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Discussion Starter #1
AC is working great on the car but when it is on, the exterior cooling fan speed is doing crazy things...speeding up, slowing down, turning off and on every few seconds. I have never had a car do this and it cant be right...can it? What are your thoughts. If I need to I can do a video to attach.
 

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Our radiator fans are variable speed (PWM controlled). It will do different things depending on whether you AC is on or off. It's not like the old-school fans where they just had a high and low speed switched by a relay.

BP
 

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Discussion Starter #3
So you are saying this is normal?
 

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Discussion Starter #5
Great! Thanks. I thought I was about to have some expensive repair. Whew!
 
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