{"id":274,"date":"2020-05-10T11:45:28","date_gmt":"2020-05-10T11:45:28","guid":{"rendered":"http:\/\/australianholden.com\/?page_id=274"},"modified":"2026-06-23T06:30:11","modified_gmt":"2026-06-23T06:30:11","slug":"hx-holden-common-issues","status":"publish","type":"page","link":"https:\/\/australianholden.com\/index.php\/home\/h-series\/hx-holden\/hx-holden-common-issues\/","title":{"rendered":"HX Holden Common Issues"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/australianholden.com\/index.php\/australian-holden\/h-series\/\">H Series Home<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/australianholden.com\/index.php\/australian-holden\/h-series\/hx-holden\/\">HX Holden<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/amzn.to\/4cqplxi\">HQ HJ HX HZ Repair Manual<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The HX Holden, released in 1976, it was an evolution of the earlier HQ and HJ models, refined with small updates rather than a complete redesign. Holden smoothed out drivability, improved emissions compliance, and kept the same tried-and-true formula Australians had come to love: big body, rear-wheel drive, and simple mechanicals that could take a beating.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here are the most common HX Holden problems owners and buyers should know about.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. Rust Problems<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rust is the number one enemy of the HX Holden today.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These cars were built in an era before modern corrosion protection, and many spent decades outdoors, on farms, or in coastal towns where salt and moisture did their work slowly but relentlessly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By now, rust can be found in almost every panel if a car has lived a hard life.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Common rust areas include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>lower doors<\/li>\n\n\n\n<li>rear quarter panels<\/li>\n\n\n\n<li>boot floors<\/li>\n\n\n\n<li>floor pans<\/li>\n\n\n\n<li>chassis rails<\/li>\n\n\n\n<li>windscreen surrounds<\/li>\n\n\n\n<li>sills and jacking points<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Utes and panel vans tend to be the worst, especially those used for commercial work.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Common symptoms<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bubbles under paint<\/li>\n\n\n\n<li>Rust holes in floor or tray<\/li>\n\n\n\n<li>Water leaks into cabin or boot<\/li>\n\n\n\n<li>Soft metal when tapped<\/li>\n\n\n\n<li>Thick filler hiding previous repairs<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A solid, rust-free HX shell is becoming genuinely valuable because proper repairs can quickly spiral into a full restoration budget.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Related guide<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/17\/hq-hj-hx-hz-and-wb-holden-rust-problems\/\" type=\"post\" id=\"7316\">HX Holden Rust Problems<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/17\/how-to-inspect-a-hq-hj-hx-hz-or-wb-holden-before-buying\/\" type=\"post\" id=\"7318\">How to Inspect a HX Holden Before Buying<\/a><\/li>\n\n\n\n<li>Best Rust Protection Products for Classic Holdens<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. Holden Six &amp; V8 Engine Wear<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The HX was offered with Holden\u2019s dependable straight-six engines and the iconic Aussie V8s, including the 253 and 308.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These engines are famously simple and strong, but time eventually catches up with even the toughest mechanicals.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">After decades of use, common issues include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>oil leaks from hardened gaskets<\/li>\n\n\n\n<li>worn timing chains<\/li>\n\n\n\n<li>carburettor tuning problems<\/li>\n\n\n\n<li>overheating under load<\/li>\n\n\n\n<li>general loss of compression in tired engines<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Many engines have also been rebuilt, modified, or swapped over the years, meaning condition varies dramatically from car to car.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Common symptoms<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rough idle<\/li>\n\n\n\n<li>Hard starting when cold<\/li>\n\n\n\n<li>Excessive oil consumption<\/li>\n\n\n\n<li>Poor fuel economy<\/li>\n\n\n\n<li>Engine hesitation under acceleration<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The upside is that parts are still widely available, and these engines remain straightforward to rebuild.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Related guide<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/16\/holden-253-308-v8-issues-explained\/\" type=\"post\" id=\"7340\">Holden 253 &amp; 308 V8 Issues Explained<\/a><\/li>\n\n\n\n<li>Best Oils for Classic Holden Engines<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. Cooling System Problems<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cooling issues are one of the most common causes of trouble in ageing HX Holdens.