2004 KIA OPTIMA
80,000 MILES
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the electric radiator cooling fans (on the 6 cyl, there are two)...,

What is their NORMAL operating sequence?

In this car -- they both remain OFF. during a test / observation period.
The test period was over 30 min (ambient temp 50F) dash TEMP GAUGE
reading in the middle of range.



Dec 29, 2012 at 5:12 AM
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KHLOW2008
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Both fans should come on when the A/C is turned on.

When starting from cold, it could take between 20 to 40 minutes for them to come on and how long the take to come on is not the concern. What you must confirm is that when they do come on, the gauge is not reading higher than normal and after turning on, they should turn off after a short running period, most probably less than 1 minute.
Dec 29, 2012 at 12:07 PM