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Home >> Volvo >> 1991 >> 240 SE, AW70L >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Emission Systems & Sub-Systems >> Thermostatic Air Cleaner >> 940 GLE

940 GLE

  1. Check operation of air control door at various temperatures. When temperature is below 41°F (5°C), air control door should be closed, allowing only preheated air to enter air intake.
  2. When temperature is approximately 50°F (10°C), air control door should be half-way open, allowing preheated and cold air to enter air intake.
  3. At temperatures above 59°F (15°C), air control door should be closed, allowing only cold air to enter air intake.