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Radiators clog internally, hoses become brittle, thermostats fail, and water pumps wear out after decades of heat cycles. Once that happens, overheating becomes a real risk \u2014 especially in Australian summer conditions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Many surviving HX models are still running old cooling components that are well past their service life.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Common symptoms<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rising temperature in traffic<\/li>\n\n\n\n<li>Coolant leaks under car<\/li>\n\n\n\n<li>Steam from engine bay<\/li>\n\n\n\n<li>Sweet smell of coolant<\/li>\n\n\n\n<li>Heater not functioning properly<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">An overheated Holden engine can quickly turn a simple repair into a full rebuild.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Related guide<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/australianholden.com\/index.php\/australian-holden\/h-series\/hx-holden\/hx-holden-cooling-system\/\" type=\"page\" id=\"6562\">HX Holden Cooling System Problems<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/17\/hq-hj-hx-hz-and-wb-radiator-upgrade-guide\/\" type=\"post\" id=\"7322\">HX Radiator Upgrade Guide<\/a><\/li>\n\n\n\n<li>Best Coolants for Classic Holden Engines<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. Transmission Wear (Trimatic &amp; Turbo 400)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The HX used both Trimatic and Turbo 400 automatic transmissions depending on engine and specification.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These were strong units in their day, but time, heat and neglect inevitably lead to wear.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Many HX Holdens have spent their lives:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>towing caravans<\/li>\n\n\n\n<li>hauling loads<\/li>\n\n\n\n<li>sitting in traffic<\/li>\n\n\n\n<li>or simply being driven hard without regular servicing<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">All of this takes a toll.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Common symptoms<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Slipping between gears<\/li>\n\n\n\n<li>Delayed gear engagement<\/li>\n\n\n\n<li>Harsh or jerky shifts<\/li>\n\n\n\n<li>Transmission fluid leaks<\/li>\n\n\n\n<li>Shuddering under acceleration<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Transmission rebuilds are common in restored or high-use HX vehicles today.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Related guide<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/17\/hq-hj-hx-hz-and-wb-holden-transmission-problems\/\" type=\"post\" id=\"7323\">HX Holden Transmission Problems<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/17\/trimatic-common-issues-explained\/\" type=\"post\" id=\"7314\">Trimatic Common Issues Explained<\/a><\/li>\n\n\n\n<li>Best Transmission Fluids for Classic Holdens<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5. Suspension &amp; Steering Wear<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The HX still delivers that classic big Holden ride \u2014 soft, floaty, and comfortable on rough roads \u2014 but worn suspension can completely ruin that experience.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">After nearly 50 years, most HX Holdens now have worn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>shock absorbers<\/li>\n\n\n\n<li>control arm bushes<\/li>\n\n\n\n<li>steering linkages<\/li>\n\n\n\n<li>sway bar components<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Cars that were used for towing or heavy work tend to be in worse condition again.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Common symptoms<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Loose or wandering steering<\/li>\n\n\n\n<li>Clunking over bumps<\/li>\n\n\n\n<li>Uneven tyre wear<\/li>\n\n\n\n<li>Steering vibration at speed<\/li>\n\n\n\n<li>Excessive body roll<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A full suspension refresh is one of the best upgrades you can make to an HX.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Related guide<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/17\/hq-hj-hx-hz-and-wb-holden-suspension-problems\/\" type=\"post\" id=\"7326\">HX Holden Suspension Problems<\/a><\/li>\n\n\n\n<li>Best Suspension Upgrades for HX Holden<\/li>\n\n\n\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/17\/hq-hj-hx-hz-and-wb-holden-steering-system-repair-guide\/\" type=\"post\" id=\"7330\">HX Steering System Repair Guide<\/a><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>6. Electrical Problems<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Electrical systems in classic Holdens were simple, but age introduces plenty of headaches.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">HX wiring looms, switches and connectors are now well into their second life cycle, and decades of modifications don\u2019t help reliability.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Common issues include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>charging system faults<\/li>\n\n\n\n<li>faulty gauges<\/li>\n\n\n\n<li>intermittent starting issues<\/li>\n\n\n\n<li>blown fuses<\/li>\n\n\n\n<li>poor earth connections<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Common symptoms<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Flickering lights<\/li>\n\n\n\n<li>Flat batteries<\/li>\n\n\n\n<li>Gauges behaving erratically<\/li>\n\n\n\n<li>Starting problems<\/li>\n\n\n\n<li>Random electrical faults<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">In many cases, cleaning earth points solves more issues than replacing parts.