Without Air Conditioning

Blower Motor Diagnosis Procedure (1 Of 2):

Blower Motor Diagnosis Procedure (2 Of 2):

BLOWER NOISE

A constant air rush noise is typical of all heater systems when operating on "HI" blower. Some systems and modes may be louder than others. If possible, check a similar vehicle to determine whether the noise is typical or excessive. For diagnosis of excessive blower noise, refer to accompanying figures.