How Many Types of Turbocharger Abnormal Noises Are There?

[DeManuel]

Turbocharger abnormal noises are mainly divided into two types. The first type is noise caused by wear in the support channel; the second type is noise caused by damage to the turbine blades, resulting in unstable operation of the turbocharger during operation. Either type will accelerate the damage to the turbocharger and requires timely repair at an auto repair shop. Reasons for turbocharger abnormal noises: Turbocharger damage, causing abnormal noises from metal friction. Air leakage in the intake or exhaust pipes, or cracks in the intercooler, leading to pressurized gas leakage. Rupture of the bypass valve diaphragm, causing gas leakage. Burrs or protrusions on the inner wall of the housing, generating noise when high-speed airflow passes through. Accumulation of dirt in the diffuser section of the turbocharger. Dirt accumulation on the impeller surface, obstructing airflow. Working principle of a turbocharger: A turbocharger mainly consists of a turbine and a compressor, connected by a drive shaft. The turbocharger is essentially an air compressor that increases air intake by compressing air. It uses the inertial force of exhaust gases from the engine to drive the turbine in the turbine chamber, which in turn drives the coaxial impeller. The impeller compresses the air delivered from the air filter pipe, pressurizing it before it enters the cylinder.