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Old 07-30-2010, 12:00 AM   #1
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Default 2004 bonne cooling fans

my 04 bonneville is losing a little coolant. 70,000miles. I have not seen the cooling fans come on. What can be preventing them from firing up?
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Old 07-30-2010, 07:26 AM   #2
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The low speed fans are programmed to come on at 216F and the high speed at 228F. If you are unsure about the fans working, turn the AC on to max. They should automatically come on with the AC.
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Old 07-30-2010, 08:12 AM   #3
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Losing a little coolant and fans are 2 different problems.

How much does it lose?
Some will evaporate over 70k miles, If its loosing a lot. Check too see any visible signs of loosing it, (hole in rad?, Close fitting? Cap letting it leak out? check by the heads to see if its seeping out there. (has happened) also make sure its Not in the oil!
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