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jacabean · 08-20-2015, 06:54 AM

Trying to understand how the cooling fans cycle . this pertains to my 996 3.4 which i believe the cooling system operates the same as in the 986 . it has been hot up here in the northeast lately and sitting in slower traffic my temp. climbs to the right side of the zero in the 180 mark . my fans cycle but on low only and the needle barely moves from that point until i am under a steady speed again . my fans never cycle into high . I turn on my AC and the fans come on in high mode and they quickly push the temp down . Is this normal ? should the fans cycle into high on there own ? my boxster needle barely moves in this kind of traffic .

08-20-2015, 06:54 AM	#1
jacabean Registered User Join Date: Nov 2009 Location: mass Posts: 731	radiator fans ? Trying to understand how the cooling fans cycle . this pertains to my 996 3.4 which i believe the cooling system operates the same as in the 986 . it has been hot up here in the northeast lately and sitting in slower traffic my temp. climbs to the right side of the zero in the 180 mark . my fans cycle but on low only and the needle barely moves from that point until i am under a steady speed again . my fans never cycle into high . I turn on my AC and the fans come on in high mode and they quickly push the temp down . Is this normal ? should the fans cycle into high on there own ? my boxster needle barely moves in this kind of traffic .