Quote:
Originally Posted by mattCSLnut
Isn't that the A/C electric cooling assist fan for when one's stuck in slow moving traffic with the A/C On 
It usually comes on when the natural air flow to the A/C rad (which is in front of the main engine cooling rad ) is reduced, most noticeably is slow city driving on a hot day) as the temperature of the A/C gasses increases requiring additional cooling.
IIRC none A/C Cecils don't have this AUX electric fan. |
That's the one, just need to know exactly how it works and why it is needed