https://dieseluniversal.com/en/blog English guides on diesel engines and diesel injection. en https://dieseluniversal.com/en/blog/diesel-engine-rough-idle-causes https://dieseluniversal.com/en/blog/diesel-engine-rough-idle-causes Fri, 02 Oct 2026 00:00:00 GMT Diagnostics Why a diesel engine shakes or hunts at idle: injectors, air in the fuel, EGR, sensors, filters and engine mounts. How to diagnose it in order. https://dieseluniversal.com/en/blog/diesel-ecu-remapping-explained https://dieseluniversal.com/en/blog/diesel-ecu-remapping-explained Thu, 01 Oct 2026 00:00:00 GMT ECU What it means to remap or reprogram a diesel ECU, which parameters are adjusted, what it is used for, the risks and the legal and mechanical considerations. https://dieseluniversal.com/en/blog/diesel-engine-maintenance-guide https://dieseluniversal.com/en/blog/diesel-engine-maintenance-guide Thu, 01 Oct 2026 00:00:00 GMT Maintenance A practical diesel engine maintenance guide: oil, air and fuel filters, water separator, coolant, turbo, injection and driving habits to make it last. https://dieseluniversal.com/en/blog/diesel-engine-wont-start-causes https://dieseluniversal.com/en/blog/diesel-engine-wont-start-causes Thu, 01 Oct 2026 00:00:00 GMT Diagnostics What to check when a diesel engine won't start: battery, fuel, air in the lines, glow plugs, injection pressure and sensors, in a logical order. https://dieseluniversal.com/en/blog/diesel-engine-knocking-noise-causes https://dieseluniversal.com/en/blog/diesel-engine-knocking-noise-causes Wed, 30 Sep 2026 00:00:00 GMT Diagnostics Why a diesel engine knocks or makes noises: normal diesel clatter, injectors, injection timing, fuel, clearances and turbo. How to tell normal from serious. https://dieseluniversal.com/en/blog/water-in-diesel-fuel-contamination https://dieseluniversal.com/en/blog/water-in-diesel-fuel-contamination Tue, 29 Sep 2026 00:00:00 GMT Maintenance What water and dirt in diesel fuel cause, how they damage pumps and injectors, how to detect contaminated fuel and how to protect with filters and a water separator. https://dieseluniversal.com/en/blog/diesel-engine-high-fuel-consumption https://dieseluniversal.com/en/blog/diesel-engine-high-fuel-consumption Mon, 28 Sep 2026 00:00:00 GMT Diagnostics Why a diesel engine uses more fuel than normal: injectors, filters, turbo, tire pressure, EGR, DPF and driving habits. How to diagnose it. https://dieseluniversal.com/en/blog/how-often-change-diesel-fuel-filter https://dieseluniversal.com/en/blog/how-often-change-diesel-fuel-filter Sun, 27 Sep 2026 00:00:00 GMT Maintenance How often to change a diesel fuel filter, what the filter and water separator do, signs of a clogged filter and what happens if it is neglected. https://dieseluniversal.com/en/blog/diesel-injector-test-bench-how-it-works https://dieseluniversal.com/en/blog/diesel-injector-test-bench-how-it-works Sat, 26 Sep 2026 00:00:00 GMT Injectors What a diesel injector test bench is, how it reproduces engine conditions and what it measures: delivery, return flow, opening pressure and spray pattern. https://dieseluniversal.com/en/blog/diesel-vs-gasoline-engine-differences https://dieseluniversal.com/en/blog/diesel-vs-gasoline-engine-differences Fri, 25 Sep 2026 00:00:00 GMT Fundamentals Differences between a diesel and a gasoline (petrol) engine: ignition, compression, fuel economy, torque, maintenance and emissions. Advantages and limits of each. https://dieseluniversal.com/en/blog/adblue-scr-system-explained https://dieseluniversal.com/en/blog/adblue-scr-system-explained