Blog – knowledge, advice, news. 3 signs that may indicate a gearbox failure in a lorry

The gearbox in lorries operates under heavy loads, especially on long journeys and in difficult conditions. It is therefore not surprising that it can fail. The key to minimising losses is to quickly recognise worrying symptoms and seek professional help. A visit to a specialised TIR service centre allows for a precise diagnosis of the fault and prevents serious damage to the drive system.

Difficulties with gear shifting

Delayed gearbox response, jerks when changing gears or lever jamming are classic symptoms of failure. If the driver notices that the gears are harder to shift than usual or cannot be shifted at all, this may indicate worn synchronisers, low gearbox oil level or more serious mechanical problems. Such symptoms should never be ignored – downplaying the signs can lead to the vehicle breaking down on the road and a costly tow to the nearest TIR service station or call for mobile service. That is why it is always worth keeping an eye on your vehicle to prevent more serious breakdowns.

Noises and howling from the gearbox area

Disturbing noises such as grinding, howling or metallic knocking are a clear indication that something is not working properly in the gearbox. The source of the noise may be worn bearings, damaged gears or lack of lubrication. If such symptoms occur while driving, especially at certain speeds or under certain loads, you should see a specialist as soon as possible. A TIR service centre with the appropriate diagnostic facilities will help identify the source of the noise and take action before more serious damage to the drive components occurs. It is worth working only with reputable companies to guarantee good quality services.