Posted: Mon Jun 20, 2016 10:41 am Post subject: electric cooling fans.
Hi, I was wondering if anyone could please answer a question for me please, I needed a new radiator for my 2005 impala 3.8,I upgraded to the heavy duty radiator that comes with the police package for this car and I also upgraded from the stock cooling fans to the heavy duty cooling fans for the police car application also, one of these fans has I believe 6 fan blades on one fan and the other one has 8 blades, can any one tell me why this is? I have called the manufacturer and they didn't know either. Any help would be greatly appreciated. Thank you.
One is the main fan, & the other is an auxiliary fan. They do not work with each other. One comes on first, [I believe the drivers side] & the other comes on later should more cooling be required. Why one might have more blades than the other, only the engineers would know that. But the control of when each fan comes on is different between a police car, & a normal car with police car fans. GARY
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