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Plenum Chamber and Drain Valve-Cleaning

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The plenum chamber is located in front of the windshield and below the air inlet grille panel.

  1. Remove the air inlet grille panel.
  2. Clean the plenum chamber, drains and the air inlet grille panel of debris blockage.
  3. Flush the plenum chamber, drains and the air inlet grille panel with clean water.
  4. Install the air inlet grille panel.
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