Thu, 24 Sep 2026 00:00:00 GMT Emissions What AdBlue (DEF) is, how an SCR system reduces nitrogen oxides in diesel engines, which problems it gives (crystallization, sensors, pump) and how to look after it. https://dieseluniversal.com/en/blog/ultrasonic-diesel-injector-cleaning https://dieseluniversal.com/en/blog/ultrasonic-diesel-injector-cleaning Wed, 23 Sep 2026 00:00:00 GMT Injectors How ultrasonic cleaning of diesel injectors works, which deposits it removes, when it is enough and when components must be repaired or replaced. https://dieseluniversal.com/en/blog/diesel-glow-plugs-symptoms-testing https://dieseluniversal.com/en/blog/diesel-glow-plugs-symptoms-testing Tue, 22 Sep 2026 00:00:00 GMT Maintenance What glow plugs do in a diesel engine, which symptoms a bad glow plug gives (hard cold starting, white smoke) and how they are tested. https://dieseluniversal.com/en/blog/diesel-egr-valve-problems-symptoms https://dieseluniversal.com/en/blog/diesel-egr-valve-problems-symptoms Mon, 21 Sep 2026 00:00:00 GMT Emissions What the EGR valve on a diesel engine is, what it is for, which symptoms appear when it clogs with carbon and what the options are: clean, repair or replace. https://dieseluniversal.com/en/blog/what-is-a-dpf-diesel-particulate-filter https://dieseluniversal.com/en/blog/what-is-a-dpf-diesel-particulate-filter Sun, 20 Sep 2026 00:00:00 GMT Emissions What a diesel particulate filter (DPF) is, how it traps soot, what regeneration is, why it clogs and what symptoms appear when it fails. https://dieseluniversal.com/en/blog/diesel-engine-loss-of-power-causes https://dieseluniversal.com/en/blog/diesel-engine-loss-of-power-causes Sat, 19 Sep 2026 00:00:00 GMT Diagnostics Why a diesel engine loses power: filters, air, turbo, injectors, pump, EGR and DPF. The most common causes and how they are diagnosed in order. https://dieseluniversal.com/en/blog/black-white-blue-smoke-diesel-engine https://dieseluniversal.com/en/blog/black-white-blue-smoke-diesel-engine Wed, 16 Sep 2026 00:00:00 GMT Diagnostics Why a diesel engine blows black, white or blue smoke, what causes each color, and how the problem is diagnosed before any parts are replaced. https://dieseluniversal.com/en/blog/types-of-diesel-injection-pumps https://dieseluniversal.com/en/blog/types-of-diesel-injection-pumps Sat, 12 Sep 2026 00:00:00 GMT Injection pumps Differences between rotary, in-line and Common Rail high-pressure injection pumps: how they work, where they are used and which faults are typical for each. https://dieseluniversal.com/en/blog/diesel-turbo-failure-symptoms-causes https://dieseluniversal.com/en/blog/diesel-turbo-failure-symptoms-causes Wed, 09 Sep 2026 00:00:00 GMT Turbos How to recognize a failing diesel turbocharger: smoke, whistling, loss of power and oil consumption. Causes of failure, what is inspected and when a rebuild makes sense. https://dieseluniversal.com/en/blog/what-is-common-rail-diesel-system https://dieseluniversal.com/en/blog/what-is-common-rail-diesel-system Sat, 05 Sep 2026 00:00:00 GMT Common Rail A clear explanation of Common Rail diesel injection: components, how it works, advantages over mechanical pumps, typical faults and maintenance. https://dieseluniversal.com/en/blog/bad-diesel-injector-symptoms https://dieseluniversal.com/en/blog/bad-diesel-injector-symptoms Wed, 02 Sep 2026 00:00:00 GMT Injectors Smoke, loss of power, rough idle, high fuel use, hard starting, knocking and warning lights: how to recognize a failing diesel injector and how it is confirmed.