Explorer 2WD V6-245 4.0L (1994)
Bimetal Sensor
^ Check the bimetal sensor.
^ Bring the temperature of the bimetal sensor below 24°C (75°F) and apply 54 kPa (16 in Hg) vacuum.
^ Does the door close (go to the hot air position)?
YES -- Go to AIS 7. See: AIS 7 Air Filter Check
NO -- Replace bimetal sensor.
AIS 7 Air Filter Check
^ Check the air filter.
^ Is the air filter excessively dirty?
YES -- Replace air filter.
NO -- Go to AIS 8. See: AIS 8 Sealing Integrity
AIS 8 Sealing Integrity
^ Check hoses that connect air cleaner to engine.
^ Are there cracks or leaks?
^ Are there any cracks in the air cleaner assembly?
^ Check the air filter for proper sealing.
^ Are there any leaks around the air filter seal?
YES -- Replace parts as required.
NO -- Go to AIS 9. See: AIS 9 Check Torque
AIS 9 Check Torque
^ Check clamps and air cleaner screws (if equipped) for proper torque.
^ Is torque correct?
YES -- Go to AIS 10. See: AIS 10 Check Idle Speed
NO -- Tighten to specification.
AIS 10 Check Idle Speed
^ Check idle speed to specifications.
