2001 Honda Odyssey Owner's Manual - Page 271

Air Conditioning Filter, Drive Belts Air Conditioning Filter The air conditioning filter removes pollen and dust that is brought in from the outside through the heating and cooling system/climate control system. This filter should be replaced every 30,000 miles (48,000 km) under normal conditions. It should be replaced every 15,000 miles (24,000 km) if you drive primarily in urban areas that have high concentrations of soot in the air from industry and diesel-powered vehicles. Replace it more often if air flow from the heating and cooling system/climate control system becomes less than usual. Have the air conditioning filter replaced by your Honda dealer. Drive Belts POWER STEERING BELT The belt should have the following "play" or deflection. Power steering belt: 0.51 - 0.65 in (13.0 - 16.5 mm) If you see signs of wear or looseness, have your dealer adjust or replace the belts. ALTERNATOR BELT Check the condition of the two drive belts (power steering belt and alternator belt). Examine the edges of each belt for cracks or fraying. Check the tension of the power steering belt by pushing on it with your thumb midway between the pulleys. Maintenance