CM2150 Electronic Control System – 019-390   Turbocharger Speed Sensor

General Information

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The turbocharger speed sensor is located on the top of the turbocharger between the compressor and the turbine housings. INSITE™ electronic service tool can be used to monitor the sensor for proper operation.

 
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Remove

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Lift up on the locking tab and pull the electrical connectors apart. Remove the mounting capscrew.

Remove the sensor.

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Inspect for Reuse

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Inspect the turbocharger speed sensor body for signs of melting or damage. If signs of melting or damage are found on the sensor, inspect the turbocharger coolant supply for restriction.

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If the turbocharger speed sensor is being removed due to an oil leak, inspect the turbocharger speed sensor o-ring for signs of damage.  If the o-ring is cut or damaged, the o-ring must be replaced.

If there are no cuts or damage evident to the o-ring, it is possible to reseal and prevent oil leaks.  To do this, apply Loctite™ 5699, or equivalent, to the o-ring and the area where the o-ring sits on the speed sensor, prior to assembly.

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Install

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If installing a new turbocharger speed sensor, make sure the new turbocharger speed sensor has a new o-ring installed.

If the turbocharger speed sensor was removed due to an oil leak, it is possible to reuse the turbocharger speed sensor and either replace or inspect the o-ring for reuse (as described in the Inspection section above).

Apply Loctite™ 5699, or equivalent, to the o-ring.  This helps seal and prevent oil leaks.

Install the turbocharger speed sensor into the engine. Tighten the capscrew that holds the speed sensor in place.

Torque Value:  9  n.m  [80 in-lb]

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Push the connectors together until they lock.

Start the engine and verify with the electronic service tool that the turbocharger speed sensor is working properly.

NOTE: The connector must be fully mated.

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Last Modified:  06-Jan-2011