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The diesel turbo actuator controls the pressure of the diesel turbocharger, which gives an additional boost to your engine. Without a working diesel turbo actuator, the engine will not receive enough air to generate additional power. This could lead the engine to suddenly lose power or burn more fuel than necessary. A faulty actuator could also damage the turbocharger itself. 

What Is a Turbo Actuator?

The turbo actuator controls the output of the turbocharger, which is then used to send additional power to the engine. It works as a pressure relief valve by diverting excess exhaust gas away from the intake manifold based on how much is needed to power the engine. The turbo consists of a turbine wheel and a compressor. The actuator sets the speed of both the turbine and compressor to ensure the engine receives the correct amount of boost. 

The turbo actuator is made up of a spring and a diaphragm. The spring keeps the actuator closed until the correct pressure threshold is reached. The excess gas is then released to reduce boost pressure. Heat and pressure can damage the spring over time, and the actuator will open sooner than necessary, slowing the turbo. The diaphragm may also fail to open due to corrosion. 

If the actuator fails, the turbocharger will likely spin too fast, creating additional pressure which can damage the engine. Individual components on the turbo may also become damaged under excess pressure, including the sleeves and the sliding vane that releases the excess gas.

Shop for replacement turbocharger actuators at Bostech Auto to resolve the issue. Find the correct part for your make and model. 

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