MAZDA Piston Engine Thermostatic Air Cleaner: Testing

Check position of snorkel, condition of air filter and position of air cleaner housing. When engine is cold, air door should be closed. When engine is at normal operating temperature, air door should be open.

Fig 1: Sectional View of Mazda Piston Engine Thermostatic Air Cleaner

Courtesy of MAZDA MOTORS CORP.