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speeds of radiator's fans

886 views 8 replies 6 participants last post by  codewize 
#1 ·
How many speeds does the radiator's fans got, ?? one speed or more, or it depend on the temperature , I'm asking that because I think my radiator's fans are slow… any ideas? :bigroll:


I'm driving 96 STS
 
#3 ·
Ranger, you are close enough.
The exact specs are:
Low Speed Fan Operation 229°F
High Speed Fan Operation 234°F
These specs are for 98+ I could not find 96MY but, I guessing there're close.
Its hard to believe they let the N* get that hot for high speed fan operation.
 
#7 ·
That's the point. Most of the time, low speed operation is sufficient for proper cooling. But if the engine does heat up further, the fans will go to a higher speed, and you WILL hear them then.

Cadillacs are quality vehicles, and nothing was overlooked. :) Even the audible noise from the cooling fans.
 
#9 ·
I know what you're talking about. My 89 does that. When they're on slow it's really slow like you can see the blades almost but when the car gets hot they spin right up so I guess it's normal?
 
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