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Related guide<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/17\/hq-hj-hx-hz-and-wb-holden-electrical-problems\/\" type=\"post\" id=\"7332\">HX Holden Electrical Problems<\/a><\/li>\n\n\n\n<li>Best Battery Upgrades for Classic Holdens<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>7. Oil Leaks<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Oil leaks are almost part of the personality of any old Holden at this point.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">HX engines commonly develop leaks as rubber seals harden and gaskets shrink over time. While small leaks are often tolerated, larger leaks should never be ignored.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Common leak areas include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>rocker cover gaskets<\/li>\n\n\n\n<li>rear main seals<\/li>\n\n\n\n<li>sump gaskets<\/li>\n\n\n\n<li>timing cover seals<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Common symptoms<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Oil spots under the car<\/li>\n\n\n\n<li>Burning oil smell after driving<\/li>\n\n\n\n<li>Dirty engine bay<\/li>\n\n\n\n<li>Smoke from exhaust area<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A well-sealed engine is always worth chasing on a classic Holden.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Related guide<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/16\/holden-253-308-v8-issues-explained\/\" type=\"post\" id=\"7340\">Holden V8 Oil Leak Problems Explained<\/a><\/li>\n\n\n\n<li>Best Engine Oils for Classic Holden Engines<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>8. Interior Wear &amp; Ageing Trim<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">HX interiors were built to be practical, not immortal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">After decades of Australian sun and use, most interiors show significant wear unless they\u2019ve been restored.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Common issues include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>cracked dashboards<\/li>\n\n\n\n<li>sagging roof lining<\/li>\n\n\n\n<li>faded plastics<\/li>\n\n\n\n<li>worn seat upholstery<\/li>\n\n\n\n<li>loose or rattling trim<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Utes and work vehicles are usually the worst affected.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Common symptoms<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sun-damaged dash<\/li>\n\n\n\n<li>Interior rattles<\/li>\n\n\n\n<li>Loose door trims<\/li>\n\n\n\n<li>Sagging headliner<\/li>\n\n\n\n<li>Torn or worn seats<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Good original interior pieces are becoming harder to find every year.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Related guide<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/17\/hq-hj-hx-hz-and-wb-holden-interior-restoration-guide\/\" type=\"post\" id=\"7334\">HX Holden Interior Restoration Guide<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/australianholden.com\/index.php\/2026\/06\/17\/hq-hj-hx-hz-and-wb-holden-roof-lining-repair-guide\/\" type=\"post\" id=\"7337\">HX Roof Lining Repair Guide<\/a><\/li>\n\n\n\n<li>Best Interior Products for Classic Holdens<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Is the HX Holden Reliable?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For a vehicle built in the mid-1970s, the HX Holden is still remarkably tough when properly maintained.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The mechanical simplicity is a huge advantage. There\u2019s less to go wrong compared to modern cars, and most issues are predictable and well understood within the classic Holden community.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Most HX problems today are:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>age-related<\/li>\n\n\n\n<li>wear-related<\/li>\n\n\n\n<li>rust-related<\/li>\n\n\n\n<li>maintenance-related<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Buy a solid example and they still make excellent cruisers, tow vehicles or restoration projects.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/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;HX Holden<\/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. 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Holden smoothed out drivability, improved emissions compliance, and kept the same tried-and-true formula Australians had come to love: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":583,"parent":39,"menu_order":7,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"class_list":["post-274","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>HX Holden Common Issues - Australian Holden<\/title>\n<meta name=\"description\" content=\"The HX Holden, released in 1976, it was an evolution of the earlier HQ and HJ models, refined with small updates rather than a complete redesign.\" \/>\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\/home\/h-series\/hx-holden\/hx-holden-common-issues\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HX Holden Common Issues - 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