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 : 2,\n\n      },\n      success : function( response ) {\n        content_fu_ebay_2.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\">Poor Earth Connections<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Earth faults are responsible for countless electrical issues.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Strange electrical behaviour<\/li>\n\n\n\n<li>Flickering lights<\/li>\n\n\n\n<li>Weak gauges<\/li>\n\n\n\n<li>Intermittent faults<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Common Locations<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Battery earth strap<\/li>\n\n\n\n<li>Body earth points<\/li>\n\n\n\n<li>Dashboard grounds<\/li>\n\n\n\n<li>Engine block connections<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Cleaning earth connections often solves multiple problems simultaneously.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Ignition System Problems<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The HD Holden uses a traditional points ignition system.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Symptoms<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Misfiring<\/li>\n\n\n\n<li>Hard starting<\/li>\n\n\n\n<li>Rough idle<\/li>\n\n\n\n<li>Poor performance<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Common Causes<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Worn points<\/li>\n\n\n\n<li>Condenser failure<\/li>\n\n\n\n<li>Weak ignition coil<\/li>\n\n\n\n<li>Distributor wear<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Regular maintenance is essential for reliable operation.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Best Ignition Upgrade<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Recommended Product: PerTronix Electronic Ignition Kit<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Benefits<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Eliminates points wear<\/li>\n\n\n\n<li>Improved starting<\/li>\n\n\n\n<li>Better reliability<\/li>\n\n\n\n<li>Reduced maintenance<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Best For<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Daily drivers<\/li>\n\n\n\n<li>Touring vehicles<\/li>\n\n\n\n<li>Mild performance upgrades<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Many owners consider this one of the best upgrades available for a Red Motor-powered Holden.<\/p>\n\n\n<div id=\"fu_ebay_3\"><!-- Presentation: cols = 4, rows = 2, slideshow = Manual, slides = 3, slideId = 3 --><div class=\"fu_ebay_results_container \">\n<h5 class=\"fu_ebay_results_title\" style=\"display: block !important;\">\n<a name=\"fu_slidetop_3\"><\/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;Ignition Kit<\/h5>\nLoading&#8230;<\/div>\n<\/div>\n<script>\n<!--\nvar content_fu_ebay_3 = null;\nvar waitForDepends_fu_ebay_3 = setInterval(function () {\n  if (typeof jQuery !== \"undefined\") {\n  if (window.fu_is_bot_useragent !== undefined) {\n    clearInterval(waitForDepends_fu_ebay_3);\n    if (typeof jQuery.ajax == \"undefined\") {\n      console.log(\"Fast eBay Listings: jQuery.ajax missing. 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Flat batteries, poor charging, ignition faults and wiring deterioration are among the most common issues owners face today. Fortunately, the system remains straightforward to repair, with excellent parts availability and strong aftermarket support.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Products such as Century batteries, Bosch alternator conversions, PerTronix ignition kits, Narva relay systems and Rare Spares wiring harnesses can dramatically improve reliability without compromising the classic character of the vehicle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For many HD owners, electrical maintenance is not just about convenience\u2014it&#8217;s about ensuring their Holden starts reliably, drives safely and remains enjoyable for years to come.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Related Articles<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/20\/hd-holden-steering-system-repair-guide\/\" type=\"post\" id=\"7259\">HD Steering System Repair Guide<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/australianholden.com\/index.php\/australian-holden\/h-series\/hd-holden\/hd-holden-suspension-steering\/\" type=\"page\" id=\"6379\">HD Holden Suspesion and Steering<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/20\/hd-holden-suspension-problems\/\" type=\"post\" id=\"7255\">HD Holden Suspension Problems<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/20\/hd-holden-transmission-problems\/\" type=\"post\" id=\"7253\">HD Holden Transmission Problems<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/20\/holden-red-engine-oil-leak-guide-2\/\" type=\"post\" id=\"7247\">Holden Red Engine Oil Leak Guide<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/16\/early-holden-roof-lining-repair-guide\/\" type=\"post\" id=\"7227\">Early Holden Roof Lining Repair Guide<\/a><\/li>\n\n\n\n<li>Best Battery Upgrades for Early Holdens<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The HD Holden arrived in 1965 with a significantly updated design, improved comfort and a more modern driving experience than the EH it replaced. While the styling generated plenty of discussion at the time, the electrical system was largely conventional Holden engineering\u2014simple, reliable and easy to maintain. However, more than half a century later, age [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3476,"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-7264","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>HD Holden Electrical Problems - Australian Holden<\/title>\n<meta name=\"description\" content=\"HD Holden electrical problems are relatively easy to diagnose once you understand how the original system works.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/20\/hd-holden-electrical-problems\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HD Holden Electrical Problems - Australian Holden\" \/>\n<meta property=\"og:description\" content=\"HD Holden electrical problems are relatively easy to diagnose once you understand how the original system works.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/australianholden.com\/index.php\/2026\/06\/20\/hd-holden-electrical-problems\/\" \/>\n<meta property=\"og:site_name\" content=\"Australian Holden\" \/>\n<meta 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