A turbo forces more air into the cylinders so the engine can burn more fuel — increasing horsepower without increasing displacement.
Exhaust gas spins a turbine wheel connected by a common shaft to a compressor wheel, which pressurizes intake air. A wastegate or VGT vanes control boost.
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Replacement runs $1200–$4500 including parts and 4-12 hours labor. Exact cost depends on vehicle, parts tier (OEM vs aftermarket), and local labor rate.
Expected lifespan is 100,000-180,000 miles (longer with strict oil-change intervals). Driving conditions, climate, and maintenance affect real-world life.
Whistling or whining noise; Blue/black exhaust smoke; Loss of power; Oil consumption; Boost-pressure code (P0299); Oily intercooler piping.
Most modern turbochargers are sealed units that get replaced rather than rebuilt. A shop will diagnose, confirm with a load or output test, then swap the unit and verify operation.
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