Noise Diagnosis

Vibration/Rattle

Important
^ Feel lines, hoses, brackets during diagnosis. Many noises may stop while being contacted.

Potential causes:

^ Belt misaligned in pulley groove.
^ Belt tensioner.
^ Lines/hoses contacting each other.
^ Brackets loose.
^ Other drive components.
^ Check other related bulletins.

Moans

Potential causes:

^ Improper A/C charge.
^ Other drive components.
^ Loose or misaligned bracket.
^ Lines/hoses contacting other components.
^ Check related bulletins.

Screech

Potential causes:

^ Serpentine belt.
^ Compressor bearings.
^ Compressor clutch.
^ Check related bulletins.