Resources and insights

A windscreen that fogs constantly means there is more moisture inside the cabin than the ventilation can remove. Common sources…

Carbon cleaning is worth doing on a direct injection engine showing symptoms such as a rough cold idle, misfires or…

A car heater blowing cold usually means either the engine is not getting hot enough, most often from a thermostat…

A misfire means one or more cylinders are failing to burn their fuel properly. It feels like a stumble, shake…

Failing diesel injectors typically cause hard starting, a rough or uneven idle, a distinct knocking or rattling localised to one…

A mild whistle that rises and falls with acceleration is normal turbo behaviour on many cars. A siren like whine…

A faulty EGR valve typically causes rough idling, reduced power or limp mode, black smoke, poor fuel economy and an…

Most stop start failures are the system suspending itself rather than breaking. Low battery state of charge is the leading…

A diesel that struggles only on cold mornings usually has failing glow plugs or a faulty glow plug relay. A…

Most manufacturers specify a brake fluid change every two years regardless of kilometres, because brake fluid takes on water from…

A car that cranks slowly or clicks rapidly with dim dash lights usually has a flat battery. A single loud…