What Causes Turbocharger Failure?
2 Answers
1. Use of Contaminated Lubricating Oil: Contaminated oil entering the turbocharger can cause wear on the shaft, bearings, and bearing housing holes, disrupt the rotor's dynamic balance, and ultimately lead to turbocharger failure. 2. Insufficient Lubricating Oil: Turbocharger oil serves both lubricating and cooling functions. Insufficient oil primarily affects the cooling function, causing the turbocharger to overheat, burn out the shaft and bearings, disrupt the rotor's dynamic balance, and ultimately result in turbocharger damage. 3. Aged Engine Oil: Leads to clogging of the turbocharger oil passages and adhesion to the turbine shaft, causing turbocharger failure. 4. Use of Low-Quality or Deteriorated Lubricating Oil: Causes wear on the turbocharger turbine shaft.
When the turbocharger is not working, common causes include mechanical component damage or blockage. The blades inside the turbo may be deformed by high temperatures or foreign objects, which can reduce the boost effect; cracks or leaks in the intake or exhaust pipes can also disrupt normal airflow; bearing wear is another issue—if you hear unusual noises or experience weak acceleration, it may be due to failing bearings; additionally, a stuck bypass valve can cause the turbo to malfunction. I recommend paying attention to vehicle noise and power changes while driving. If any issues arise, don’t delay—visit a professional repair shop for inspection to prevent minor problems from turning into major repairs. The turbocharger system is a critical component of the engine, and proper maintenance ensures smooth vehicle performance.