Engine Performance: System: Turbocharger: Description
Turbocharger is mounted to exhaust manifold on left side of engine. Turbocharger components include turbine and compressor impellers, impeller shaft, bearings, impeller housings, wastegate controller, and wastegate (exhaust by-pass valve).
Pressure actuated wastegate, located at front of compressor housing, prevents excessive intake boost pressure. If it fails, an emergency relief valve located on intake manifold releases any excess pressure. Engine oil pressure provides constant lubrication to impeller bearings.