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Home >> Jeep >> 2014 >> Grand Cherokee Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (3.0L Turbo Diesel (Service Information)) >> Turbocharger System >> Turbocharger >> Diagnosis And Testing >> Diagnosis And Testing - Turbocharger >> Turbocharger Diagnostic Procedure

Turbocharger Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Visually inspect all the blades of the turbocharger compressor and turbine wheel for damage which may have been caused by foreign particles. For example if the air filter was improperly installed or an incorrect air filter was installed.
    CAUTION:

    Do NOT  try to move the actuator mechanism by pushing or pulling the connecting rod. There is a worm gear attached to the actuator mechanism, which doesn't allow any movement from its output side.

  2. If the actuator mechanism doesn't move at all check power and ground supply of the actuator.
    CAUTION:

    The boost pressure actuator is not serviceable and should not be disassembled. Do not remove or disconnect the boost pressure actuator connecting rod. Failure to follow these instructions may result in performance concerns or failure.

  3. If the actuator mechanism doesn't move even though the electrical connection has been verified or moves erratically the turbocharger assembly is defective and must be replaced.
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