Turbocharger fault

The most common turbocharger fault is due to incorrect operator actions (Not allowing the engine to idle when started and before stopping), poor maintenance and not using the correct type of oil. A turbocharger can rotate at up to 160,000 revolutions per minute under full power, therefore the rotor bearings require adequate lubrication. Worn bearings and seals will allow oil to pass into the engine! Another problem is if the air hoses to and from the turbocharger leak due to damaged or loose hose clips allowing air to escape.