When the climate control is on, while traveling at slow speed (25 mph or less), I hear a fan whine. Although I don't believe it is the alternator, it sounds like alternator noise coming through electronics. The pitch of the whine changes with engine RPM. Shut off climate control and it stops. Still present with radio off. Not a high pitch whine, more of a medium pitch.
I have not done much else to investigate. I need to see if it present only when A/C running....and also see if I can further isolate it.
Confusing because I would assume the climate fan speed is not be modified by engine rpm. The airflow doesn't indicate such.
Thoughts?
2LT, Z51
I have not done much else to investigate. I need to see if it present only when A/C running....and also see if I can further isolate it.
Confusing because I would assume the climate fan speed is not be modified by engine rpm. The airflow doesn't indicate such.
Thoughts?
2LT, Z51